www.tumblr.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 12:34 UTC. Grade A (96/100), with the screenshots, the timings and the fixes that matter.

https://www.tumblr.com/

20 October 2026 at 12:34 UTC · Free test · report pt_f6aae964bc7e
Grade
A
96/100
Performance96/100
Structure95/100

14 audit(s) passed, 2 need work

First byte (TTFB)333 msmeasured from this server
Fully loaded1.28 sfirst byte + slowest asset
Requests11document + assets
Page weight302.7 KBcompressed transfer
HTML document21.9 KBbr
ProtocolHTTP/3nginx
Third-party280.2 KBother hosts

Where the first byte went

  • DNS lookup 39 ms 12%
  • TCP connect 38 ms 11%
  • Server wait 256 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

First bytefaster than 68% of 4,999 pages tested here333 ms against a median of 449 ms
Page weightlighter than 72% of 4,999 pages tested here302.7 KB against a median of 650.5 KB
Fully loadedfaster than 84% of 4,999 pages tested here1.28 s against a median of 1.84 s
Requestssends fewer requests than 87% of 4,999 pages tested here11 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 arrived in 333 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 302.7 KB over 11 request(s), which is lean. Fonts files are 46% of it, so subset the fonts and stop preloading the weights you do not render.
  • The HTML itself arrives br-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • 93% 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 1.49 s, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.046), so nothing jumps under the reader's cursor.
  • The main thread was blocked for 360 ms, so taps and scrolling wait while scripts run.

Fix first: Third-party weight - Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.

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 www.tumblr.com
Mobile 390 × 844 · 211.4 KB · page is 6000 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 paint1.49 sgood is under 2.5 s
Cumulative layout shift0.046under 0.1 is stable
Total blocking time360 mslong tasks during load
First contentful paint412 msfirst content on screen
Browser page weight27.75 MB157 request(s), scripts included
Failed requests5blocked or unreachable
Largest contentful paint1.49 s
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.046
Goodgood under 0.1, poor over 0.25
Total blocking time360 ms
Needs improvementgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Fonts 3 requests
140.0 KB 46%
Css 2 requests
117.2 KB 39%
Images 3 requests
18.1 KB 6%
Javascript 1 request
4.9 KB 2%
Other 1 request
548 B 0%

Transfer size, compressed as sent. 11 request(s) in total, 302.7 KB across all of them.

Top issues

Third-party weight

medium impact

2 third-party host(s) serve 280.2 KB 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.

Avoid extra redirects

medium impact

1 redirect hop(s) before the page load started, each one a full round trip before the first byte.

Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Waterfall

Slowest requests

OTHERwww.tumblr.com/manifest.json
943 ms
CSSassets.tumblr.com/pop/css/main-dbd400ec.css
548 ms
FONTSassets.tumblr.com/pop/src/assets/fonts/favorit/favorit-m…
535 ms
FONTSassets.tumblr.com/pop/src/assets/fonts/favorit/favorit-r…
532 ms
IMAGESassets.tumblr.com/pop/manifest/favicon-0e3d244a.ico
528 ms
CSSassets.tumblr.com/pop/shared-styles-4236e14d.css
525 ms
FONTSassets.tumblr.com/pop/src/assets/fonts/favorit/favorit-8…
525 ms
IMAGESassets.tumblr.com/pop/manifest/apple-touch-icon-f8ea2554…
518 ms
JAVASCRIPTs0.wp.com/wp-content/js/bilmur.min.js
506 ms
IMAGESassets.tumblr.com/pop/manifest/favicon-cfddd25f.svg
506 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://www.tumblr.com/manifest.jsonother200943 ms548 B
https://assets.tumblr.com/pop/css/main-dbd400ec.css 3rd partycss200548 ms6.7 KB
https://assets.tumblr.com/pop/src/assets/fonts/favorit/favorit-medium-fbc7316f.woff2 3rd partyfonts200535 ms46.2 KB
https://assets.tumblr.com/pop/src/assets/fonts/favorit/favorit-regular-52013406.woff2 3rd partyfonts200532 ms48.4 KB
https://assets.tumblr.com/pop/manifest/favicon-0e3d244a.ico 3rd partyimages200528 ms14.7 KB
https://assets.tumblr.com/pop/shared-styles-4236e14d.css 3rd partycss200525 ms110.5 KB
https://assets.tumblr.com/pop/src/assets/fonts/favorit/favorit-85-cf2f6136.woff2 3rd partyfonts200525 ms45.3 KB
https://assets.tumblr.com/pop/manifest/apple-touch-icon-f8ea2554.png 3rd partyimages200518 ms3.1 KB
https://s0.wp.com/wp-content/js/bilmur.min.js?m=202643&f=3 3rd partyjavascript200506 ms4.9 KB
https://assets.tumblr.com/pop/manifest/favicon-cfddd25f.svg 3rd partyimages200506 ms339 B
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