Tested 2026-10-13 01:31:06 using Chrome 152.0.7977.64 (runtime settings)
The red band on the timeline marks when the main thread was busy with long tasks: moments when the page could not paint or respond, however the video looks.
Download videoUse --filmstrip.showAll to show all filmstrips.
Click a frame to seek the video to that moment. The dot marks frames where the page changed visually.
How smoothly Chrome delivered frames to the screen during the test. Dropped counts only frames Chrome flags as affecting smoothness. On mostly-static pages the longest gap includes idle time where there was simply nothing to draw.
Rendering was not meaningfully delayed. First paint landed at 480 ms on a 81 ms first byte; the 8 render-blocking requests were done by 307 ms and the remaining ~173 ms is style, layout and web-font loading (63 ms of it measured style recalculation). The largest paint followed at 1.192 s. Note www-player.css finished at 695 ms, between first and largest paint.
Style the browser had to recalculate before it could paint: many elements or a lot of time spent here points at expensive CSS on the critical rendering path. The recalculation count and the largest single one tell the two problems apart: one massive style change touching most of the page (few recalculations, the largest close to the total) needs different medicine than thousands of tiny ones (many recalculations, each tiny).
One large recalculation dominates. Restyling 1 394 elements cost 63 ms before the page painted (13.1 % of the time to First Contentful Paint), and a single recalculation of 705 elements accounts for 36 ms of it. Look for one class or inline-style change on a large container near the top of the DOM that restyles the whole subtree at once. The changes driving it are listed under Style invalidations below.
The recalculation work before first paint is 13.1 % of the time to First Contentful Paint.
Blocking requests delay both paints: the browser renders nothing until they arrive, so they push First Contentful Paint and everything after it, including the largest paint (LCP). Requests that block the parser inside the body stall everything after them in the document. Load JavaScript with defer or async, and keep non-critical CSS off the critical path with media attributes. Bars show when each request loaded on a clock that runs to the last paint (the dashed line is FCP, the clock ends at LCP); the gap after the bars is style and layout work. Web fonts are context, not blockers: text renders invisible or in a fallback face while they load, so a font finishing after a paint is the classic reason text changed late.
| Request | When it loaded | Transfer | Download |
|---|---|---|---|
document | 77 ms | 27.4 KB | 76 ms |
www-player.cssblocking | 496 ms | 57.9 KB | 496 ms |
213 ms | 40.5 KB | 213 ms | |
m=root,baseblocking | 99 ms | 2.9 KB | 99 ms |
64 ms | 19.0 KB | 64 ms | |
55 ms | 8.9 KB | 55 ms | |
54 ms | 517 B | 54 ms | |
52 ms | 892 B | 52 ms | |
50 ms | 624 B | 50 ms | |
| 6 more requests | all done by 1.790 s | 845.4 KB | |
LCP resource | 851 ms | 25.5 KB | 851 ms |
55 ms | 18.5 KB | 55 ms | |
50 ms | 19.2 KB | 50 ms | |
1.070 s · past LCP | 378.5 KB | 1.070 s | |
0298 ms596 ms894 msFCP 480 msLCP 1.192 s |
Why the browser had to recalculate style and layout: every DOM/style change invalidates some set of nodes, and the same class or attribute churning over and over is the pattern to hunt. Counts, not milliseconds: the time is in the style recalculation numbers above.
Most of this is the page being built. Only 79 style recalculations and 215 layout invalidations happened after first paint; the rest is the first render. Not much to chase here.
pseudo: disabled7×pseudo: enabled7×attribute: disabled4×attribute: aria-hidden1×class: html5-main-video1×class: unstarted-mode1×class: ytp-small-mode1×Invalidations while the largest paint was still pending, so these delayed it.
| Reason | Style recalculations | Layout |
|---|---|---|
| A node was inserted into the page | 23 | – |
| Related style rule | 3 | – |
| An element entered layout | – | 3 |
| A web font finished loadingPreload the font or use font-display so a late swap does not re-style the page. | – | 58 |
| An element's size changed | – | 4 |
Churn on the fully rendered page: wasted work and possible jank, but no paint delay.
