Run 1 summary

https://stf.xelta.ai/models/image_editing/stable-image-remove-background-workflow

Tested 2026-09-08 14:20:47 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayThird party

Summary

Google Web Vitals

340 msTTFB
2.652 sLargest Contentful Paint
0.000Cumulative Layout Shift
657 msTotal Blocking Time

Loading

936 msFirst Paint
8.156 sFully Loaded
211 msMax Potential FID

Page weight & requests

9.8 MBTotal transfer size
13.5 MBTotal content size
117Requests

CPU

13Long tasks
5.124 sLast long task at

Visual progress

600 msFirst Visual Change
1.601 sSpeed Index
2.500 sVisual Complete 85%
3.234 sVisual Complete 99%
4.567 sLast Visual Change
Screenshot
Run 1 · after page complete

Waterfall

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1
0.000 s
0s1s2s3s4s

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 video

Filmstrip

42 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 600 ms
600 ms
43 %
Frame at 700 ms
700 ms
43 %
Frame at 800 ms
800 ms
43 %
Frame at 900 ms
900 ms
43 %
Frame at 1.000 s
1.000 s
45 %
Frame at 1.100 s
1.100 s
45 %
Frame at 1.200 s
1.200 s
45 %
Frame at 1.300 s
1.300 s
45 %
Frame at 1.400 s
1.400 s
45 %
Frame at 1.500 s
1.500 s
45 %
Frame at 1.600 s
1.600 s
45 %
Frame at 1.700 s
1.700 s
45 %
Frame at 1.800 s
1.800 s
45 %
Frame at 1.900 s
1.900 s
45 %
Frame at 2.000 s
2.000 s
51 %
Frame at 2.100 s
2.100 s
55 %
Frame at 2.200 s
2.200 s
61 %
Frame at 2.300 s
2.300 s
72 %
Frame at 2.400 s
2.400 s
83 %
Frame at 2.500 s
2.500 s
85 %
Frame at 2.600 s
2.600 s
85 %
Frame at 2.700 s
2.700 s
91 %
Frame at 2.800 s
2.800 s
95 %
Frame at 2.900 s
2.900 s
97 %
Frame at 3.000 s
3.000 s
98 %
Frame at 3.100 s
3.100 s
98 %
Frame at 3.200 s
3.200 s
98 %
Frame at 3.300 s
3.300 s
99 %
Frame at 3.400 s
3.400 s
99 %
Frame at 3.500 s
3.500 s
99 %
Frame at 3.600 s
3.600 s
99 %
Frame at 3.700 s
3.700 s
99 %
Frame at 3.800 s
3.800 s
99 %
Frame at 3.900 s
3.900 s
99 %
Frame at 4.000 s
4.000 s
99 %
Frame at 4.100 s
4.100 s
99 %
Frame at 4.200 s
4.200 s
99 %
Frame at 4.300 s
4.300 s
99 %
Frame at 4.400 s
4.400 s
99 %
Frame at 4.500 s
4.500 s
99 %
Frame at 4.600 s
4.600 s
100 %

Click a frame to seek the video to that moment. The dot marks frames where the page changed visually.

Why was rendering delayed?

Rendering was not meaningfully delayed. First paint landed at 936 ms on a 340 ms first byte, with no render-blocking requests: the ~594 ms after the document is style, layout and web-font loading. The largest paint followed at 2.652 s.

Want to see how much CSS style-recalculation work delayed FCP and LCP, plus CPU long tasks? Run with --cpu.

Render blocking requests

0 requests

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.

None. Nothing except the document itself blocked rendering.

RequestWhen it loadedTransferDownload
document
stf.xelta.ai · TTFB 340 ms
342 ms
32.2 KB340 ms
LCP resource
1776240208086-nfmuxc4ahar.webp — downloaded by 2.534 s, rendered at 2.652 s
306 ms
141.4 KB306 ms
web font · stf.xelta.ai
148 ms
71.2 KB148 ms
web font · stf.xelta.ai
137 ms
8.1 KB137 ms
web font · stf.xelta.ai
137 ms
35.2 KB137 ms
0663 ms1.326 s1.989 sFCP 936 msLCP 2.652 s

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 9.2.1.

