ibiblio.org speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 15:04 UTC. Grade A (93/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 55 ms 14%
- TCP connect 98 ms 25%
- Server wait 248 ms 62%
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 400 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 256.1 KB over 5 request(s), which is lean. Css files are 74% of it, so split the stylesheet so the first screen does not download the whole site.
- The HTML itself arrives gzip-compressed.
- It runs over HTTP/2, so the assets share a connection instead of opening one each.
- The largest element painted at 1.51 s, inside the 2.5 s Google calls good.
- The main thread was blocked for 8 ms in total, which is not enough to feel.
Fix first: Compress text responses - Turn on brotli (preferred) or gzip for text/css, javascript and text/html in the web server. This is the cheapest win available on almost any site.
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. 5 request(s) in total, 256.1 KB across all of them.
Top issues
Compress text responses
high impact1 text response(s) of 10 KB or more are sent uncompressed, and the document itself is not compressed. That is 190.2 KB of compressible text.
Fix: Turn on brotli (preferred) or gzip for text/css, javascript and text/html in the web server. This is the cheapest win available on almost any site.
TLS certificate validity
high impactThe certificate for ibiblio.org has 11 day(s) left.
Fix: Renew automatically (certbot with a working renewal timer) and alert on the certificate, not on the renew command, so a silent failure is caught weeks before a browser warning.
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://ibiblio.org/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=1.25.0 | images | 200 | 453 ms | 28.2 KB |
| https://ibiblio.org/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=1.25.0 | images | 200 | 445 ms | 29.9 KB |
| https://ibiblio.org/.within.website/x/xess/xess.min.css?cachebuster=1.25.0 | css | 200 | 427 ms | 190.2 KB |
| https://ibiblio.org/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=1.25.0 | javascript | 200 | 351 ms | 5.7 KB |
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