| Reason | Style recalculations | Layout |
|---|---|---|
| A stylesheet rule changed | 22 | – |
| A node was inserted into the page | 21 | – |
| Related style rule | 6 | – |
| JavaScript changed an inline styleSet a class instead of writing element.style, so the browser can batch the work. | 3 | – |
| Frame | 1 | – |
| An element entered layout | – | 110 |
| A web font finished loadingPreload the font or use font-display so a late swap does not re-style the page. | – | 20 |
| A style change forced layout | – | 6 |
| An element left layout | – | 9 |
| An element's size changed | – | 4 |
| Scrollbar changed | – | 1 |
The page being constructed and styled for the first render. Expected work, shown for scale.
| Reason | Style recalculations | Layout |
|---|---|---|
| A stylesheet rule changed | 600 | – |
| A node was inserted into the page | 5 | – |
| Control | 2 | – |
| An element entered layout | – | 1 108 |
| A web font finished loadingPreload the font or use font-display so a late swap does not re-style the page. | – | 948 |
| A style change forced layout | – | 654 |
| An element left layout | – | 145 |
| Scrollbar changed | – | 1 |
| Unknown | – | 1 |
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 9.2.1.
decodingAsyncThe page has 49 images (out of 49) without a decoding hint. Add decoding="async" to non-critical images so the browser can decode them off the main thread.
Setting decoding="async" on an <img> tells the browser it can decode the image off the main thread, which keeps the page responsive to user interactions while images are being processed. The default ("auto") leaves the choice to the browser. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#decoding
googleTagManagerThe page is using Google Tag Manager, this is a performance risk since non-tech users can add JavaScript to your page.
Google Tag Manager makes it possible for non tech users to add scripts to your page that will downgrade performance.
longTasksThe page has 7 CPU long tasks with the total of 621 ms. The total blocking time is 236 ms and 1 long task before first contentful paint with total time of 85 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.
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.
fewFontsThe page has 10 font requests. Do you really need them? What value does the fonts give the user?
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.
javascriptSizeThe total JavaScript transfer size is 1.1 MB and the uncompressed size is 3.8 MB. This is totally crazy! There is really room for improvement here.
A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?
pageSizeThe page total transfer size is 3.5 MB, which is more than the coach limit of 3 MB. That is really big and you need to make it smaller.
Avoid having pages that have a transfer size over the wire of more than 3 MB (desktop) and 2 MB (mobile) because heavy pages hurt performance and are expensive for users on metered connections. Reference: HTTP Archive median page weight in 2024 was around 2.7 MB desktop / 2.4 MB mobile, so this rule fires when a page is above the modern median.
modernImageFormatsThe page ships 37 images (out of 49) in JPEG/PNG/GIF without a modern alternative. Wrap them in a <picture> with a <source type="image/avif"> or "image/webp" before the legacy <img>, or serve modern formats from your image pipeline directly. AVIF and WebP usually deliver 25–50% smaller files at the same quality.
AVIF and WebP routinely deliver 25–50% smaller files than JPEG and PNG at the same perceived quality, and every browser version still under support understands at least one of them. Ship modern formats either through a <picture> element with <source type="image/avif"> / "image/webp" entries in front of the legacy <img>, or directly from a content-negotiating image pipeline that returns AVIF / WebP when the client accepts it. https://web.dev/articles/serve-images-webp
cacheHeadersThe page has 5 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 65.2 kB the next access.
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.
cssSizeThe total CSS transfer size is 141.3 kB and uncompressed size is 920.7 kB. That is big and the CSS could most probably be smaller.
Delivering a massive amount of CSS to the browser is not the best thing you can do, because it means more work for the browser when parsing the CSS against the HTML and that makes the rendering slower. Try to send only the CSS that is used on that page. And make sure to remove CSS rules when they aren't used anymore.
imageSizeThe page total image size is 1.5 MB. It's really big. Is the page using the right format for the images? Can they be lazy loaded? Are they compressed as good as they can be? Make them smaller by using https://imageoptim.com/.
Avoid having too many large images on the page. The images will not affect the first paint of the page, but it will eat bandwidth for the user.
avoidRenderBlockingThe page has 9 blocking requests and 4 in body parser blocking (4 JavaScript and 9 CSS). There are 1 potentially render blocking requests. You need to verify if it is render blocking: https://www.googletagmanager.com/gtag/js?id=G-YP51KSLLWR
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.
cacheHeadersLongThe page has 35 requests that have a shorter cache time than one year (but still a cache time).