Performance advice

70
4 errors11 warnings3 info
warn(0)Don't scale images in the browseravoidScalingImages

The page has 26 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.

It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.

Offenders
warn(0)Avoid using Google Tag Manager.googleTagManager

The 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.

warn(0)Avoid CPU Long TaskslongTasks

The page has 13 CPU long tasks with the total of 1.367 s. The total blocking time is 657 ms and 2 long tasks before first contentful paint with total time of 160 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.

Offenders
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
warn(0)Avoid extra requests by setting cache headerscacheHeaders

The page has 10 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 14.2 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.

Offenders
infoAvoid too many fontsfewFonts
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.4 MB and the uncompressed size is 4.5 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?

Offenders
URLTransferContent
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP185.8 KB564.5 KB
https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba178836298749510.1 KB29.6 KB
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https://connect.facebook.net/en_US/fbevents.js109.0 KB405.9 KB
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https://stf.xelta.ai/_next/static/chunks/1lt5hg7lx8f9v.js795 B143 B
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warn(0)Total page size shouldn't be too bigpageSize

The page total transfer size is 10.2 MB, which is more than the coach limit of 3 MB. That is insane 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.

Offenders
URLTransferContent
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https://stf.xelta.ai/cdn-cgi/speculation464 B151 B
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https://stb.xelta.ai/api/quiz/quiz-events/active-banner0 b0 b
https://stb.xelta.ai/api/quiz/quiz-events/active-banner1.2 KB43 B
https://us-assets.i.posthog.com/array/http://APP_NEXT_PUBLIC_POSTHOG_KEY_PLACEHO...LACEHOLDER/config70 B0 b
https://mpc-prod-27-s6uit34pua-uk.a.run.app/events?cee=noN/A0 b
https://www.facebook.com/tr/424 B0 b
https://stf.xelta.ai/_next/static/chunks/3c1qhb4nq6dod.js2.9 KB6.2 KB
https://stf.xelta.ai/_next/static/chunks/450dvigt89kes.js34.9 KB106.7 KB
https://stf.xelta.ai/api/geo1.9 KB152 B
https://us.i.posthog.com/flags/?v=2&_=1788877252478&ver=1.399.0&compression=base64496 B174 B
https://stf.xelta.ai/_next/static/chunks/3f9z407v9nlgc.js1.7 KB1.9 KB
https://stf.xelta.ai/_next/static/chunks/0kxlndj0drg8y.js9.8 KB32.4 KB
https://stf.xelta.ai/_next/static/chunks/0pie_tozoy1oa.js10.1 KB31.2 KB
https://stf.xelta.ai/_next/static/chunks/2fwbq4un93c_i.js46.9 KB207.4 KB
https://stf.xelta.ai/_next/image?url=%2Fchatboard%2Favtar.png&w=96&q=75129.6 KB128.9 KB
https://telemetry.matchbestsoftware.online/faro/0 b0 b
https://telemetry.matchbestsoftware.online/faro/286 B2 B
warn(10)Apply the right priority hints to the LCP imagelcpImageHints

The LCP image has loading="lazy", which delays its download until the browser thinks it is near the viewport — and so directly delays the LCP metric. Remove loading="lazy" from the LCP image. The LCP image is missing fetchpriority="high". Adding it tells the browser to fetch the image with high priority instead of the default heuristic (which often deprioritises hero images that are loaded after the HTML has been parsed).

