Run 3 summary

Summary

Metric	Value
Page metrics
Performance score	94
Total page size	843.1 KB
Requests	23
Timing metrics
TTFB	296 ms
First Paint	425 ms
Fully Loaded	575 ms
Google Web Vitals
TTFB	296 ms
First Contentful Paint (FCP)	425 ms
Largest Contentful Paint (LCP)	425 ms
Cumulative Layout Shift (CLS)	0.01
CPU metrics
CPU long tasks	1
CPU last long task happens at	415 ms
Visual Metrics
First Visual Change	433 ms
Speed Index	483 ms
Visual Complete 85%	500 ms
Visual Complete 99%	567 ms
Last Visual Change	567 ms

Waterfall

Video

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

0.5 sCPU Long Task duration 69 msFirst Contentful Paint 425 msLCP <IMG> 425 msFirst Visual Change 433 msVisual Complete 85% 500 ms

0.6 sLayout Shift 0.00001 516 msDOM Content Loaded Time 521 msLayout Shift 0.01458 551 msPage Load Time 562 msLast Visual Change 567 msVisual Complete 95% 567 msVisual Complete 99% 567 msLargest Image 567 msFully Loaded 575 ms

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 8.0.2.

Coach score

• Total score 90
• Performance score 94
• Privacy score 83
• Best practice score 85

Performance advice (94)

Show/hide details

Title	Advice	Score
Avoid slowing down the critical rendering path (avoidRenderBlocking)	The page has 6 blocking requests and 2 in body parser blocking (2 JavaScript and 6 CSS).	80
Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS for really fast rendering and a short rendering path.
Offenders: https://www.proantic.com/magazine/wp-content/themes/olsen-light/js/scripts.js,qv....jm.YPk7tHUcXX.js https://stats.wp.com/e-202440.js
Inline CSS for faster first render (inlineCss)	The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens.	95
Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.
Avoid CPU Long Tasks (longTasks)	The page has 1 CPU long task with the total of 69 ms. The total blocking time is 0 ms and 1 long task before first contentful paint with total time of 69 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.	80
Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.
Offenders: unknown
Avoid Frontend single point of failures (spof)	The page has 1 request inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.	90
Description: A page can be stopped from loading in the browser if a single JavaScript, CSS, and in some cases a font, couldn't be fetched or is loading really slowly (the white screen of death). That is a scenario you really want to avoid. Never load 3rd-party components synchronously inside of the head tag.
Offenders: https://fonts.googleapis.com/css...oogleapis.com/css
Avoid extra requests by setting cache headers (cacheHeaders)	The page has 1 request that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 177 B the next access.	90
Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.
Offenders: https://pixel.wp.com/g.gif...ixel.wp.com/g.gif
Long cache headers is good (cacheHeadersLong)	The page has 11 requests that have a shorter cache time than 30 days (but still a cache time).	89
Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
Offenders: https://www.proantic.com/magazine/wp-includes/css/dist/block-library/A.style.min...cf.wKYjcZoIuW.css https://www.proantic.com/magazine/wp-includes/js/mediaelement/mediaelementplayer...er-legacy.min.css https://www.proantic.com/magazine/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.2 https://fonts.googleapis.com/css...oogleapis.com/css https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...cf.B48meyexaI.css https://www.proantic.com/magazine/wp-content/themes/olsen-light/A.style.css,qver...cf.yHt3onmplW.css https://www.proantic.com/magazine/wp-content/plugins/jetpack/css/jetpack.css?ver=13.8.1 https://www.proantic.com/magazine/wp-content/themes/olsen-light/js/scripts.js,qv....jm.YPk7tHUcXX.js https://www.proantic.com/magazine/wp-content/uploads/2023/12/proantic_ico_256.png https://www.proantic.com/magazine/wp-includes/js/wp-emoji-release.min.js?ver=6.6.2 https://www.proantic.com/favicon.ico
Avoid too many fonts (fewFonts)	The page has 5 font requests. Do you really need them? What value does the fonts give the user?	50
Description: How many fonts do you need on a page for the user to get the message? Fonts can slow down the rendering of content, try to avoid loading too many of them because worst case it can make the text invisible until they are loaded (FOIT—flash of invisible text), best case they will flicker the text content when they arrive.
Offenders: https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...olsen-icons.woff2 https://fonts.gstatic.com/s/lato/v24/S6uyw4BMUTPHjx4wXg.woff2 https://fonts.gstatic.com/s/lora/v35/0QIvMX1D_JOuMwr7Iw.woff2 https://fonts.gstatic.com/s/lato/v24/S6u9w4BMUTPHh6UVSwiPGQ.woff2 https://fonts.gstatic.com/s/lato/v24/S6u8w4BMUTPHjxsAXC-q.woff2
Make each CSS response small (optimalCssSize)	https://www.proantic.com/magazine/wp-includes/css/dist/block-library/A.style.min.css,qver=6.6.2.pagespeed.cf.wKYjcZoIuW.css size is 15.6 kB (15566) and that is bigger than the limit of 14.5 kB. https://www.proantic.com/magazine/wp-content/plugins/jetpack/css/jetpack.css?ver=13.8.1 size is 20.3 kB (20264) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.	80
Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier.
Offenders: URL Transfer size Content size https://www.proantic.com/magazine/wp-includes/css/dist/block-library/A.style.min...cf.wKYjcZoIuW.css 15.2 KB 109.7 KB https://www.proantic.com/magazine/wp-content/plugins/jetpack/css/jetpack.css?ver=13.8.1 19.8 KB 106.6 KB
Don't use private headers on static content (privateAssets)	The page has 1 request with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.	90
Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.
Offenders: https://fonts.googleapis.com/css...oogleapis.com/css

