labs.google speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 12:58 UTC. Grade B (87/100), with the screenshots, the timings and the fixes that matter.

https://labs.google/

20 October 2026 at 12:58 UTC · Free test · report pt_a8d3042b7605
Grade
B
87/100
Performance93/100
Structure77/100

12 audit(s) passed, 4 need work

First byte (TTFB)154 msmeasured from this server
Fully loaded1.09 sfirst byte + slowest asset
Requests26document + assets
Page weight1.75 MBcompressed transfer
HTML document49.7 KBgzip
ProtocolHTTP/3Google Frontend

Where the first byte went

  • DNS lookup 44 ms 29%
  • TCP connect 24 ms 16%
  • Server wait 86 ms 56%

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 bytefaster than 98% of 4,999 pages tested here154 ms against a median of 449 ms
Page weightheavier than 78% of 4,999 pages tested here1.75 MB against a median of 650.3 KB
Fully loadedfaster than 90% of 4,999 pages tested here1.09 s against a median of 1.84 s
Requestssends more requests than 100% of 4,999 pages tested here26 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 server answered in 154 ms, which is fast: almost all of the wait is the page itself, not the host.
  • The page transfers 1.75 MB over 26 request(s). Images files are 97% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives gzip-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • The largest element painted at 1.13 s, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.004), so nothing jumps under the reader's cursor.
  • The main thread was blocked for 110 ms in total, which is not enough to feel.

Fix first: Image delivery and format - Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

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.

Desktop screenshot of labs.google
Desktop 1366 × 768 · 41.8 KB · page is 5518 px tall
Mobile screenshot of labs.google
Mobile 390 × 844 · 23.0 KB · page is 4234 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 paint1.13 sgood is under 2.5 s
Cumulative layout shift0.004under 0.1 is stable
Total blocking time110 mslong tasks during load
First contentful paint856 msfirst content on screen
Browser page weight19.36 MB48 request(s), scripts included
Failed requests4blocked or unreachable
Largest contentful paint1.13 s
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.004
Goodgood under 0.1, poor over 0.25
Total blocking time110 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
1.70 MB 97%

Transfer size, compressed as sent. 26 request(s) in total, 1.75 MB across all of them.

Top issues

Image delivery and format

high impact

1 image(s) over 200 KB and 0 large image(s) still served as JPEG or PNG.

Fix: Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

Render-blocking resources

high impact

4 render-blocking resource(s) in the document head (1 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 impact

The page transfers 1.75 MB across 26 request(s), with the document itself at 49.7 KB.

Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.

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

IMAGESlabs.google/assets/images/tools/ai-edge-foresight.…
931 ms
IMAGESlabs.google/assets/images/tools/cc.webp
929 ms
IMAGESlabs.google/assets/images/tools/playground.webp
927 ms
IMAGESlabs.google/assets/images/graduation/ai_studio_bg_…
917 ms
IMAGESlabs.google/assets/images/graduation/gemini_bg.webp
916 ms
IMAGESlabs.google/assets/images/graduation/flow_music_bg…
914 ms
IMAGESlabs.google/assets/images/tools/playground-feature…
907 ms
IMAGESlabs.google/assets/images/tools/learn-your-way.webp
907 ms
IMAGESlabs.google/assets/images/graduation/flow_bg_ed_1.…
898 ms
IMAGESlabs.google/assets/images/tools/stax.webp
898 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://labs.google/assets/images/tools/ai-edge-foresight.webpimages200931 ms24.2 KB
https://labs.google/assets/images/tools/cc.webpimages200929 ms60.7 KB
https://labs.google/assets/images/tools/playground.webpimages200927 ms113.2 KB
https://labs.google/assets/images/graduation/ai_studio_bg_ed_1.webpimages200917 ms23.2 KB
https://labs.google/assets/images/graduation/gemini_bg.webpimages200916 ms18.0 KB
https://labs.google/assets/images/graduation/flow_music_bg.webpimages200914 ms15.5 KB
https://labs.google/assets/images/tools/playground-featured-hero.webpimages200907 ms360.4 KB
https://labs.google/assets/images/tools/learn-your-way.webpimages200907 ms108.5 KB
https://labs.google/assets/images/graduation/flow_bg_ed_1.webpimages200898 ms190.3 KB
https://labs.google/assets/images/tools/stax.webpimages200898 ms36.2 KB
https://labs.google/assets/images/tools/dreambeans.webpimages200886 ms79.0 KB
https://labs.google/assets/images/tools/play-with-putty.webpimages200883 ms10.8 KB
https://labs.google/assets/images/tools/google-flow-featured-hero.webpimages200877 ms180.8 KB
https://labs.google/assets/images/graduation/notebook_bg.webpimages200868 ms26.8 KB
https://labs.google/assets/images/tools/dreambeans-hero-poster.webpimages200864 ms142.3 KB
https://labs.google/assets/images/tools/cc-hero-poster.webpimages200863 ms38.8 KB
https://labs.google/assets/images/tools/flow-music-poster.webpimages200861 ms77.3 KB
https://labs.google/assets/images/tools/ai-edge-eloquent.webpimages200852 ms55.2 KB
https://labs.google/assets/images/tools/vantage.webpimages200852 ms34.6 KB
https://labs.google/assets/images/tools/computational-discovery.webpimages200852 ms32.3 KB
https://labs.google/assets/images/tools/hypothesis-generation.webpimages200852 ms28.7 KB
https://labs.google/assets/images/tools/disco.webpimages200852 ms25.7 KB
https://labs.google/assets/images/tools/literature-insights.webpimages200852 ms23.5 KB
https://labs.google/assets/images/tools/opal.webpimages200852 ms23.4 KB
https://labs.google/assets/images/tools/jules.webpimages200852 ms9.0 KB
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