When the Largest Contentful Paint element is an image, the browser priority hints applied to that element directly affect the LCP metric. The image must NOT be loading="lazy" (that defers the fetch until near-viewport, which is the opposite of what an LCP image needs) and SHOULD be fetchpriority="high" (so the browser fetches it with high priority instead of guessing). https://web.dev/articles/fetch-priority

Offenders
  • <img alt="Uploaded image" loading="lazy" decoding="async" class="w-full h-full object-contain" src="https://media.xelta.ai/uploads/1776240208086-nfmuxc4ahar.webp">
  • <img alt="Uploaded image" loading="lazy" decoding="async" class="w-full h-full object-contain" src="https://media.xelta.ai/uploads/1776240208086-nfmuxc4ahar.webp">
warn(50)Total CSS size shouldn't be too bigcssSize

The total CSS transfer size is 92.8 kB and uncompressed size is 686.7 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.

Offenders
URLTransferContent
https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css85.0 KB632.6 KB
https://stf.xelta.ai/_next/static/chunks/2d9-f2l59svdc.css1.1 KB2.0 KB
https://stf.xelta.ai/_next/static/chunks/178pt4rau30r7.css3.6 KB34.8 KB
https://fonts.googleapis.com/css2?family=Anton&display=swap923 B1.2 KB
warn(50)Total image size shouldn't be too bigimageSize

The page total image size is 8.4 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.

warn(60)Don't use private headers on static contentprivateAssets

The page has 5 requests with private headers. The main page has a private header. It could be right in some cases where the user can be logged in and served specific content. But if your asset is static it should never be private. 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.

Offenders
error(60)Avoid missing and error requestsresponseOk

The page has 4 error responses. The page has 2 responses with code 401. The page has 2 responses with code 404.

Your page should never request assets that return a 400 or 500 error. These requests are never cached. If that happens something is broken. Please fix it.

Offenders
infoLong cache headers is goodcacheHeadersLong

The page has 37 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.

Offenders
error(80)Have a fast largest contentful paintlargestContentfulPaint

Largest contentful paint can be improved 2.652 s. It is in the Google Web Vitals needs improvement range, slower than 2.5 seconds.

Largest contentful paint is one of Google Web Vitals and reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading. To be fast according to Google, it needs to render before 2.5 seconds and results over 4 seconds is poor performance.

Offenders
error(90)Avoid Frontend single point of failuresspof

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.

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
infoMake each CSS response smalloptimalCssSize

https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css size is 87.1 kB (87084) 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.

Offenders
URLTransferContent
https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css85.0 KB632.6 KB
warn(95)Inline CSS for faster first renderinlineCss

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.

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.

error(97)Avoid using incorrect mime typesmimeTypes

The page has 3 misconfigured mime types.

It's not a great idea to let browsers guess content types (content sniffing), in some cases it can actually be a security risk.

Offenders

Best practice advice

86
1 warning4 info
infoAvoid unnecessary headersunnecessaryHeaders

There are 1 response that sets a p3p header. There are 5 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 115 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.

Offenders
infoMeta descriptionmetaDescription

The meta description is too long. It has 219 characters, the recommended max is 160

Use a page description to make the page more relevant to search engines.

warn(50)Avoid too many third party requeststhirdParty

The page do 14% requests to third party domains (16 requests and 570 kB). First party is 101 requests and 9.7 MB. The regex .*xelta.* was used to calculate first/third party requests.

Do not load most of your content from third party URLs.

infoDo not send too long headerslongHeaders

https://stf.xelta.ai...ckground-workflow has a header link that is 1429 characters long. https://connect.face...en_US/fbevents.js has a header content-security-policy that is 1344 characters long. https://connect.face...en_US/fbevents.js has a header permissions-policy that is 874 characters long. https://stf.xelta.ai...ta.ai/_next/image has a header report-to that is 631 characters long. https://connect.face.../1123404090023729 has a header content-security-policy that is 1344 characters long. https://connect.face.../1123404090023729 has a header permissions-policy that is 874 characters long. https://stf.xelta.ai/api/geo has a header report-to that is 627 characters long.

Do not send response headers that are too long.

