7-zip.org speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 14:21 UTC. Grade B (88/100), with the screenshots, the timings and the fixes that matter.

https://7-zip.org/

20 October 2026 at 14:21 UTC · Free test · report pt_98c39709c828
Grade
B
88/100
Performance89/100
Structure86/100

12 audit(s) passed, 4 need work

First byte (TTFB)605 msmeasured from this server
Fully loaded1.36 sfirst byte + slowest asset
Requests3document + assets
Page weight9.0 KBcompressed transfer
HTML document6.6 KBno compression
ProtocolHTTP/2nginx/1.24.0 (Ubuntu)

Where the first byte went

  • DNS lookup 59 ms 10%
  • TCP connect 168 ms 28%
  • Server wait 378 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

First byteslower than 63% of 4,999 pages tested here605 ms against a median of 448 ms
Page weightlighter than 95% of 4,999 pages tested here9.0 KB against a median of 650.5 KB
Fully loadedfaster than 80% of 4,999 pages tested here1.36 s against a median of 1.84 s
Requestssends fewer requests than 95% of 4,999 pages tested here3 against a median of 26

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 605 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 9.0 KB over 3 request(s), which is lean.
  • It runs over HTTP/2, so the assets share a connection instead of opening one each.
  • The largest element painted at 812 ms, inside the 2.5 s Google calls good.

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.

Screenshot

What the page looks like

Loaded in headless Chromium on this server. Click an image to open it full size.

Mobile screenshot of 7-zip.org
Mobile 390 × 844 · 41.8 KB · page is 2121 px tall

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.

Largest contentful paint812 msgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking timenone over 50 mslong tasks during load
First contentful paint812 msfirst content on screen
Browser page weight9.0 KB3 request(s), scripts included
Largest contentful paint812 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking timenone over 50 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 1 request
1.4 KB 15%
Css 1 request
1005 B 11%

Transfer size, compressed as sent. 3 request(s) in total, 9.0 KB across all of them.

Top issues

Server response time (TTFB)

high impact

The first byte arrived after 605 ms. Of that, 378 ms was the server thinking and 227 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.

Cache static assets

medium impact

2 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.

Mobile viewport

medium impact

No viewport meta tag, so a phone renders the desktop layout scaled down.

Fix: Add a viewport meta tag with width=device-width and an initial scale of 1.

Strict-Transport-Security

low impact

HSTS 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

CSS7-zip.org/style.css
755 ms
IMAGES7-zip.org/7ziplogo.png
668 ms

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

RequestTypeStatusTimeSize
https://7-zip.org/style.csscss200755 ms1005 B
https://7-zip.org/7ziplogo.pngimages200668 ms1.4 KB
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