Setting a cache header is good. Setting a long cache header (a year) is even better because the asset will stay in the browser cache across visits. For content-hashed URLs (e.g. app.4af2.css) you can safely use Cache-Control: max-age=31536000, immutable. For unversioned URLs that may change, use a revalidating strategy instead.
optimalCssSizehttps://www.proantic.com/css/A.sweetalert2-v1-2.css,,q20260926102225+carrousel-09.css,,q20260926102225+fontawesome.min.css,,q20260926102225,Mcc.-ud7uC62EX.css.pagespeed.cf.cMgkAqLh5l.css size is 41.5 kB (41503) and that is bigger than the limit of 25 kB. https://www.youtube.com/s/player/ec429320/www-player.css size is 59.3 kB (59273) and that is bigger than the limit of 25 kB. Try to keep each CSS response under 25 kB.
Render-blocking CSS holds up the first paint until it has fully downloaded, parsed and applied, so smaller CSS files mean a faster start. Split your CSS into a small critical bundle inlined or eagerly loaded, with the rest lazy-loaded.
| URL | Transfer | Content |
|---|---|---|
| https://www.proantic.com/css/A.sweetalert2-v1-2.css,,q20260926102225+carrousel-0...cf.cMgkAqLh5l.css | 40.5 KB | 166.5 KB |
| https://www.youtube.com/s/player/ec429320/www-player.css | 57.9 KB | 537.4 KB |
lazyLoadingImagesThe page has 6 below-the-fold images without loading="lazy". Add loading="lazy" so the browser defers downloading and decoding them until the user scrolls them into view.
Adding loading="lazy" to an <img> tells the browser not to download or decode it until it is close to the viewport. For images that the user may never see (deep in the page, behind a tab, in a footer carousel), this saves bandwidth and main-thread time during initial render. The LCP image and any image in the initial viewport should NOT be lazy-loaded — that delays the first paint. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#loading
assetsRedirectsThe page has 1 redirect. 1 request are from other domains, it could be 3rd-party assets doing unnecessary redirects. :(
A redirect is one extra step for the user to download the asset. Avoid that if you want to be fast. Redirects are even more of a showstopper on mobile.
compressAssetsThe page has 1 request that are served uncompressed. You could save a lot of bytes by sending them compressed instead.
In the early days of the Internet there were browsers that didn't support compressing (gzipping) text content. They do now. Make sure you compress HTML, JSON, JavaScript, CSS and SVG. It will save bytes for the user; making the page load faster and use less bandwith.
| URL | Transfer | Content |
|---|---|---|
| https://analytics.proantic.com/api/script.js | 33.5 KB | 33.2 KB |
privateAssetsThe 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.
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.
unnecessaryHeadersThere are 3 responses that sets a p3p header. There are 52 responses that sets both a max-age and expires header. There are 3 responses that sets a pragma no-cache header (that is a request header). There are 62 responses that sets a server header.
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.
metaDescriptionThe meta description is too long. It has 208 characters, the recommended max is 160
Use a page description to make the page more relevant to search engines.
pageTitleThe title is too long by 10 characters. The recommended max is 60
Use a title to make the page more relevant to search engines.
thirdPartyThe page do 29% requests to third party domains (18 requests and 1.3 MB). First party is 45 requests and 2.2 MB. The regex .*proantic.* was used to calculate first/third party requests.
Do not load most of your content from third party URLs.
longHeadershttps://www.proantic.com/ has a header content-security-policy that is 2256 characters long. https://www.youtube....embed/UbDi7Z6y4lA has a header content-security-policy that is 915 characters long. https://www.youtube....embed/UbDi7Z6y4lA has a header set-cookie that is 1327 characters long.
Do not send response headers that are too long.
iframeSandboxThe page embeds 1 cross-origin iframe without a sandbox attribute. Add sandbox="" with the minimum set of allow-* tokens the embed actually needs.
Adding a sandbox attribute to a cross-origin iframe restricts what the embedded page can do (script execution, form submission, top-level navigation, popups, etc.) and is one of the cheapest ways to limit the blast radius of a third-party embed. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox
referrerPolicyNo <meta name="referrer"> tag was found on the page. Set a Referrer-Policy response header (preferred) or add a meta tag, for example <meta name="referrer" content="strict-origin-when-cross-origin">.