Offenders
infoAvoid use too many response headersmanyHeaders

https://stb.xelta.ai...nts/active-banner has 34 headers.

Avoid send too many response headers.

Offenders

Privacy advice

60
1 error7 warnings2 info
warn(0)Avoid using Google Analyticsga

The page is using Google Analytics meaning you share your users private information with Google. You should use analytics that care about user privacy, something like https://matomo.org.

Google Analytics share private user information with Google that your user hasn't agreed on sharing.

warn(0)Avoid embedding services from surveillance capitalist companiessurveillance

The page embeds 4 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.

Offenders
warn(0)Use a strict Content-Security-Policy header to mitigate cross-site scripting (XSS) attacks.contentSecurityPolicyHeader

Set a Content-Security-Policy header to mitigate cross-site scripting attacks. You can start with a Content-Security-Policy-Report-Only header, which only reports violations rather than blocking them.

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

Offenders
infoSet a Cross-Origin-Embedder-Policy header so cross-origin subresources opt in to being embedded.crossOriginEmbedderPolicyHeader

Set 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

Offenders
warn(0)Set a Cross-Origin-Opener-Policy header to isolate the page from cross-origin windows.crossOriginOpenerPolicyHeader

Set 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

Offenders
infoSet a Cross-Origin-Resource-Policy header to limit who may embed the page.crossOriginResourcePolicyHeader

Set 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

Offenders
error(0)Serve all responses on HTTPS (when you are on HTTPS)mixedContent

You need to serve all responses on HTTPS. The page have 2 responses using HTTP. That is a privacy and security risk.

You need to make sure that if you are on HTTPS, all responses are on HTTPS so that the content served are secured.

Offenders
warn(0)Set a Permissions-Policy header to control which browser features the page can use.permissionsPolicyHeader

Set a Permissions-Policy header to control which browser features the page can use.

The Permissions-Policy response header (the successor to Feature-Policy) lets a site explicitly opt in or out of powerful browser features such as camera, microphone, geolocation, payment and clipboard. Setting a strict policy reduces the attack surface and limits what embedded third parties can do. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Permissions-Policy

Offenders
warn(0)Do not share user data with third parties.thirdPartyPrivacy

The page has 9% requests that are 3rd party (10 requests with a size of 569.2 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 9 survelliance requests and uses 6 survelliance tools. The page do 9 surveillance requests and uses 6 surveillance tools. The page do 2 tag-manager requests and uses 1 tag-manager tool. The page do 2 utility requests and uses 2 utility tools. The page do 3 social requests and uses 1 social tool. The page do 1 analytics request and uses 1 analytics tool. The page do 1 ad request and uses 1 ad 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.

Offenders
warn(90)Avoid third party cookies that is used to track the user.thirdPartyCookies

The page sets 1 third party cookie.

Third party cookies are used to track the user. They are automatically blocked in Safari and Firefox.

Offenders
  • .facebook.com

Page info

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.

Page info

Document

What the page says it is and how large it rendered.

TitleImage Background Remover | Xelta AIThe document title, shown in the browser tab and used by search results.
Layout viewport1350 × 3349 pxThe width the page laid out at, and the full height of the rendered document.

DOM structure

How much markup the browser has to build, style and lay out.

DOM elements1,776Very large, slows layout and styleTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth11How deeply elements are nested on average.
Max DOM depth24The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes0No embedded documents on this page.
Script tags73Number of script elements. More scripts usually means more main-thread work.

Storage and connection

What the page stored on the client, and the network it was tested on.

Local storage725 BData the page saved in localStorage, kept across visits.
Session storage412 BData kept in sessionStorage for this tab session only.
Connection type4GWhat the Network Information API reported for the test connection.

Resource hints

4 hints
dns-prefetch
  • https://media.xelta.ai/
preconnect
  • https://fonts.googleapis.com/
  • https://fonts.gstatic.com/
  • https://media.xelta.ai/

Technologies used to build the page

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.