Best practice advice (85)

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Title	Advice	Score
Avoid too many third party requests (thirdParty)	The page do 48% requests to third party domains (11 requests and 732.7 kB). First party is 12 requests and 130.6 kB. The page transfer more bytes from third party domains (732.7 kB) then first party (130.6 kB). The regex .*proantic.* was used to calculate first/third party requests.	0
Description: Do not load most of your content from third party URLs.
Avoid unnecessary headers (unnecessaryHeaders)	There are 21 responses that sets both a max-age and expires header. There are 23 responses that sets a server header.	56
Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
Offenders: https://www.proantic.com/magazine/ https://www.proantic.com/magazine/wp-includes/css/dist/block-library/A.style.min...cf.wKYjcZoIuW.css https://www.proantic.com/magazine/wp-includes/css/dist/block-library/A.style.min...cf.wKYjcZoIuW.css https://www.proantic.com/magazine/wp-includes/js/mediaelement/mediaelementplayer...er-legacy.min.css https://www.proantic.com/magazine/wp-includes/js/mediaelement/mediaelementplayer...er-legacy.min.css https://www.proantic.com/magazine/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.2 https://www.proantic.com/magazine/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.2 https://fonts.googleapis.com/css...oogleapis.com/css https://fonts.googleapis.com/css...oogleapis.com/css https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...cf.B48meyexaI.css https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...cf.B48meyexaI.css https://www.proantic.com/magazine/wp-content/themes/olsen-light/A.style.css,qver...cf.yHt3onmplW.css https://www.proantic.com/magazine/wp-content/themes/olsen-light/A.style.css,qver...cf.yHt3onmplW.css https://www.proantic.com/magazine/wp-content/plugins/jetpack/css/jetpack.css?ver=13.8.1 https://www.proantic.com/magazine/wp-content/plugins/jetpack/css/jetpack.css?ver=13.8.1 https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-m...66f666bbd3027.jpg https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-m...66f666bbd3027.jpg https://www.proantic.com/magazine/wp-content/themes/olsen-light/js/scripts.js,qv....jm.YPk7tHUcXX.js https://www.proantic.com/magazine/wp-content/themes/olsen-light/js/scripts.js,qv....jm.YPk7tHUcXX.js https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/455759684...23235974059_n.jpg https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/455759684...23235974059_n.jpg https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-28-100334.png https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-28-100334.png https://www.proantic.com/magazine/wp-content/uploads/2023/12/proantic_ico_256.png https://www.proantic.com/magazine/wp-content/uploads/2023/12/proantic_ico_256.png https://stats.wp.com/e-202440.js https://stats.wp.com/e-202440.js https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-22-140452.png https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-22-140452.png https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...olsen-icons.woff2 https://www.proantic.com/magazine/wp-content/themes/olsen-light/vendor/olsen-ico...olsen-icons.woff2 https://fonts.gstatic.com/s/lato/v24/S6uyw4BMUTPHjx4wXg.woff2 https://fonts.gstatic.com/s/lato/v24/S6uyw4BMUTPHjx4wXg.woff2 https://fonts.gstatic.com/s/lora/v35/0QIvMX1D_JOuMwr7Iw.woff2 https://fonts.gstatic.com/s/lora/v35/0QIvMX1D_JOuMwr7Iw.woff2 https://fonts.gstatic.com/s/lato/v24/S6u9w4BMUTPHh6UVSwiPGQ.woff2 https://fonts.gstatic.com/s/lato/v24/S6u9w4BMUTPHh6UVSwiPGQ.woff2 https://fonts.gstatic.com/s/lato/v24/S6u8w4BMUTPHjxsAXC-q.woff2 https://fonts.gstatic.com/s/lato/v24/S6u8w4BMUTPHjxsAXC-q.woff2 https://pixel.wp.com/g.gif...ixel.wp.com/g.gif https://www.proantic.com/magazine/wp-includes/js/wp-emoji-release.min.js?ver=6.6.2 https://www.proantic.com/magazine/wp-includes/js/wp-emoji-release.min.js?ver=6.6.2 https://www.proantic.com/favicon.ico https://www.proantic.com/favicon.ico