Without an explicit referrer policy the browser falls back to the user-agent default and may leak the full URL of the previous page (including query strings) to every cross-origin request. Set a Referrer-Policy response header (preferred) or a <meta name="referrer"> tag in the document. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy
surveillanceThe page embeds 2 resources from companies that profit from user surveillance. Consider privacy-respecting alternatives.
Embedding scripts or iframes from companies whose business model is surveillance capitalism (Google, Facebook, etc.) leaks detailed user data on every page view, often before the user has had a chance to consent. See https://en.wikipedia.org/wiki/Surveillance_capitalism for background. Prefer privacy-respecting alternatives where possible.
crossOriginEmbedderPolicyHeaderSet a Cross-Origin-Embedder-Policy header (typically require-corp or credentialless) on the document response to control cross-origin embedding.
Cross-Origin-Embedder-Policy (COEP) makes the page refuse to load cross-origin subresources unless they explicitly opt in via CORP or CORS. Together with Cross-Origin-Opener-Policy it puts the page in a cross-origin isolated context, which mitigates cross-window side-channel attacks (Spectre) and unlocks high-resolution timers and SharedArrayBuffer. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy
crossOriginOpenerPolicyHeaderSet a Cross-Origin-Opener-Policy header (typically same-origin) on the document response to isolate the page from cross-origin windows.
Cross-Origin-Opener-Policy (COOP) lets a page sever its window-group ties to cross-origin documents that opened it or that it opens. Together with Cross-Origin-Embedder-Policy it puts the page in a cross-origin isolated context, which mitigates cross-window side-channel attacks (Spectre) and unlocks high-resolution timers and SharedArrayBuffer. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy
crossOriginResourcePolicyHeaderSet a Cross-Origin-Resource-Policy header (same-origin, same-site or cross-origin) on the document response to limit who may embed it.
Cross-Origin-Resource-Policy (CORP) is a per-response opt-in that tells the browser which origins are allowed to embed the resource. It blocks cross-origin or cross-site no-cors embedding (img, script, iframe, etc.) and is one of the building blocks of cross-origin isolation. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy
nelHeaderSet a NEL header (paired with Reporting-Endpoints) to collect connection-level error reports from the field.
The NEL (Network Error Logging) response header tells the browser to record connection-level failures (DNS, TLS, HTTP errors) and ship them to a reporting endpoint. NEL pairs with the Reporting-Endpoints / Report-To header — the page declares the endpoint group and NEL points at it. Together they give you visibility into errors that never reach your origin server. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/NEL
referrerPolicyHeaderSet a referrer-policy header to make sure you do not leak user information.
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/.
reportingEndpointsHeaderSet a Reporting-Endpoints header (or the legacy Report-To header) so CSP reports, NEL data and other Reporting-API events have an endpoint to land at.
The Reporting-Endpoints response header (the successor to Report-To) names the URLs that browsers should POST reports to. Without it, CSP report-to directives, Cross-Origin-Opener-Policy reports, NEL data and other Reporting-API events have nowhere to go. The legacy Report-To header is still accepted for older Chromium versions. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Reporting-Endpoints
thirdPartyPrivacyThe page has 29% requests that are 3rd party (18 requests with a size of 1.3 MB). 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 18 surveillance requests and uses 6 surveillance tools. The page do 1 tag-manager request and uses 1 tag-manager tool. The page do 9 video requests and uses 1 video tool. The page do 3 ad requests and uses 1 ad tool. The page do 3 utility requests and uses 1 utility tool.
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.
contentSecurityPolicyHeaderThe policy allows 'unsafe-inline', which lets the browser execute inline scripts and styles directly from the page. Move to nonces or hashes plus 'strict-dynamic' so that inline injection cannot run. The policy allows 'unsafe-eval', which lets the page call eval() and Function(). Almost no application needs this; remove it.
A Content-Security-Policy response header tells the browser which sources of script, style, and other content are allowed. The most effective form is a strict CSP using nonces or hashes together with strict-dynamic; the worst is a missing header, with unsafe-inline and unsafe-eval close behind. https://web.dev/articles/strict-csp
thirdPartyCookiesThe page sets 1 third party cookie.
Third party cookies are used to track the user. They are automatically blocked in Safari and Firefox.
A snapshot of what the browser actually built for this page: the document, how big and deep the DOM tree is and what it kept in storage. Big, deep trees are slower to style and lay out, so the counts Chrome warns about carry a flag.