Detected technologies

8 technologies

Third-party tools

19 tools

Data collected using Third Party Web version 0.29.2.

Cdn
  • Google Fonts
Survelliance
  • Google Fonts
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • Other Google APIs/SDKs
Surveillance
  • Google Fonts
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • Other Google APIs/SDKs
Tag-manager
  • Google Tag Manager
Utility
  • Cloudflare
  • Other Google APIs/SDKs
Social
  • Facebook
Analytics
  • Google Analytics
Ad
  • Google/Doubleclick Ads

Visual Metrics

Visual milestones

all times from navigation start
Speed Index1.60 show quickly the page looked done
First Visual Change0.60 sfirst paint reaches the screen
Last Visual Change4.57 sscreen stops changing · 3.97 s after first
≥95% rendered
≥99%
0.60 sFirst Visual Change
2.50 sVisual Complete 85%
2.80 sVisual Complete 95%
Visual Complete 99%3.23 s
Last Visual Change4.57 s
Visual Readiness3.97 s· first to last change
01.0 s2.0 s3.0 s4.0 s
Content milestones
Perception index
Visual progress
Visual progress at 0 s0.0s
Visual progress at 1.1 s1.1s
Visual progress at 1.7 s1.7s
Visual progress at 2.3 s2.3s
Visual progress at 2.8 s2.8s
Visual progress at 3.4 s3.4s
Visual progress at 4 s4.0s
Visual progress at 4.6 s4.6s
FCP0.94s
LCP2.65s
VC852.50s
Long tasks
0.0s0.9s1.8s2.8s3.7s4.6s

Google Web Vitals

340 msTTFB
Good
2.652 sLCP
Needs improvement
657 msTBT
Poor

Largest Contentful Paint

When the page main content is rendered, collected via the Largest Contentful Paint API. Read more about Largest Contentful Paint.

2.652 sLCP render time

Phase breakdown

  • TTFB340 ms
  • Resource load delay1.901 s
  • Resource load duration307 ms
  • Element render delay105 ms

Element

Element type
<img>
Size (w × h)
36005
URL
https://media.xelta....-nfmuxc4ahar.webp
Load time
2.615 s

DOM path

body > div#app-root > div:eq(1) > div > div > div:eq(0) > div#playground-section > div > div:eq(0) > div:eq(1) > div:eq(0) > div > div > div:eq(0) > div > div > div > div > div > img
LCP

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:

LCP element

Cumulative Layout Shift

How much the page's content shifts as it loads, collected via the Cumulative Layout Shift API.

0.000cumulative layout shift score

Elements that shifted

Sorted by individual shift score (higher = bigger shift). The top entries usually account for most of the page's CLS.

  • #10.000<div class="hidden lg:flex items-center flex-shrink-0 ml-auto"></div>
    body > div#app-root > header > div > div:eq(2)
Layout shift

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.

Browser Metrics

Navigation Timing
Extra timings

Server timings

Timing data the server chose to expose through Server-Timing response headers on the main document — typically backend time, cache status or experiment flags.

Server timings

3 entries
NameDurationDescription
cfCacheStatus0 msMISS
cfEdge37 ms–
cfOrigin121 ms–

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

Chrome internal metrics (CDP)33
Audio handlers0
Audio worklet processors0
Documents5
Frames3
JS event listeners1212
Layout objects1734
Media key sessions0
Media keys0
Nodes2667
Resources145
Context lifecycle state observers70
V8 per context datas4
Worker global scopes0
Uacss resources0
Rtc peer connections0
Resource fetchers5
Ad subframes0
Detached script states4
Array buffer contents9
Layout count12
Recalc style count403
Layout duration83
Recalc style duration304
Dev tools command duration17
Script duration1616
V8 compile duration4
Task duration3690
Task other duration1667
Thread time4
Process time8
JS heap used size22689804
JS heap total size38035456
First meaningful paint936

PageXray

How the page is built.

