Platform voor duurzaamheid binnen het bedrijfsleven | Change Inc. - Duurzaambedrijfsleven

Overview

Snoop Summary for duurzaambedrijfsleven.nl

This is a free and comprehensive report about duurzaambedrijfsleven.nl. If duurzaambedrijfsleven.nl was to be sold it would possibly be worth $278 USD (based on the daily revenue potential of the website over a 24 month period). Duurzaambedrijfsleven.nl receives an estimated 129 unique visitors every day - a decent amount of traffic! This report was last updated 8th January, 2021.

About duurzaambedrijfsleven.nl

Site Preview:
Title:	Platform voor duurzaamheid binnen het bedrijfsleven \| Change Inc.
Description:	Change Inc. is het platform voor duurzame verandering. Sluit je aan en verander mee. Volg het laatste nieuws over duurzaamheid en het bedrijfsleven.
Keywords and Tags:	business
Related Terms:	de brand in het landhuis, doe het zelf poedercoaten, eneco duurzame elektriciteit, het alternatief voor roken, het nieuwsblad, kpn klantenservice bellen vanuit het buitenland, nederlandse stichting voor het gehandicapte kind, nu het laatste nieuws het eerst op nu nl, speenvarken aan het spit, vakanties aan het comomeer accommodatie
Fav Icon:
Age:	Over 13 years old
Domain Created:	28th July, 2010
Domain Updated:	3rd December, 2019
Domain Expires:

Review

Snoop Score

2/5

Valuation

$278 USD

Note: All valuation figures are estimates.

Popularity

Low

Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank:	7,703,574
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority:	0
Moz Page Authority:	0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors:	129
Monthly Visitors:	3,926
Yearly Visitors:	47,085

Note: All visitors figures are estimates.

Visitors By Country

Revenue

Daily Revenue:	$0 USD
Monthly Revenue:	$11 USD
Yearly Revenue:	$134 USD

Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top Ranking Keywords (US)

Domain Analysis

	Value	Length
Domain:	duurzaambedrijfsleven.nl	24
Domain Name:	duurzaambedrijfsleven	21
Extension (TLD):	nl	2

Page Speed Analysis

Average Load Time:	1.40 seconds
Load Time Comparison:	Faster than 63% of sites

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

Progressive Web App

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.change.inc/

Updated: 8th January, 2021

1.14 seconds

First Contentful Paint (FCP)

70%

27%

3%

0.01 seconds

First Input Delay (FID)

98%

1%

Simulate loading on desktop

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for duurzaambedrijfsleven.nl. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.4 s
The time taken for the page to become fully interactive.

Total Blocking Time — 100 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Cumulative Layout Shift — 0.001
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 1.4 s
The time taken for the page's main thread to be quiet enough to handle input.

Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive duurzaambedrijfsleven.nl as laggy when the latency is higher than 0.05 seconds.

Network Requests
Below is a list of network requests that were made during page load.

URL	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://duurzaambedrijfsleven.nl/	0	326.5019999817	310	0	301	text/html
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https://www.change.inc/images/home-animation/anim_17.jpg	1674.7559998184	2083.9350000024	16594	16320	200	image/jpeg	Image
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Show Details

Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
1102.534	9.335
1113.543	5.365
1121.12	6.336
1668.573	40.485
1709.075	78.728
1803.116	14.932
1834.062	243.953
2078.035	7.614
2088.906	14.648
2109.813	6.471
2118.956	10.225
2135.755	27.013
2177.919	22.182
2202.625	12.337
2215.319	6.037
2227.737	24.983
2255.327	25.928
2289.515	8.266
2370.79	10.195
2383.837	12.493
2412.071	30.135
2485.469	5.656
3055.726	8.628
3140.304	8.59

Show Details

Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Duurzaambedrijfsleven.nl should consider lazy-loading offscreen and hidden images.

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Duurzaambedrijfsleven.nl should consider minifying CSS files.

Minify JavaScript — Potential savings of 28 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Duurzaambedrijfsleven.nl should consider minifying JS files.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/scripts/TweenMax.min.js	54648	28977

Show Details

Remove unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Duurzaambedrijfsleven.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.

