pages.github.com speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 12:34 UTC. Grade B (83/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 68 ms 23%
- TCP connect 59 ms 20%
- Server wait 172 ms 58%
Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.
How this page compares
Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.
What these numbers mean
- The first byte arrived in 299 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 2.12 MB over 18 request(s). Images files are 98% of it, so resize and recompress the largest images before anything else.
- The HTML itself arrives gzip-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- The largest element painted at 576 ms, inside the 2.5 s Google calls good.
- Layout stayed still (CLS 0.019), so nothing jumps under the reader's cursor.
- The main thread was blocked for 66 ms in total, which is not enough to feel.
Fix first: Image delivery and format - Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.
Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.
Screenshot
What the page looks like
Loaded in headless Chromium on this server. Click an image to open it full size.
Browser render
The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 18 request(s) in total, 2.12 MB across all of them.
Top issues
Image delivery and format
high impact3 image(s) over 200 KB and 8 large image(s) still served as JPEG or PNG.
Fix: Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.
Total page weight
high impactThe page transfers 2.12 MB across 18 request(s), with the document itself at 3.8 KB.
Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.
Avoid extra redirects
medium impact1 redirect hop(s) before the page load started, each one a full round trip before the first byte.
Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.
Mobile viewport
medium impactNo viewport meta tag, so a phone renders the desktop layout scaled down.
Fix: Add a viewport meta tag with width=device-width and an initial scale of 1.
Strict-Transport-Security
low impactHSTS is not set, so the first visit on a hostile network can still be downgraded to HTTP.
Fix: Send Strict-Transport-Security with a max-age of at least six months. Add includeSubDomains once every subdomain is HTTPS.
Waterfall
Slowest requests
Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party
| Request | Type | Status | Time | Size |
|---|---|---|---|---|
| https://pages.github.com/images/[email protected] | images | 200 | 1.02 s | 112.4 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 1.01 s | 94.5 KB |
| https://pages.github.com/js/application.js | javascript | 200 | 929 ms | 2.1 KB |
| https://pages.github.com/favicon.ico | images | 200 | 918 ms | 1.1 KB |
| https://pages.github.com/css/pages.css | css | 200 | 916 ms | 3.3 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 907 ms | 144.2 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 904 ms | 153.0 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 896 ms | 402.7 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 891 ms | 90.9 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 891 ms | 73.5 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 879 ms | 425.2 KB |
| https://pages.github.com/images/slideshow/bootstrap.png | images | 200 | 874 ms | 153.2 KB |
| https://pages.github.com/images/logo.svg | images | 200 | 863 ms | 2.4 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 861 ms | 127.9 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 857 ms | 114.9 KB |
| https://pages.github.com/js/jquery.js | javascript | 200 | 853 ms | 32.3 KB |
| https://pages.github.com/images/[email protected] | images | 200 | 840 ms | 232.0 KB |
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