Document
What the page says it is and how large it rendered.
DOM structure
How much markup the browser has to build, style and lay out.
What the page stored on the client, and the network it was tested on.
Data collected using
Coach-core version 9.2.1. With updated code from
Webappanalyzer 2026-05-04. Use
--browsertime.firefox.includeResponseBodies html or
--browsertime.chrome.includeResponseBodies html to help Wappalyzer find more information about technologies used.
Data collected using Third Party Web version 0.29.2.
0.0s0.5s0.7s0.9s1.0s1.2s1.4s1.6sWhen the page main content is rendered, collected via the Largest Contentful Paint API. Read more about Largest Contentful Paint.
body > main > section:eq(0) > div:eq(3)
The LCP element is highlighted in the screenshot. If nothing is highlighted the element was removed before the screenshot or the LCP API couldn't find it.
The Largest Contentful Paint API matched this image:
How much the page's content shifts as it loads, collected via the Cumulative Layout Shift API.
One shift is 53% of your 0.002 CLS. #text moved at 485 ms. Reserve space for whatever renders into that spot, a fixed height or an aspect-ratio box, so later content stops pushing the page around.
Worst first, showing shifts of 0.01 and up. Each percentage is that shift's exact share of the score.
The shift is spread across many movements below 0.01, none large enough to single out. Check the video or filmstrip to see what moved.
Elements that shifted by more than 0.01 are highlighted in the screenshot. If an element shifted outside the viewport, it won't appear here. Check the video or filmstrip to see the shift.
There are no custom configured scripts.
There are no custom extra metrics from scripting.
How the page is built.
| Header | Value |
|---|---|
cache-control | max-age=0, no-cache, s-maxage=10 |
content-encoding | gzip |
content-security-policy | upgrade-insecure-requests;font-src 'self' data:; img-src 'self' https://assets.pinterest.com/ https://www.googletagmanager.com https://*.googletagmanager.com/ https://*.google-analytics.com/ https://googleads.g.doubleclick.net https://stats.g.doubleclick.net data: blob:; frame-src 'self' https://www.youtube.com https://bid.g.doubleclick.net https://www.google.com/recaptcha/ https://recaptcha.google.com/recaptcha/; child-src 'self' https://www.google.com/recaptcha/ https://recaptcha.google.com/recaptcha/ ;connect-src 'self' https://analytics.proantic.com/ https://storage.googleapis.com/monocle-spdj-production.appspot.com/ wss://gallery-rc.monocle3d.com wss://gallery.monocle3d.com https://gallery-rc.monocle3d.com/ https://components-rc.monocle3d.com/ https://gallery.monocle3d.com/ https://components.monocle3d.com/ https://www.google.com/recaptcha/api2/ https://firebasestorage.googleapis.com https://firestore.googleapis.com https://*.analytics.google.com https://*.googletagmanager.com https://*.google-analytics.com/ https://www.google-analytics.com/j/ www.google-analytics.com *.google-analytics.com https://stats.g.doubleclick.ne blob:; form-action 'self' https://www.sandbox.paypal.com/ https://www.paypal.com/ https://proantic.us8.list-manage.com/subscribe/post; object-src 'none'; worker-src 'self' blob:; base-uri 'self'; frame-ancestors 'self';script-src 'unsafe-eval' 'unsafe-inline' 'self' https://analytics.proantic.com/api/script.js https://components.monocle3d.com/ https://components-rc.monocle3d.com/ https://www.googletagmanager.com/ https://monocle.link https://monocle.link/ https://ajax.googleapis.com/ajax/libs/model-viewer/3.5.0/model-viewer.min.js https://cse.google.com/cse/ https://www.google.com/cse/ https://tagmanager.google.com https://transloadit.edgly.net/releases/ https://code.jquery.com/jquery-3.2.1.min.js https://cdn.jsdelivr.net/npm/ https://apis.google.com/ajax/libs/ https://www.google.com/recaptcha/api.js https://ajax.googleapis.com/ajax/libs/webfont/ https://apis.google.com/js/ https://ajax.googleapis.com/ajax/libs/jquery/ https://ajax.googleapis.com/ajax/libs/jqueryui/ https://www.gstatic.com/recaptcha/ https://cdnjs.cloudflare.com/ajax/libs/jquery/ https://cdnjs.cloudflare.com/ajax/libs/jqueryui/; |