Remove unused JavaScript — Potential savings of 179 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/scripts/TweenMax.min.js	54648	43345
https://www.change.inc/_next/static/chunks/0b6f52122067e8e3e60d985e23e4522639ae9a03.d02fe79cf1d4c9fa499b.js	48797	35825
https://www.change.inc/_next/static/chunks/64e38b01d7cfebfb663be1ea3aa798e82911fb0f.2200251b08d4f08747af.js	43380	28973
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	52890	27833
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	60257	25649
https://www.change.inc/_next/static/chunks/492831799e42bb33613504b68d70b809b8439538.094e744b5ae825e1bd65.js	29311	21493

Show Details

Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.

Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.

Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.

Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Duurzaambedrijfsleven.nl should avoid multiple or unnecessary page redirects.

URL	Time Spent (Ms)
http://duurzaambedrijfsleven.nl/	190
https://www.change.inc/	0

Show Details

Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Duurzaambedrijfsleven.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.

Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

URL	Potential Savings (Bytes)
https://www.change.inc/_next/static/chunks/commons.09364c453b8662d7351c.js	56
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	53
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	45

Show Details

Diagnostics

Avoids enormous network payloads — Total size was 2,517 KiB
Large network payloads can cost users money and are linked to long load times.

URL	Transfer Size (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799472
https://www.change.inc/images/changemakers.jpg	445179
https://cdn.change.inc/images/article/41519/1280/f8141229-39fe-444d-b3ea-f6bac7d3e52b-alleycropping-in-france.jpg	111671
https://cdn.change.inc/images/article/41511/1280/ijmuiden-industrie.jpeg	69566
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	60257
https://www.change.inc/scripts/TweenMax.min.js	54648
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	52890
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	50799
https://www.change.inc/	43215
https://www.change.inc/_next/static/chunks/framework.2113c6061a2f456066a1.js	42309

Show Details

Uses efficient cache policy on static assets — 3 resources found
Duurzaambedrijfsleven.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.

URL	Cache TTL (Ms)	Transfer Size (Bytes)
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=e49df6ef-c04f-4b24-8f1c-4df223977c96&_expected_cookie=3b08d575e46baab88bba0709013e57ce	0	737
https://www.google-analytics.com/analytics.js	7200000	19451
https://snap.licdn.com/li.lms-analytics/insight.min.js	12959000	2169

Show Details

Avoid chaining critical requests — 4 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Duurzaambedrijfsleven.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

User Timing marks and measures — 4 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.

Name	Type	Start Time (Ms)	Duration (Ms)
Next.js-before-hydration	Measure	0	1863.735
Next.js-hydration	Measure	1863.735	184.44
beforeRender	Mark	1863.779
afterHydrate	Mark	2048.203

Show Details

JavaScript execution time — 0.4 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

URL	Total CPU Time (Ms)	Script Evaluation (Ms)	Script Parse (Ms)
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	245.519	240.195	3.384
https://www.change.inc/	136.787	6.672	1.406
Unattributable	120.925	2.085	0.184
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	68.228	32.023	1.008
https://www.change.inc/scripts/TweenMax.min.js	61.234	23.635	4.895
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	52.228	46.628	3.837

Show Details

Minimizes main-thread work — 0.9 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

Category	Time Spent (Ms)
Script Evaluation	536.66499999999
Other	173.973
Style & Layout	100.102
Script Parsing & Compilation	43.232
Rendering	37.5
Parse HTML & CSS	17.308
Garbage Collection	14.538

Show Details

All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.

Keep request counts low and transfer sizes small — 91 requests • 2,517 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.

Resource Type	Requests	Transfer Size (Bytes)
Total	91	2577836
Image	30	1816958
Script	29	447519
Other	28	230817
Document	2	44182
Font	2	38360
Stylesheet	0	0
Media	0	0
Third-party	18	151008

Show Details

Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.

Third-Party	Transfer Size (Bytes)	Main-Thread Blocking Time (Ms)
SHOW DETAILS	103689	0
SHOW DETAILS	20074	0
SHOW DETAILS	17464	0
SHOW DETAILS	4588	0
SHOW DETAILS	1571	0
SHOW DETAILS	746	0

Show Details

Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.

Element
Change Inc. staat voor verandering. Wij zijn het platform voor professionals di…

Show Details

Avoid large layout shifts — 3 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.

Element	CLS Contribution
Nieuws & Verhalen Changemakers Bedrijven	0.00064774246271488
Inloggen Sluit je aan	0.00038730992615941
Sluit je aan	0.00024689490120538

Show Details

Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.

Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Avoid long main-thread tasks — 1 long task found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.

URL	Start Time (Ms)	Duration (Ms)
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	1200	244

Show Details

Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.

Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.2 s
The time taken for the first image or text on the page to be rendered.

Speed Index — 2.0 s
The time taken for the page contents to be visibly populated.

Other

Max Potential First Input Delay — 140 ms
Users could experience a delay when interacting with the page.

First Meaningful Paint — 1.4 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 240 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Duurzaambedrijfsleven.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

URL	Transfer Size (Bytes)	Potential Savings (Ms)
https://www.change.inc/scripts/imagesloaded.pkgd.min.js	2482	70
https://www.change.inc/scripts/TweenMax.min.js	54648	190

Show Details

Serve images in next-gen formats — Potential savings of 502 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799197	514437

Show Details

Diagnostics

Avoid an excessive DOM size — 978 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.

Statistic	Element	Value
Total DOM Elements		978
Maximum DOM Depth	SHOW DETAILS	14
Maximum Child Elements	SHOW DETAILS	26

Show Details

Metrics

Largest Contentful Paint — 2.5 s
The timing of the largest text or image that is painted.

Opportunities

Properly size images — Potential savings of 1,229 KiB
Images can slow down the page's load time. Duurzaambedrijfsleven.nl should consider serving more appropriate-sized images.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799197	726155
https://www.change.inc/images/changemakers.jpg	444903	403648
https://cdn.change.inc/images/article/41519/1280/f8141229-39fe-444d-b3ea-f6bac7d3e52b-alleycropping-in-france.jpg	111227	79304
https://cdn.change.inc/images/article/41511/1280/ijmuiden-industrie.jpeg	69123	49284

Show Details

Reduce initial server response time — Root document took 740 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

URL	Time Spent (Ms)
https://www.change.inc/	744.625

Show Details

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of duurzaambedrijfsleven.nl. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.

The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.

`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.

Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.

No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.

`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.

`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.

ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.

`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.

Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.

`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.

`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.

ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.

`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.

`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.

`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.

`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.

Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.

`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.

Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.

Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.

List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.

Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.

`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.

`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Duurzaambedrijfsleven.nl may provide assistance to deaf or hearing-impaired users with captions on videos.

`<video>` elements contain a `<track>` element with `[kind="description"]`
Duurzaambedrijfsleven.nl may provide relevant information that dialogue cannot, by using audio descriptions.

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

Failing Elements
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img

Show Details

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Failing Elements
a
a
a
Aandacht voor duurzaamheid in de concept-partijprogramma’s van zeven grote part…
De toekomst van mobiliteit, deel 1: de elektrische auto
a
a
a
a
a
a
a

Show Details

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.

Failing Elements
Nieuws & Verhalen Changemakers Bedrijven
Nieuws & Verhalen Changemakers Bedrijven

Show Details

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.

Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.

Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.

The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.

User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.

Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.

Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.

Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.

Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.

HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that duurzaambedrijfsleven.nl should incorporate. This includes practices such as protecting pages with HTTPS.

Passing (14)
Failing (3)

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.

Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.

Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Avoids Application Cache
Application cache is deprecated and is no longer recommended.

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.

Name	Version
React
Next.js
GreenSock JS	2.1.2

Show Details

Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.

Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.

Insecure URL
http://duurzaambedrijfsleven.nl/

Show Details

Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.

Failing Anchors
Nomineer nu
Nomineer nu
a
a
a
a

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Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

URL	Description
https://www.google-analytics.com/g/collect?v=2&tid=G-FJV95EVSDD&gtm=2oebu0&_p=1871849549&sr=800x600&ul=en-us&cid=995847480.1610120035&_s=1&dl=https%3A%2F%2Fwww.change.inc%2F&dr=&dt=Platform%20voor%20duurzaamheid%20binnen%20het%20bedrijfsleven%20%7C%20Change%20Inc.&sid=1610120034&sct=1&seg=0&en=page_view&_fv=1&_ss=1	Failed to load resource: net::ERR_BLOCKED_BY_CLIENT.Inspector

Show Details

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for duurzaambedrijfsleven.nl. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of duurzaambedrijfsleven.nl on mobile screens.

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.

Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.

Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.

Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.

Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.

Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.

robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

Failing Elements
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img
img

Show Details

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of duurzaambedrijfsleven.nl. This includes details about web app manifests.

Installable

Web app manifest meets the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of duurzaambedrijfsleven.nl on mobile screens.

Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive on simulated mobile network at 13.9 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.

`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.

Insecure URL
http://duurzaambedrijfsleven.nl/

Show Details

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data

Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data

Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.

Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.

Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

Progressive Web App

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.change.inc/

Updated: 8th January, 2021

1.27 seconds

First Contentful Paint (FCP)

63%

33%

4%

0.02 seconds

First Input Delay (FID)

91%

6%

3%

Simulate loading on mobile

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for duurzaambedrijfsleven.nl. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.029
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Duurzaambedrijfsleven.nl should consider lazy-loading offscreen and hidden images.

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Duurzaambedrijfsleven.nl should consider minifying CSS files.

Remove unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Duurzaambedrijfsleven.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.

Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.

Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.

Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.

Initial server response time was short — Root document took 300 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

URL	Time Spent (Ms)
https://www.change.inc/	298.83

Show Details

Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Duurzaambedrijfsleven.nl should avoid multiple or unnecessary page redirects.

URL	Time Spent (Ms)
http://duurzaambedrijfsleven.nl/	630
https://www.change.inc/	0

Show Details

Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Duurzaambedrijfsleven.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.

Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

URL	Potential Savings (Bytes)
https://www.change.inc/_next/static/chunks/commons.09364c453b8662d7351c.js	56
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	53
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	45

Show Details

Diagnostics

Avoids enormous network payloads — Total size was 2,290 KiB
Large network payloads can cost users money and are linked to long load times.

URL	Transfer Size (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799472
https://www.change.inc/images/changemakers.jpg	445179
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	60257
https://www.change.inc/scripts/TweenMax.min.js	54648
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	52890
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	50799
https://www.change.inc/	43215
https://www.change.inc/_next/static/chunks/framework.2113c6061a2f456066a1.js	42309
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/bedrijven.json	40033
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/duurzaam-nieuws.json	30510

Show Details

Uses efficient cache policy on static assets — 3 resources found
Duurzaambedrijfsleven.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.

URL	Cache TTL (Ms)	Transfer Size (Bytes)
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ca696d03-b2bd-4857-acef-66e4e751c737&_expected_cookie=d5b2fdaf7d554ef291da01bc245a6e71	0	737
https://www.google-analytics.com/analytics.js	7200000	19452
https://snap.licdn.com/li.lms-analytics/insight.min.js	12938000	2169

Show Details

Avoid chaining critical requests — 4 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Duurzaambedrijfsleven.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

User Timing marks and measures — 4 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.

Name	Type	Start Time (Ms)	Duration (Ms)
Next.js-before-hydration	Measure	0	1029.215
Next.js-hydration	Measure	1029.215	126.895
beforeRender	Mark	1029.256
afterHydrate	Mark	1156.133

Show Details

JavaScript execution time — 1.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

URL	Total CPU Time (Ms)	Script Evaluation (Ms)	Script Parse (Ms)
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	616.052	608.812	3.792
https://www.change.inc/	417.844	17.928	4.084
Unattributable	343.612	5.272	0.528
https://www.change.inc/_next/static/chunks/pages/_app-50fe51cac0e4e3f67f6e.js	200.008	158.784	7.452
https://www.change.inc/scripts/TweenMax.min.js	149.548	68.408	17.052
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	137.312	120.028	12.888
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	87.624	69.98	14.124
https://www.google-analytics.com/analytics.js	79.668	67.488	4.676
https://www.change.inc/_next/static/chunks/commons.09364c453b8662d7351c.js	59.548	53.8	4.08

Show Details

All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.

Keep request counts low and transfer sizes small — 83 requests • 2,290 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.

Resource Type	Requests	Transfer Size (Bytes)
Total	83	2345149
Image	29	1635721
Script	27	430207
Other	24	197646
Document	1	43215
Font	2	38360
Stylesheet	0	0
Media	0	0
Third-party	17	149776

Show Details

Minimize third-party usage — Third-party code blocked the main thread for 40 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.

Third-Party	Transfer Size (Bytes)	Main-Thread Blocking Time (Ms)
SHOW DETAILS	103689	27.292
SHOW DETAILS	20075	11.964
SHOW DETAILS	16585	0
SHOW DETAILS	4539	0
SHOW DETAILS	1556	0
SHOW DETAILS	746	0

Show Details

Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.

Element
Change Inc. staat voor verandering. Wij zijn het platform voor professionals di…

Show Details

Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.

Element	CLS Contribution
Change Inc. staat voor verandering. Wij zijn het platform voor professionals di…	0.01424602213122
h1	0.010110080222156
Sluit je aan	0.0017269118656312
Inloggen Sluit je aan	0.0014332888119825
Changemakers	0.0010509984013015

Show Details

Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.

Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Avoid long main-thread tasks — 9 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.

URL	Start Time (Ms)	Duration (Ms)
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	4683	611
https://www.change.inc/scripts/TweenMax.min.js	7050	136
https://www.change.inc/scripts/TweenMax.min.js	7186	111
https://www.change.inc/_next/static/chunks/pages/_app-50fe51cac0e4e3f67f6e.js	4590	93
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	5475	84
https://www.google-analytics.com/analytics.js	5404	71
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	5338	66
https://www.change.inc/_next/static/chunks/commons.09364c453b8662d7351c.js	2730	60
Unattributable	630	58

Show Details

Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.

Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.

URL	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://duurzaambedrijfsleven.nl/	0	134.183999995	284	0	301	text/html
https://www.change.inc/	134.73199997679	432.56499999552	43215	209090	200	text/html	Document
https://www.change.inc/_next/static/chunks/main-5529b36164942817d02b.js	443.52799997432	633.39599999017	6624	17117	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/webpack-eb080e3f091731f228fb.js	443.68399999803	632.7089999977	1138	1539	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/framework.2113c6061a2f456066a1.js	443.93499998841	739.52399997506	42309	130263	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/commons.09364c453b8662d7351c.js	444.17699999758	636.64899999276	13446	40034	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	444.40199999372	831.2009999936	60257	208621	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/pages/_app-50fe51cac0e4e3f67f6e.js	444.78199997684	638.83799998439	9505	26112	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/b44b70614269cacb849fa4905be40c844ec85b89.36a7cd8cffd5993704d6.js	444.98899998143	749.84899998526	22318	82280	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/5729e7a44770cfee897151bd970f1dc889d4fce5.286dbc9d13c03698de99.js	445.2459999884	645.56299999822	7858	25488	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/5dd7aadcab938134a5d4d5d68690ede0bd3afe1a.66459391f730f667290f.js	445.42199998978	637.31499999994	7142	16739	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/d5cdd0bb31c24e9253cfa6ea7879c3b456a5aa76.40aad1230930cd77259c.js	445.56299998658	637.97199999681	3958	8639	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	445.66699999268	729.26399999415	14237	53277	200	application/javascript	Script
https://www.change.inc/scripts/imagesloaded.pkgd.min.js	447.02399999369	637.67599998391	2482	8305	200	application/javascript	Script
https://www.change.inc/scripts/TweenMax.min.js	447.25599998492	845.06399999373	54648	255297	200	application/javascript	Script
https://www.change.inc/images/uitgelicht_1.jpg	840.88999999221	1069.8019999836	12402	12128	200	image/jpeg	Image
https://www.change.inc/images/uitgelicht_2.jpg	854.50699998182	1086.5919999778	30363	30089	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_1.jpg	878.42199997976	1185.5779999751	18152	17878	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_2.jpg	878.55999998283	1093.606999988	15051	14777	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_3.jpg	878.76799999503	1103.5819999815	21852	21578	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_4.jpg	878.90899999184	1185.9980000008	18196	17922	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_5.jpg	879.01599999168	1094.9649999966	16481	16207	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_6.jpg	879.4249999919	1106.9159999897	13110	12836	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_7.jpg	879.56899998244	1268.5029999993	12861	12587	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_8.jpg	879.76699997671	1188.6669999803	19401	19127	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_9.jpg	879.98999998672	1200.8369999821	16791	16517	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_10.jpg	880.29399997322	1095.7159999816	13382	13108	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_11.jpg	880.4929999751	1104.3309999804	13483	13209	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_12.jpg	880.67600000068	1190.9149999847	16985	16711	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_13.jpg	880.86699999985	1196.964999981	17094	16820	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_14.jpg	881.10400000005	1188.1899999862	15737	15463	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_15.jpg	881.2709999911	1099.160999991	13991	13717	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_16.jpg	881.43999999738	1189.0149999817	17996	17722	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_17.jpg	881.58899999689	1201.93499999	16594	16320	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_18.jpg	881.75000000047	1192.8389999957	15446	15172	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_19.jpg	882.048999978	1189.9139999878	14900	14626	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_20.jpg	882.32499998412	1190.6689999742	14948	14674	200	image/jpeg	Image
