react.dev speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 15:36 UTC. Grade A (99/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 65 ms 23%
- TCP connect 45 ms 16%
- Server wait 170 ms 60%
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 281 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 109.9 KB over 26 request(s). Images files are 61% of it, so resize and recompress the largest images before anything else.
- The HTML itself arrives br-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- The largest element painted at 588 ms, inside the 2.5 s Google calls good.
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, 109.9 KB across all of them.
No failing audits: the page passes everything this test can check.
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://react.dev/_next/image?url=%2Fimages%2Fuwu.png&w=640&q=75 | images | 200 | 1.10 s | 18.2 KB |
| https://react.dev/images/home/conf2021/debbie.jpg | images | 200 | 1.10 s | 809 B |
| https://react.dev/_next/image?url=%2Fimages%2Fuwu.png&w=128&q=75 | images | 200 | 1.09 s | 3.4 KB |
| https://react.dev/_next/image?url=%2Fimages%2Fuwu.png&w=384&q=75 | images | 200 | 1.09 s | 11.5 KB |
| https://react.dev/images/home/conf2021/brian.jpg | images | 200 | 1.02 s | 1.4 KB |
| https://react.dev/images/home/conf2021/juan.jpg | images | 200 | 1.01 s | 1018 B |
| https://react.dev/_next/image?url=%2Fimages%2Fuwu.png&w=64&q=75 | images | 200 | 1.01 s | 1.8 KB |
| https://react.dev/images/home/conf2021/rick.jpg | images | 200 | 999 ms | 1.2 KB |
| https://react.dev/images/home/conf2021/steven.jpg | images | 200 | 998 ms | 3.8 KB |
| https://react.dev/images/home/conf2021/shaundai.jpg | images | 200 | 998 ms | 2.2 KB |
| https://react.dev/images/home/conf2021/aakansha.jpg | images | 200 | 994 ms | 1.3 KB |
| https://react.dev/images/home/conf2021/xuan.jpg | images | 200 | 993 ms | 786 B |
| https://react.dev/images/home/conf2021/roman.jpg | images | 200 | 992 ms | 981 B |
| https://react.dev/images/home/conf2021/daishi.jpg | images | 200 | 983 ms | 1.1 KB |
| https://react.dev/images/home/conf2021/robert.jpg | images | 200 | 976 ms | 1.2 KB |
| https://react.dev/images/home/conf2021/lauren.jpg | images | 200 | 974 ms | 5.4 KB |
| https://react.dev/images/home/conf2021/shruti.jpg | images | 200 | 970 ms | 1.2 KB |
| https://react.dev/images/home/conf2021/andrew.jpg | images | 200 | 963 ms | 2.0 KB |
| https://react.dev/images/home/conf2021/cover.svg | images | 200 | 960 ms | 0 B |
| https://react.dev/images/home/conf2021/diego.jpg | images | 200 | 954 ms | 1.3 KB |
| https://react.dev/images/home/conf2021/sarah.jpg | images | 200 | 945 ms | 1.2 KB |
| https://react.dev/images/home/conf2021/eric.jpg | images | 200 | 942 ms | 1.3 KB |
| https://react.dev/images/home/conf2021/delba.jpg | images | 200 | 942 ms | 1.2 KB |
| https://react.dev/images/home/conf2021/linton.jpg | images | 200 | 924 ms | 1.1 KB |
| https://react.dev/images/home/conf2021/rachel.jpg | images | 200 | 919 ms | 2.2 KB |
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