content-type | text/html; charset=utf-8 |
date | Tue, 13 Oct 2026 01:31:07 GMT |
permissions-policy | geolocation=(self), microphone=() |
server | nginx |
strict-transport-security | max-age=63072000; includeSubDomains; preload |
vary | Accept-Encoding |
x-content-type-options | nosniff |
x-frame-options | SAMEORIGIN |
x-mod-pagespeed | 1.13.35.2-0 |
Transfer size3.4 MB
Content size6.8 MB
Requests62
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 90.4 KB | 285.3 KB | 3 |
| css | 0 b | 138.0 KB | 899.1 KB | 10 |
| javascript | 0 b | 1.1 MB | 3.6 MB | 9 |
| image | 0 b | 1.5 MB | 1.5 MB | 23 |
| font | 0 b | 570.8 KB | 567.4 KB | 10 |
| json | 0 b | 1.2 KB | 513 B | 5 |
| other | 0 b | 0 b | 0 b | 1 |
| plain | 0 b | 10 B | 0 b | 1 |
| Total | 0 b | 3.4 MB | 6.8 MB | 62 |
| Domain | Total download time | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| www.proantic.com | 15.469 s | 2.1 MB | 2.5 MB | 41 |
| ajax.googleapis.com | 39 ms | 30.9 KB | 87.4 KB | 1 |
| analytics.proantic.com | 369 ms | 34.2 KB | 33.5 KB | 4 |
| www.googletagmanager.com | 1.366 s | 165.5 KB | 486.0 KB | 1 |
| www.youtube.com | 3.891 s | 977.2 KB | 3.6 MB | 8 |
| fonts.gstatic.com | 106 ms | 39.2 KB | 39.2 KB | 1 |
| googleads.g.doubleclick.net | 40 ms | 145 B | 100 B | 2 |
| static.doubleclick.net | 27 ms | 495 B | 29 B | 1 |
| www.google.com | 24 ms | 23.9 KB | 62.1 KB | 1 |
| jnn-pa.googleapis.com | 46 ms | 308 B | 98 B | 2 |
| i.ytimg.com | 4 ms | 13.6 KB | 13.1 KB | 1 |
| type | min | median | max |
|---|---|---|---|
| Expires | 0 seconds | 4 weeks | 1 year |
| Last modified | 3 hours | 2 weeks | 17 years |
Includes requests done after load event end.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 0 b | 0 |
| image | 16.8 KB | 2 |
| font | 0 b | 0 |
| favicon | 0 b | 0 |
| json | 50 B | 1 |
| Total | 16.9 KB | 3 |
Includes requests done after DOM content loaded.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 1 |
| css | 0 b | 0 |
| javascript | 245.6 KB | 3 |
| image | 16.8 KB | 2 |
| font | 0 b | 0 |
| favicon | 0 b | 0 |
| other | 0 b | 1 |
| json | 726 B | 4 |
| plain | 10 B | 1 |
| Total | 263.1 KB | 13 |
Tasks ≥ 50 ms blocking the main thread, collected via the Long Task API.
A long animation frame (LOAF) is a frame that took ≥ 50 ms from input to the next paint. The part beyond the threshold is blocking time, the number that hurts Interaction to Next Paint and Total Blocking Time. Break long tasks up (scheduler.yield(), smaller chunks) or move the work off the main thread. Read more about the Long Animation Frames API.
| Script | Frames | Time running | Blocking (share by run time) | Forced style & layout | Triggered by |
|---|---|---|---|---|---|
| js | 1 | 68.3 ms | 18.4 ms | – | script tag |
A frame's blocking time is split between its scripts by their share of the frame's work, capped at each script's own run time — blocking from work no script owns (HTML parsing, browser internals) stays unattributed. The per-script blocking view below uses the same attribution.
The browser did not report which script was responsible for this frame — typically its own style/layout work, or a cross-origin script it will not name.
The browser did not report which script was responsible for this frame — typically its own style/layout work, or a cross-origin script it will not name.
The browser did not report which script was responsible for this frame — typically its own style/layout work, or a cross-origin script it will not name.
How much each script blocked the main thread, derived from the Long Animation Frame API. Each frame's blocking time is split between its scripts by their share of the frame's work, capped at each script's own run time — blocking from work no script owns (HTML parsing, browser internals) is not attributed (older data credits the script that started the frame). The closest answer to "which script should I fix to improve TBT" the platform exposes.