https://www.change.inc/images/home-animation/anim_21.jpg	882.50399997924	1191.4799999795	14909	14635	200	image/jpeg	Image
https://www.change.inc/images/changemakers.jpg	882.69199998467	1628.6609999952	445179	444903	200	image/jpeg	Image
https://www.change.inc/images/companies-netherlands.png	882.91299997945	1097.1809999901	9462	9190	200	image/png	Image
https://www.change.inc/images/mobile-and-tablet.png	883.04499999504	1660.7519999961	799472	799197	200	image/png	Image
https://www.change.inc/_next/static/THz-Qm9dL2kHYXRDoNikb/_buildManifest.js	883.20999999996	1198.1640000013	1779	4394	200	application/javascript	Script
https://www.change.inc/_next/static/THz-Qm9dL2kHYXRDoNikb/_ssgManifest.js	883.35799999186	1100.7259999751	665	695	200	application/javascript	Script
https://www.googletagmanager.com/gtm.js?id=GTM-MS58Q3J	883.4799999895	897.89500000188	50799	148520	200	application/javascript	Script
https://www.change.inc/fonts/bebas-neue/bebas-neue-bold.woff2	894.93399998173	1193.4209999745	14202	13928	200	font/woff2	Font
https://www.change.inc/fonts/times/times-roman.woff2	895.1169999782	1193.7909999979	24158	23884	200	font/woff2	Font
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	1206.2609999848	1219.9939999846	52890	136566	200	application/javascript	Script
https://www.google-analytics.com/analytics.js	1208.7029999821	1212.3209999991	19452	47051	200	text/javascript	Script
https://snap.licdn.com/li.lms-analytics/insight.min.js	1211.4109999966	1287.7529999823	2169	4322	200	application/x-javascript	Script
https://www.googleadservices.com/pagead/conversion_async.js	1212.114999973	1303.2509999757	13391	31077	200	text/javascript	Script
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/bedrijven.json	1261.5939999814	1485.2939999837	40033	149785	200	application/json	Fetch
https://www.change.inc/_next/static/chunks/b44b70614269cacb849fa4905be40c844ec85b89.36a7cd8cffd5993704d6.js	1262.2369999881	1393.9919999975	22318	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/5729e7a44770cfee897151bd970f1dc889d4fce5.286dbc9d13c03698de99.js	1262.5609999814	1385.266999976	7852	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/64e38b01d7cfebfb663be1ea3aa798e82911fb0f.2200251b08d4f08747af.js	1262.9439999873	1390.3999999748	11213	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/pages/bedrijven-fc6703cdd55459372e5e.js	1263.3280000009	1390.8339999907	1081	0	200	application/javascript	Other
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/changemakers.json	1263.9589999744	1381.5269999905	9316	75126	200	application/json	Fetch
https://www.change.inc/_next/static/chunks/d5cdd0bb31c24e9253cfa6ea7879c3b456a5aa76.40aad1230930cd77259c.js	1264.3989999779	1392.2199999797	3958	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/0b6f52122067e8e3e60d985e23e4522639ae9a03.d02fe79cf1d4c9fa499b.js	1264.6739999764	1396.9459999935	16094	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/pages/changemakers-d9d02cc7a1d081a2495a.js	1264.9369999999	1391.8659999908	1078	0	200	application/javascript	Other
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/duurzaam-nieuws.json	1265.0909999793	1490.1620000019	30510	93761	200	application/json	Fetch
https://www.change.inc/_next/static/chunks/5dd7aadcab938134a5d4d5d68690ede0bd3afe1a.66459391f730f667290f.js	1265.6599999755	1392.9959999805	7142	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/492831799e42bb33613504b68d70b809b8439538.094e744b5ae825e1bd65.js	1265.9459999995	1394.4029999839	6914	0	200	application/javascript	Other
https://www.change.inc/_next/static/chunks/pages/duurzaam-nieuws-68ce3864a8d7c4c41544.js	1266.3029999821	1395.7079999964	4261	0	200	application/javascript	Other
https://www.change.inc/_next/data/THz-Qm9dL2kHYXRDoNikb/index.json	1266.6989999998	1387.0349999925	14546	45026	200	application/json	Fetch
https://www.change.inc/_next/static/chunks/pages/index-c494dca7cd576d1791e7.js	1267.2399999865	1396.1949999793	14237	0	200	application/javascript	Other