Privacy advice (83)

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Title	Advice	Score
Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader)	Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download.	0
Description: Content Security Policy is delivered via a HTTP response header, and defines approved sources of content that the browser may load. It can be an effective countermeasure to Cross Site Scripting (XSS) attacks and is also widely supported and usually easily deployed. https://scotthelme.co.uk/content-security-policy-an-introduction/.
Offenders: https://www.proantic.com/magazine/
Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader)	Set a referrer-policy header to make sure you do not leak user information.	0
Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/.
Offenders: https://www.proantic.com/magazine/
Do not share user data with third parties. (thirdPartyPrivacy)	The page has 48% requests that are 3rd party (11 requests with a size of 732.7 kB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 5 survelliance requests and uses 1 survelliance tool. The page do 4 hosting requests and uses 1 hosting tool. The page do 2 analytics requests and uses 1 analytics tool.	0
Description: Using third party requests shares user information with that third party. Please avoid that! The project https://github.com/patrickhulce/third-party-web is used to categorize first/third party requests.
Offenders: https://fonts.googleapis.com/css...oogleapis.com/css https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-m...66f666bbd3027.jpg https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/455759684...23235974059_n.jpg https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-28-100334.png https://stats.wp.com/e-202440.js https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/Capture-d...-09-22-140452.png https://fonts.gstatic.com/s/lato/v24/S6uyw4BMUTPHjx4wXg.woff2 https://fonts.gstatic.com/s/lora/v35/0QIvMX1D_JOuMwr7Iw.woff2 https://fonts.gstatic.com/s/lato/v24/S6u9w4BMUTPHh6UVSwiPGQ.woff2 https://fonts.gstatic.com/s/lato/v24/S6u8w4BMUTPHjxsAXC-q.woff2 https://pixel.wp.com/g.gif...ixel.wp.com/g.gif

Page info

Page info
Title	Le Magazine de Proantic - Magazine d'art et expositions
Generator	WordPress 6.6.2
Width	1350
Height	8972
DOM elements	473
Avg DOM depth	13
Max DOM depth	18
Iframes	0
Script tags	6
Local storage	0 b
Session storage	94 B
Network Information API	4g

Resource Hints
dns-prefetch
https://stats.wp.com/
https://v0.wordpress.com/
https://i0.wp.com/

Technologies used to build the page.

Data collected using Wappalyzerversion 6.10.66.  Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyser find more information about technologies used.