HTTP versionHTTP/2.0
Total requests117
Total domains17
Transfer size9.8 MB
Content size13.5 MB
Missing compression0
Cookies31 third-party

Main document

status 200 · 0 redirects

https://stf.xelta.ai/models/image_editing/stable-image-remove-background-workflow

HeaderValue
alt-svch3=":443"; ma=86400
cache-controlprivate, max-age=604800, must-revalidate
cf-cache-statusMISS
cf-raya37e98978e2a595f-DEL
content-encodingbr
content-typetext/html; charset=utf-8
dateTue, 08 Sep 2026 14:20:49 GMT
expect-ctmax-age=86400, enforce
last-modifiedTue, 08 Sep 2026 14:20:49 GMT
link</_next/static/media/47fe1b7cd6e6ed85-s.p.3bh2vc0w-r-ll.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/83afe278b6a6bb3c-s.p.2bn3s6zvc0dyp.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/8dfd6563338cbf38-s.p.2uos8jt9rp249.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/8e6fa89aa22d24ec-s.p.2o7m9ogm38dql.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/9d0c71fa164043fa-s.p.2snziqcncuet5.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/a218039a3287bcfd-s.p.43zbiuwnnoiok.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/c875c6f5d3e977ac-s.p.1h18_wedhzk4h.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/ce62453a442c7f35-s.p.0a0h245ktd4x0.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/e2334d715941921e-s.p.3o_v2fun1jzxk.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/e8f2fbee2754df70-s.p.1dqa_6e_ad4sj.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/chunks/2d1gbxt7sbqx3.css>; rel=preload; as="style", </_next/static/chunks/2d9-f2l59svdc.css>; rel=preload; as="style", </_next/static/chunks/178pt4rau30r7.css>; rel=preload; as="style"
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
referrer-policysame-origin strict-origin-when-cross-origin
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=vJrjf1co5J8CgowU9YllB75gcFIKHirGhibMNzQUghfmYohj5quX7sB%2FfEbMeJzIkznqKrZ9CpXP545yQ3%2BkeKfsJYBmGYnrkEQPRLAPrv2bko7M2JMNaQiKTEO%2B5Q%3D%3D"}]}
servercloudflare
server-timingcfCacheStatus;desc="MISS" cfEdge;dur=37,cfOrigin;dur=121
speculation-rules"/cdn-cgi/speculation"
strict-transport-securitymax-age=31536000; includeSubDomains; preload
varyrsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block

Response codes

200
10791.5%
202
10.9%
204
54.3%
401
21.7%
404
21.7%

Requests and sizes per content type

9 types

Transfer size9.8 MB

  • image82.2%
  • javascript13.3%
  • font3.0%
  • css0.91%
  • html0.32%
  • json0.11%
  • favicon0.09%
  • plain0.02%
  • other0.00%

Content size13.5 MB

  • image59.3%
  • javascript32.0%
  • css4.9%
  • font2.1%
  • html1.6%
  • json0.08%
  • favicon0.06%
  • other0.00%
  • plain0.00%

Requests113

  • javascript42.5%
  • image26.5%
  • font8.8%
  • json8.0%
  • plain5.3%
  • css3.5%
  • other3.5%
  • html0.88%
  • favicon0.88%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b32.2 KB223.5 KB1
css0 b90.6 KB670.6 KB4
javascript0 b1.3 MB4.3 MB48
image0 b8.0 MB8.0 MB30
font0 b296.1 KB292.4 KB10
favicon0 b8.9 KB8.3 KB1
other0 b464 B151 B4
json0 b10.7 KB10.7 KB9
plain0 b1.8 KB2 B6
Total0 b9.8 MB13.5 MB113