https://www.google-analytics.com/j/collect?v=1&_v=j87&a=228638564&t=pageview&_s=1&dl=https%3A%2F%2Fwww.change.inc%2F&ul=en-us&de=UTF-8&dt=Platform%20voor%20duurzaamheid%20binnen%20het%20bedrijfsleven%20%7C%20Change%20Inc.&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=YEBAAEABAAAAAC~&jid=1399719772&gjid=1830392522&cid=1096974930.1610120056&tid=UA-31696961-1&_gid=2128580912.1610120056&_r=1&gtm=2wgbu0MS58Q3J&cd9=4b74e8e5-54c6-40eb-86c8-8f1626bad896&cd10=2021-01-08T07%3A34%3A15.522-08%3A00&cd8=1096974930.1610120056&z=1634202898	1285.9179999796	1288.6749999889	623	2	200	text/plain	XHR
https://www.google-analytics.com/g/collect?v=2&tid=G-FJV95EVSDD&gtm=2oebu0&_p=228638564&sr=360x640&ul=en-us&cid=1096974930.1610120056&_s=1&dl=https%3A%2F%2Fwww.change.inc%2F&dr=&dt=Platform%20voor%20duurzaamheid%20binnen%20het%20bedrijfsleven%20%7C%20Change%20Inc.&sid=1610120055&sct=1&seg=0&en=page_view&_fv=1&_ss=1	1306.3889999758	1312.0039999776	0	0	-1		Other
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j87&tid=UA-31696961-1&cid=1096974930.1610120056&jid=1399719772&gjid=1830392522&_gid=2128580912.1610120056&_u=YEBAAEAAAAAAAC~&z=1678263096	1311.3249999878	1314.6719999786	695	1	200	text/plain	XHR
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=1258212&time=1610120055630&url=https%3A%2F%2Fwww.change.inc%2F	1315.3089999978	1346.2099999888	949	0	302
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/983188097/?random=1610120055635&cv=9&fst=1610120055635&num=1&guid=ON&resp=GooglemKTybQhCsO&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2wgbu0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.change.inc%2F&tiba=Platform%20voor%20duurzaamheid%20binnen%20het%20bedrijfsleven%20%7C%20Change%20Inc.&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4	1322.43499998	1330.5619999883	2499	1624	200	text/javascript	Script
https://www.google.com/pagead/1p-user-list/983188097/?random=1610120055635&cv=9&fst=1610118000000&num=1&guid=ON&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2wgbu0&sendb=1&frm=0&url=https%3A%2F%2Fwww.change.inc%2F&tiba=Platform%20voor%20duurzaamheid%20binnen%20het%20bedrijfsleven%20%7C%20Change%20Inc.&async=1&fmt=3&is_vtc=1&random=1772430569&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y	1333.0109999806	1356.3389999908	746	42	200	image/gif	Image
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=1258212&time=1610120055630&url=https%3A%2F%2Fwww.change.inc%2F&cookiesTest=true	1346.4039999817	1378.9389999874	793	0	302
https://www.linkedin.com/px/li_sync?redirect=https%3A%2F%2Fpx.ads.linkedin.com%2Fcollect%3Fv%3D2%26fmt%3Djs%26pid%3D1258212%26time%3D1610120055630%26url%3Dhttps%253A%252F%252Fwww.change.inc%252F%26cookiesTest%3Dtrue%26liSync%3Dtrue	1379.1259999853	1411.9910000009	2370	0	302
https://www.change.inc/_next/static/chunks/64e38b01d7cfebfb663be1ea3aa798e82911fb0f.2200251b08d4f08747af.js	1398.698999983	1502.1549999947	11213	43380	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/pages/bedrijven-fc6703cdd55459372e5e.js	1398.9639999927	1502.6849999849	1081	1431	200	application/javascript	Script
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=1258212&time=1610120055630&url=https%3A%2F%2Fwww.change.inc%2F&cookiesTest=true&liSync=true	1412.2989999887	1450.4639999941	560	0	302
https://www.change.inc/_next/static/chunks/492831799e42bb33613504b68d70b809b8439538.094e744b5ae825e1bd65.js	1415.7529999793	1519.2899999965	6914	29311	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/pages/duurzaam-nieuws-68ce3864a8d7c4c41544.js	1416.5579999972	1517.5549999985	4261	11171	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/0b6f52122067e8e3e60d985e23e4522639ae9a03.d02fe79cf1d4c9fa499b.js	1416.8499999796	1518.6719999765	16094	48797	200	application/javascript	Script
https://www.change.inc/_next/static/chunks/pages/changemakers-d9d02cc7a1d081a2495a.js	1417.2629999812	1519.598999992	1078	1416	200	application/javascript	Script
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ca696d03-b2bd-4857-acef-66e4e751c737	1450.7400000002	1489.6679999947	819	0	302
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ca696d03-b2bd-4857-acef-66e4e751c737&_expected_cookie=d5b2fdaf7d554ef291da01bc245a6e71	1489.831999992	1516.6339999996	737	43	200	image/gif	Image
	2683.1609999936	2683.2309999736	0	37	200	image/gif	Image
https://cdn.change.inc/images/article/41519/1280/f8141229-39fe-444d-b3ea-f6bac7d3e52b-alleycropping-in-france.jpg	2683.3309999784		0	0	-1		Image