Technology	Confidence	Category
WordPress 6.6.2	100	CMS Blogs
MySQL	100	Databases
PHP	100	Programming languages
Nginx	100	Web servers Reverse proxies
HSTS	100	Security
Google PageSpeed 1.13.35.2	100	Caching Web server extensions Performance
HTTP/3	100	Miscellaneous

Data collected using Third Party Web 0.24.0

Cdn
Google Fonts
Survelliance
Google Fonts
Hosting
WordPress
Analytics
WordPress Site Stats

Visual Metrics

Browser Metrics

Largest Contentful Paint

When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

Element type	IMG
Element/tag	<img width="720" height="471" src="https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-main-66f666bbd3027.jpg?resize=720%2C471&amp;ssl=1" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="" itemprop="image" decoding="async" fetchpriority="high" data-attachment-id="17100" data-permalink="https://www.proantic.com/magazine/paire-de-coffrets-marquetes-estampilles-hache-a-grenoble/1407731-main-66f666bbd3027/" data-orig-file="https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-main-66f666bbd3027.jpg?fit=1200%2C765&amp;ssl=1" data-orig-size="1200,765" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}" data-image-title="Paire de coffrets marquetés estampillés Hache à Grenoble. (c) Serignan Antiquités, Proantic" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-main-66f666bbd3027.jpg?fit=300%2C191&amp;ssl=1" data-large-file="https://i0.wp.com/www.proantic.com/magazine/wp-content/uploads/2024/09/1407731-main-66f666bbd3027.jpg?fit=665%2C424&amp;ssl=1" tabindex="0" role="button">
Render time	425 ms
Elements that needed recalculate style before LCP	536
Time spent in recalculate style before LCP	25.889 ms
Load time	375 ms
URL	https://i0.wp.com/ww...66f666bbd3027.jpg
Size (width*height)	141882
DOM path
div#page > div:eq(1) > div > div > div#site-content > div > div:eq(0) > main#content > div:eq(0) > div#inner-content > article#entry-17098 > div:eq(2) > a > img> div#page > div:eq(1) > div > div > div#site-content > div > div:eq(0) > main#content > div:eq(0) > div#inner-content > article#entry-17098 > div:eq(2) > a > img>

The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.

The Largest Contentful Paint API highlighted this image as a part of the LCP.

Detected Cumulative Layout Shift

0.01459 cumulative layout shift collected from the Cumulative Layout Shift API.

These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.

Score	HTML Element
0.01458	,<p class="tagline"></p>,<div class="site-bar"></div>,<div id="site-content"></div>
body > div#page > div:eq(1) > div > div > header#masthead > div:eq(0) > div > a > #text,body > div#page > div:eq(1) > div > div > header#masthead > div:eq(0) > p,body > div#page > div:eq(1) > div > div > header#masthead > div:eq(1),body > div#page > div:eq(1) > div > div > div#site-content
0.00001	<button class="searchsubmit" type="submit"></button>
body > div#page > div:eq(1) > div > div > div#site-content > div > div:eq(1) > div > aside#search-4 > form > div > button

The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

Server timings

There are no Server Timings.

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

CDP Performance

Visual Elements

PageXray

How the page is built.

Largest assets on the page (by transfer size)

Requests and sizes per content type

Data per domain

Expires and last modified statistics

Requests loaded after onLoad event

Included requests done after load event end.

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Render blocking requests

Render blocking information directly from Chrome.

Render information

CPU

Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.

Long Tasks

Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.

CPU last long task happened at 415 ms

Individual Long Tasks

CPU time spent

Calculated using Tracium.

Third party

Third party requests categorised by Third party web version 0.24.0.

Third party requests and tools

First party requests and sizes per content type

Calculated using .*proantic.* (use --firstParty to configure).

Third party requests and sizes per content type

Screenshots

afterPageCompleteCheck.png

layoutShift.png

largestContentfulPaint.png

Axe

Axe is an accessibility testing engine for websites and other HTML-based user interfaces. Tested using axe-core version 4.7.2. Read more about axe-core .

Violations