Data per domain

17 domains
DomainTotal download timeTransfer SizeContent SizeRequests
stf.xelta.ai13.103 s9.0 MB11.5 MB89
fonts.googleapis.com151 ms923 B1.2 KB1
www.googletagmanager.com657 ms300.3 KB888.0 KB2
static.cloudflareinsights.com82 ms10.1 KB29.6 KB1
media.xelta.ai436 ms206.6 KB205.5 KB2
connect.facebook.net179 ms243.2 KB881.1 KB2
stb.xelta.ai407 ms6.8 KB9.2 KB6
analytics.google.com194 msN/A0 b1
stats.g.doubleclick.net150 ms555 B0 b1
www.google.co.in160 ms408 B42 B1
us-assets.i.posthog.com1.629 s69 B0 b2
cms-b.stg2.xelta.ai1.002 s1.1 KB69 B2
devpmt.xelta.ai317 ms743 B117 B2
mpc-prod-27-s6uit34pua-uk.a.run.app439 msN/A0 b1
www.facebook.com56 ms424 B0 b1
us.i.posthog.com1.175 s496 B174 B1
telemetry.matchbestsoftware.online209 ms286 B2 B2

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 week1 year
Last modified0 seconds2 hours38 weeks

Requests loaded after onLoad event

66 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript565.7 KB15
image7.4 MB29
font0 b0
favicon8.9 KB1
plain1.8 KB6
other0 b3
json9.5 KB8
Total7.9 MB66

Requests loaded after onContentLoad

66 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript565.7 KB15
image7.4 MB29
font0 b0
favicon8.9 KB1
plain1.8 KB6
other0 b3
json9.5 KB8
Total7.9 MB66

Third party

Third party requests categorised by Third party web version 0.29.2.

Third-party requests19
Tools7
Categories7
Third-party cookies1

Categories

7 categories

Requests by category19

  • survelliance9 req · 6 tools47.4%
  • social3 req · 1 tool15.8%
  • tag-manager2 req · 1 tool10.5%
  • utility2 req · 2 tools10.5%
  • cdn1 req · 1 tool5.3%
  • analytics1 req · 1 tool5.3%
  • ad1 req · 1 tool5.3%

Third party requests and tools

7 categories
cdnGoogle Fonts1 requests · 1 tool
survellianceGoogle FontsGoogle Tag ManagerFacebook+ 3 more9 requests · 6 tools
tag-managerGoogle Tag Manager2 requests · 1 tool
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
socialFacebook3 requests · 1 tool
analyticsGoogle Analytics1 requests · 1 tool
adGoogle/Doubleclick Ads1 requests · 1 tool

Unmatched third party domains

4 domains

Domains that didn't match any tool in Third party web. If you are sure they are third party domains, please do a PR to that project. You can also fine tune the list using --firstParty.

  • us-assets.i.posthog.com
  • mpc-prod-27-s6uit34pua-uk.a.run.app
  • us.i.posthog.com
  • telemetry.matchbestsoftware.online
Third party cookies1
.facebook.com1 cookie

First party vs third party

101 first · 16 third party

Transfer size9.8 MB

  • First party9.2 MB94.4%
  • Third party556.7 KB5.6%

Content size13.5 MB

  • First party11.7 MB87.0%
  • Third party1.8 MB13.0%

Requests117

  • First party10186.3%
  • Third party1613.7%

First party requests and sizes per content type

101 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b32.2 KB223.5 KB1
css0 b89.7 KB669.4 KB3
javascript0 b779.4 KB2.6 MB43
image0 b8.0 MB8.0 MB29
font0 b296.1 KB292.4 KB10
favicon0 b8.9 KB8.3 KB1
other0 b464 B151 B4
json0 b10.7 KB10.7 KB8
plain0 b584 B0 b1
TotalN/A9.2 MB11.7 MB101

Third party requests and sizes per content type

16 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b923 B1.2 KB1
javascript0 b553.6 KB1.8 MB5
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
plain0 b1.2 KB2 B5
json0 b0 b0 b1
TotalN/A556.7 KB1.8 MB16