Show Details

Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
472.207	6.553
890.972	33.876
924.867	55.352
991.038	14.887
1005.949	5.003
1010.972	23.334
1040.268	152.817
1193.258	5.811
1204.444	5.059
1215.028	10.886
1233.538	16.48
1258.684	15.032
1275.851	14.59
1294.996	9.864
1305.25	17.787
1324.905	20.938
1353.345	5.582
1541.064	5.334
1556.97	5.07
1563.846	10.873
2716.713	7.272

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Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Metrics

First Contentful Paint — 3.9 s
The time taken for the first image or text on the page to be rendered.

Time to Interactive — 6.7 s
The time taken for the page to become fully interactive.

Total Blocking Time — 510 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 6.1 s
The time taken for the page's main thread to be quiet enough to handle input.

Estimated Input Latency — 60 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive duurzaambedrijfsleven.nl as laggy when the latency is higher than 0.05 seconds.

Opportunities

Eliminate render-blocking resources — Potential savings of 760 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Duurzaambedrijfsleven.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

URL	Transfer Size (Bytes)	Potential Savings (Ms)
https://www.change.inc/scripts/imagesloaded.pkgd.min.js	2482	180
https://www.change.inc/scripts/TweenMax.min.js	54648	1080

Show Details

Minify JavaScript — Potential savings of 28 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Duurzaambedrijfsleven.nl should consider minifying JS files.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/scripts/TweenMax.min.js	54648	28977

Show Details

Remove unused JavaScript — Potential savings of 178 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/scripts/TweenMax.min.js	54648	43597
https://www.change.inc/_next/static/chunks/0b6f52122067e8e3e60d985e23e4522639ae9a03.d02fe79cf1d4c9fa499b.js	48797	34746
https://www.googletagmanager.com/gtag/js?id=G-FJV95EVSDD&l=dataLayer&cx=c	52890	27833
https://www.change.inc/_next/static/chunks/64e38b01d7cfebfb663be1ea3aa798e82911fb0f.2200251b08d4f08747af.js	43380	25783
https://www.change.inc/_next/static/chunks/bb16a8f45a7fd0a274e659d8b75c30f5115837bd.db4480060a2e686c881a.js	60257	25649
https://www.change.inc/_next/static/chunks/492831799e42bb33613504b68d70b809b8439538.094e744b5ae825e1bd65.js	29311	24578

Show Details

Diagnostics

Avoid an excessive DOM size — 974 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.

Statistic	Element	Value
Total DOM Elements		974
Maximum DOM Depth	SHOW DETAILS	14
Maximum Child Elements	SHOW DETAILS	23

Show Details

Minimize main-thread work — 2.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

Category	Time Spent (Ms)
Script Evaluation	1354.5
Other	397.892
Style & Layout	267.144
Script Parsing & Compilation	143.24
Rendering	88.404
Parse HTML & CSS	70.304
Garbage Collection	58.06

Show Details

Metrics

Speed Index — 5.9 s
The time taken for the page contents to be visibly populated.

Largest Contentful Paint — 7.6 s
The timing of the largest text or image that is painted.

Other

Max Potential First Input Delay — 370 ms
Users could experience a delay when interacting with the page.

First Meaningful Paint — 4.7 s
The time taken for the primary content of the page to be rendered.

First Contentful Paint (3G) — 7987 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Properly size images — Potential savings of 1,047 KiB
Images can slow down the page's load time. Duurzaambedrijfsleven.nl should consider serving more appropriate-sized images.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799197	704285
https://www.change.inc/images/changemakers.jpg	444903	368262

Show Details

Serve images in next-gen formats — Potential savings of 502 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.change.inc/images/mobile-and-tablet.png	799197	514437