www.zhihu.com/signin?next=%2F speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 12:39 UTC. Grade C (74/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 69 ms 10%
- TCP connect 91 ms 13%
- Server wait 528 ms 77%
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 689 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 2.07 MB over 26 request(s). Javascript files are 98% 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/3, so the assets share a connection instead of opening one each.
- 99% 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 1.30 s, inside the 2.5 s Google calls good.
- Layout stayed still (CLS 0.005), so nothing jumps under the reader's cursor.
- The main thread was blocked for 1.22 s, so taps and scrolling wait while scripts run.
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.
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, 2.07 MB across all of them.
Top issues
Server response time (TTFB)
high impactThe first byte arrived after 689 ms. Of that, 528 ms was the server thinking and 160 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 impact3 render-blocking resource(s) in the document head (0 script(s), 3 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.
Total page weight
high impactThe page transfers 2.07 MB across 26 request(s), with the document itself at 15.0 KB.
Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.
Third-party weight
medium impact4 third-party host(s) serve 2.05 MB 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.
JavaScript weight
medium impact2 JavaScript file(s) over 200 KB: main.app.7643e4e1d5af880812b1.js (712.4 KB), 3964.app.cb10463d9c412aa84d0c.js (917.9 KB)
Fix: Split routes, remove unused dependencies, and prefer a two-file build (one pinned library, one application bundle) over many small ones.
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://static.zhihu.com/heifetz/lib-29107295.app.42d07f814b7b05187671.js 3rd party | javascript | 200 | 1.12 s | 25.2 KB |
| https://pic2.zhimg.com/80/v2-f6b1f64a098b891b4ea1e3104b5b71f6_720w.png 3rd party | images | 200 | 998 ms | 8.6 KB |
| https://static.zhihu.com/event/[email protected]/umd/react-dom.production.min.js 3rd party | javascript | 200 | 983 ms | 39.2 KB |
| https://pic3.zhimg.com/80/v2-d0289dc0a46fc5b15b3363ffa78cf6c7.png 3rd party | images | 200 | 980 ms | 3.9 KB |
| https://static.zhihu.com/heifetz/vendor.92ed966b299812d66d9f.js 3rd party | javascript | 200 | 969 ms | 70.8 KB |
| https://static.zhihu.com/heifetz/lib-79b5cf47.app.8b6b6bf4b6d894db9b07.js 3rd party | javascript | 200 | 957 ms | 16.1 KB |
| https://static.zhihu.com/heifetz/assets/wechat-share-logo.39ea9ecd.png 3rd party | images | 200 | 953 ms | 8.3 KB |
| https://static.zhihu.com/event/[email protected]/umd/react.production.min.js 3rd party | javascript | 200 | 951 ms | 4.6 KB |
| https://static.zhihu.com/heifetz/lib-75fc9c18.app.3db651c252e14ef6658e.js 3rd party | javascript | 200 | 943 ms | 19.2 KB |
| https://static.zhihu.com/event/[email protected]/umd/react-dom-server.browser.production.min.js 3rd party | javascript | 200 | 940 ms | 7.7 KB |
| https://pica.zhimg.com/80/v2-ccdb7828c12afff31a27e51593d23260_720w.png 3rd party | images | 200 | 936 ms | 8.2 KB |
| https://static.zhihu.com/heifetz/lib-f3572862.app.6a0660d646c34c296ccc.js 3rd party | javascript | 200 | 935 ms | 14.1 KB |
| https://static.zhihu.com/heifetz/main.app.7643e4e1d5af880812b1.js 3rd party | javascript | 200 | 932 ms | 712.4 KB |
| https://static.zhihu.com/heifetz/runtime.app.e1ae87e77bcf1dafd2aa.js 3rd party | javascript | 200 | 929 ms | 7.9 KB |
| https://static.zhihu.com/heifetz/lib-38cf5c11.app.9cc2587a8ededadc56aa.js 3rd party | javascript | 200 | 926 ms | 13.5 KB |
| https://static.zhihu.com/heifetz/chunks/main-signin-routes.e0ee883225aecc82ad90.js 3rd party | javascript | 200 | 916 ms | 2.1 KB |
| https://static.zhihu.com/heifetz/chunks/shared-1dffcf43329e08de9bcf385e1895bae6667163e6.8761cf1ec3d8a31ee5e1.js 3rd party | javascript | 200 | 913 ms | 16.1 KB |
| https://static.zhihu.com/heifetz/3964.app.cb10463d9c412aa84d0c.js 3rd party | javascript | 200 | 907 ms | 917.9 KB |
| https://static.zhihu.com/event/wza/4633_1/aria.js?appid=a3637ace5dc3a347f6863b0bac487599 3rd party | javascript | 200 | 907 ms | 117.4 KB |
| https://static.zhihu.com/heifetz/lib-330004dc.app.dd0acc0107ebdb1bc7b8.js 3rd party | javascript | 200 | 907 ms | 21.3 KB |
| https://static.zhihu.com/heifetz/lib-0e5ce61e.app.e94cd4d937158eb6ccc8.js 3rd party | javascript | 200 | 907 ms | 18.2 KB |
| https://static.zhihu.com/heifetz/lib-2ec050f6.app.bab17b62fce0eb964af4.js 3rd party | javascript | 200 | 907 ms | 15.2 KB |
| https://static.zhihu.com/heifetz/lib-9b20c40c.app.196be891f10931dae13e.js 3rd party | javascript | 200 | 907 ms | 14.3 KB |
| https://static.zhihu.com/heifetz/lib-83b0f42f.app.4420ca5f1ac8e00bb273.js 3rd party | javascript | 200 | 907 ms | 10.5 KB |
| https://static.zhihu.com/heifetz/lib-fae4f1f9.app.2a53c780e75bf169b2e0.js 3rd party | javascript | 200 | 907 ms | 9.7 KB |
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