Total Blocking Time attributed per script from the Chrome trace: every main-thread task longer than 50 ms blocks input for the remainder, and each blocking task is credited to the script whose own code ran the longest during that task.
All main-thread work during the full page load, not just the share that blocked input. Calculated from the Chrome trace.
parseHTMLstyleLayoutscriptParseCompilescriptEvaluationpaintCompositeRendergarbageCollectionotherHow much setTimeout/setInterval work the page runs, credited to the script that scheduled each timer. Many zero-delay timers mean work sliced into a machine-gun of tiny tasks; repeating timers are polling.
A forced reflow happens when JavaScript reads a layout-triggering property (offsetTop, getBoundingClientRect, …) inside a handler, forcing the browser to synchronously recompute layout. The scripts below caused most of the page's reflows. Fix them in priority order.
Main-thread CPU time from the Chrome trace split by domain. First party is proantic.com.
Want to dig deeper? Download the Chrome trace and drag-and-drop it into Performance in DevTools.
Third party requests categorised by Third party web version 0.29.2.
Requests by category36
Transfer size3.4 MB
Content size6.8 MB
Requests63
Calculated using .*proantic.* (use --firstParty to configure).
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 27.4 KB | 134.1 KB | 1 |
| css | 0 b | 77.2 KB | 350.7 KB | 8 |
| javascript | 0 b | 48.5 KB | 80.4 KB | 2 |
| image | 0 b | 1.5 MB | 1.5 MB | 22 |
| font | 0 b | 531.6 KB | 528.2 KB | 9 |
| favicon | 0 b | 0 b | 0 b | 0 |
| json | 0 b | 701 B | 287 B | 2 |
| other | 0 b | 0 b | 0 b | 1 |
| Total | N/A | 2.1 MB | 2.5 MB | 45 |
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 63.0 KB | 151.2 KB | 2 |
| css | 0 b | 60.8 KB | 548.5 KB | 2 |
| javascript | 0 b | 1.0 MB | 3.5 MB | 7 |
| image | 0 b | 13.6 KB | 13.1 KB | 1 |
| font | 0 b | 39.2 KB | 39.2 KB | 1 |
| favicon | 0 b | 0 b | 0 b | 0 |
| json | 0 b | 504 B | 226 B | 3 |
| plain | 0 b | 10 B | 0 b | 1 |
| Total | N/A | 1.2 MB | 4.3 MB | 18 |
Axe is an accessibility testing engine for websites and other HTML-based user interfaces. Tested using axe-core version 4.11.4. Read more about axe-core.
3 accessibility rules failed, affecting 10 elements.
Start with the 2 serious issues.
color-contrastEnsure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds
Read the axe-core docs for this rule →
Fix any of the following: Element has insufficient color contrast of 2.68 (foreground color: #bc9956, background color: #ffffff, font size: 24.0pt (32px), font weight: normal). Expected contrast ratio of 3:1
<span>PROANTIC</span><a class="nav-menu-hover-a" href="https://www.proantic.com/antiquites-nouveautes">nouveautés</a><div class="navlink loginlink">
Mon compte </div><a href="https://www.proantic.com/antiquites-nouveautes" class="button_gold">Voir toutes les nouveautés</a><a rel="nofollow" href="https://www.proantic.com/antiquites-nouveautes?obj_3d=1" class="button_gold">Voir tous les objets 3D</a><input type="submit" value="Je m'abonne" name="subscribe" id="mc-embedded-subscribe" class="mailchimp-button button">link-nameEnsure links have discernible text
Read the axe-core docs for this rule →
Fix all of the following: Element is in tab order and does not have accessible text Fix any of the following: Element does not have text that is visible to screen readers aria-label attribute does not exist or is empty aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty Element has no title attribute
<a href="https://www.proantic..." class="home-section-magazin..." style="background-image:url..."><a href="https://www.proantic..." class="home-section-magazin..." style="background-image:url..."><a href="https://www.proantic..." class="home-section-magazin..." style="background-image:url...">landmark-uniqueEnsure landmarks are unique
Read the axe-core docs for this rule →
Fix any of the following: The landmark must have a unique aria-label, aria-labelledby, or title to make landmarks distinguishable
<nav id="totop" class="navbar">