slashdot.org speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 13:18 UTC. Grade A (93/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 57 ms 27%
- TCP connect 31 ms 14%
- Server wait 127 ms 59%
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 215 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 387.3 KB over 26 request(s). Javascript files are 40% of it, so defer what is not needed for the first screen, and drop tags nobody uses.
- The HTML itself arrives zstd-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- 91% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
- The largest element painted at 540 ms, inside the 2.5 s Google calls good.
- Layout stayed still (CLS 0.074), so nothing jumps under the reader's cursor.
Fix first: Render-blocking resources - Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.
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. 26 request(s) in total, 387.3 KB across all of them.
Top issues
Render-blocking resources
high impact8 render-blocking resource(s) in the document head (3 script(s), 5 stylesheet(s)). The page cannot paint until each one arrives.
Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.
TLS certificate validity
high impactThe certificate for slashdot.org has 21 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.
Cache static assets
medium impact1 asset(s) answer without a Cache-Control max-age, so browsers revalidate them on every visit.
Fix: Version filenames on change and serve them with a long max-age plus immutable. That is what makes a returning visitor fast.
Third-party weight
medium impact1 third-party host(s) serve 350.7 KB of this page. Each one is another DNS lookup, TLS handshake and point of failure you do not control.
Fix: Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.
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://a.fsdn.com/sd/topics/privacy_64.png 3rd party | images | 200 | 961 ms | 4.8 KB |
| https://a.fsdn.com/sd/topics/business_64.png 3rd party | images | 200 | 923 ms | 5.5 KB |
| https://slashdot.org/images/njs.gif?579 | images | 200 | 919 ms | 49 B |
| https://a.fsdn.com/sd/topics/applelaptop_64.png 3rd party | images | 200 | 918 ms | 2.2 KB |
| https://a.fsdn.com/sd/NewsletterSubscription.png?v=2 3rd party | images | 200 | 915 ms | 88.5 KB |
| https://a.fsdn.com/sd/topics/wine_64.png 3rd party | images | 200 | 914 ms | 3.4 KB |
| https://a.fsdn.com/sd/topics/government_64.png 3rd party | images | 200 | 910 ms | 3.6 KB |
| https://a.fsdn.com/sd/topics/wireless_64.png 3rd party | images | 200 | 910 ms | 3.2 KB |
| https://a.fsdn.com/sd/topics/movies_64.png 3rd party | images | 200 | 908 ms | 2.7 KB |
| https://a.fsdn.com/sd/topics/security_64.png 3rd party | images | 200 | 901 ms | 4.3 KB |
| https://a.fsdn.com/sd/topics/power_64.png 3rd party | images | 200 | 900 ms | 4.1 KB |
| https://a.fsdn.com/sd/classic.css?0ab6e7235c60a5c8 3rd party | css | 200 | 899 ms | 31.9 KB |
| https://a.fsdn.com/con/js/sandiego/floating-unit.js?2026-09-15 3rd party | javascript | 200 | 893 ms | 10.8 KB |
| https://a.fsdn.com/sd/topics/mars_64.png 3rd party | images | 200 | 893 ms | 6.8 KB |
| https://slashdot.org/favicon.ico | images | 200 | 890 ms | 775 B |
| https://a.fsdn.com/sd/topics/ai_64.png 3rd party | images | 200 | 889 ms | 6.8 KB |
| https://a.fsdn.com/con/css/sftheme/sandiego/cmp.css?2026-09-15 3rd party | css | 200 | 884 ms | 1.0 KB |
| https://a.fsdn.com/sd/js/scripts/asg_embed.js?0ab6e7235c60a5c8 3rd party | javascript | 200 | 883 ms | 28 B |
| https://a.fsdn.com/con/js/sandiego/maxnav.js?2026-09-15 3rd party | javascript | 200 | 877 ms | 363 B |
| https://a.fsdn.com/sd/css/app.css?0ab6e7235c60a5c8 3rd party | css | 200 | 872 ms | 22.1 KB |
| https://a.fsdn.com/sd/ccpa-optout.png 3rd party | images | 200 | 870 ms | 1.0 KB |
| https://a.fsdn.com/sd/all-minified.js?0ab6e7235c60a5c8 3rd party | javascript | 200 | 869 ms | 124.3 KB |
| https://a.fsdn.com/sd/topics/mozilla_64.png 3rd party | images | 200 | 866 ms | 2.8 KB |
| https://a.fsdn.com/sd/js/scripts/admanager.js?0ab6e7235c60a5c8 3rd party | javascript | 200 | 863 ms | 32 B |
| https://a.fsdn.com/con/js/sftheme/cmp-slashdot.js?2026-09-15 3rd party | javascript | 200 | 862 ms | 20.5 KB |
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