youdao.com speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 14:12 UTC. Grade C (72/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 80 ms 9%
- TCP connect 228 ms 26%
- Server wait 570 ms 65%
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 took 878 ms. Everything else waits for that number, so the server is where to start: caching, a slow query, or an overloaded host.
- The page transfers 953.0 KB over 26 request(s). Javascript files are 70% of it, so defer what is not needed for the first screen, and drop tags nobody uses.
- The HTML itself arrives br-compressed.
- It runs over HTTP/2, so the assets share a connection instead of opening one each.
- 95% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
Fix first: Server response time (TTFB) - Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.
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.
The headless browser did not capture this page when the test ran, so only the server measurements are shown.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 26 request(s) in total, 953.0 KB across all of them.
Top issues
Server response time (TTFB)
high impactThe first byte arrived after 878 ms. Of that, 570 ms was the server thinking and 308 ms was connection setup. A first byte under 400 ms is what a visitor feels as instant.
Fix: Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.
Render-blocking resources
high impact6 render-blocking resource(s) in the document head (5 script(s), 1 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 youdao.com 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.
Total page weight
medium impactThe page transfers 953.0 KB across 26 request(s), with the document itself at 47.5 KB.
Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.
Cache static assets
medium impact6 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.
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://luna-dict-community.nosdn.127.net/ae3b4b07a09823bf38d7bb815c6ea139.png 3rd party | images | 200 | 1.89 s | 1.3 KB |
| https://luna-dict-community.nosdn.127.net/db2266e756ded7094c5dcbeebd1e6a8b.png 3rd party | images | 200 | 1.38 s | 4.3 KB |
| https://shared-https.ydstatic.com/images/favicon.ico 3rd party | images | 200 | 1.38 s | 1.4 KB |
| https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.css 3rd party | css | 200 | 1.29 s | 4.4 KB |
| https://luna-dict-community.nosdn.127.net/64e63d8a45a00599d8f4eb67b70f6883.png 3rd party | images | 200 | 1.21 s | 1.4 KB |
| https://ydlunacommon-cdn.nosdn.127.net/d4420720818e84a2cefb493dc0315992.png 3rd party | images | 200 | 1.18 s | 15.1 KB |
| https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f1c703706cf8c4c39a7520.png 3rd party | images | 200 | 1.16 s | 73.2 KB |
| https://luna-dict-community.nosdn.127.net/84cbd355815f9b4958723ebffaddac96.png 3rd party | images | 200 | 1.16 s | 1.2 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/d6c89ea.js 3rd party | javascript | 200 | 1.15 s | 97.8 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/0fe9a8d.js 3rd party | javascript | 200 | 1.10 s | 24.0 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/148525f.js 3rd party | javascript | 200 | 1.08 s | 20.6 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/67bb73f.js 3rd party | javascript | 200 | 1.08 s | 17.5 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/9b25423.js 3rd party | javascript | 200 | 1.08 s | 1.3 KB |
| https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.js 3rd party | javascript | 200 | 1.08 s | 39.1 KB |
| https://shared.ydstatic.com/js/rlog/v1.js 3rd party | javascript | 200 | 1.07 s | 2.6 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.js 3rd party | javascript | 200 | 1.07 s | 63 B |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/aa58964.js 3rd party | javascript | 200 | 1.06 s | 7.6 KB |
| https://shared.ydstatic.com/js/yadk/1.1.3.js 3rd party | javascript | 200 | 1.05 s | 3.7 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/a621b0c.js 3rd party | javascript | 200 | 1.05 s | 27.2 KB |
| https://shared.ydstatic.com/dict/yd_products/online/1.1.5/dist/lib/yd-nav.js 3rd party | javascript | 200 | 1.05 s | 14.9 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/76bdd54.js 3rd party | javascript | 200 | 1.03 s | 27.0 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/fonts/element-icons.4520188.ttf 3rd party | other | 200 | 1.03 s | 54.6 KB |
| https://shared.ydstatic.com/market/souti/web_dict/fonts/AvertaStd-Bold.eot#iefix 3rd party | other | 200 | 988 ms | 55.7 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/fonts/element-icons.313f7da.woff 3rd party | fonts | 200 | 982 ms | 27.5 KB |
| https://shared.ydstatic.com/market/souti/web_dict/online/3.1.0/dist/client/1f6a5d5.js 3rd party | javascript | 200 | 976 ms | 381.8 KB |
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