bitwarden.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 13:41 UTC. Grade B (84/100), with the screenshots, the timings and the fixes that matter.

https://bitwarden.com/

20 October 2026 at 13:41 UTC · Free test · report pt_91b64b1206b6
Grade
B
84/100
Performance87/100
Structure80/100

13 audit(s) passed, 3 need work

First byte (TTFB)355 msmeasured from this server
Fully loaded1.54 sfirst byte + slowest asset
Requests26document + assets
Page weight1.92 MBcompressed transfer
HTML document73.4 KBbr
ProtocolHTTP/3server not sent

Where the first byte went

  • DNS lookup 89 ms 25%
  • TCP connect 73 ms 21%
  • Server wait 193 ms 54%

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 64% of 4,999 pages tested here355 ms against a median of 449 ms
Page weightheavier than 80% of 4,999 pages tested here1.92 MB against a median of 650.3 KB
Fully loadedfaster than 68% of 4,999 pages tested here1.54 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 first byte arrived in 355 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 1.92 MB over 26 request(s). Images files are 96% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives br-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • The largest element painted at 508 ms, inside the 2.5 s Google calls good.
  • The main thread was blocked for 559 ms, so taps and scrolling wait while scripts run.

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.

Mobile screenshot of bitwarden.com
Mobile 390 × 844 · 95.0 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 paint508 msgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking time559 mslong tasks during load
First contentful paint424 msfirst content on screen
Browser page weight3.87 MB158 request(s), scripts included
Failed requests3blocked or unreachable
Largest contentful paint508 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking time559 ms
Needs improvementgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
1.85 MB 96%

Transfer size, compressed as sent. 26 request(s) in total, 1.92 MB across all of them.

Top issues

Image delivery and format

high impact

3 image(s) over 200 KB and 9 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

3 render-blocking resource(s) in the document head (1 script(s), 2 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 1.92 MB across 26 request(s), with the document itself at 73.4 KB.

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

Waterfall

Slowest requests

IMAGESbitwarden.com/assets/3WyxzjR9LxPQupg8BA35BU/1dcba6b3…
1.18 s
IMAGESbitwarden.com/assets/TsxtlqgeHn16E5jGCNvd8/38db557fb…
1.16 s
IMAGESbitwarden.com/assets/7FSDx4uTXgzeFapfEq1RWw/f91927c5…
1.15 s
IMAGESbitwarden.com/assets/20CZAAq0Cpb1F30hSozIyl/5ef24e7b…
1.15 s
IMAGESbitwarden.com/assets/oNx0pRbjiuRiNkpEqMPMr/63d4bd510…
1.14 s
IMAGESbitwarden.com/assets/6wAtJfOPydtEWbM6GUiFGJ/b8a005a0…
1.14 s
IMAGESbitwarden.com/assets/5ZWJwiUk2psRkkFBqtfnkT/668f9336…
1.13 s
IMAGESbitwarden.com/assets/59Qkg0XZEhABC6p2sLdm3t/a45dd3b2…
1.13 s
IMAGESbitwarden.com/assets/5OnIByeAi83RV7JAWs8mfL/d44da698…
1.13 s
IMAGESbitwarden.com/assets/6ysjaWjjeC3wBKCLlEzzvd/ef2eb9d8…
1.13 s

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://bitwarden.com/assets/3WyxzjR9LxPQupg8BA35BU/1dcba6b3fb550687ae8be8a997c72c79/HomepageHero.png?w=1400&fm=jpgimages2001.18 s139.6 KB
https://bitwarden.com/assets/TsxtlqgeHn16E5jGCNvd8/38db557fb9def08f97bd7cc66595f165/home-built-diff-flexible-deployment.png?w=849&fm=jpgimages2001.16 s124.7 KB
https://bitwarden.com/assets/7FSDx4uTXgzeFapfEq1RWw/f91927c5c6b77491bad446f75953b511/Frame_1000004577-padded-extra-height.png?w=1400&fm=jpgimages2001.15 s153.0 KB
https://bitwarden.com/assets/20CZAAq0Cpb1F30hSozIyl/5ef24e7b6213ddd3b62e2f00f3b3463f/homepage-share-at-scale.png?w=1348&fm=jpgimages2001.15 s210.7 KB
https://bitwarden.com/assets/oNx0pRbjiuRiNkpEqMPMr/63d4bd510d05632a970202b08cde0e36/homepage-unique-creds.png?w=1348&fm=jpgimages2001.14 s142.5 KB
https://bitwarden.com/assets/6wAtJfOPydtEWbM6GUiFGJ/b8a005a025f238c34735b4f68fc8133d/Frame_1000004801.png?w=508&fm=jpgimages2001.14 s77.5 KB
https://bitwarden.com/assets/5ZWJwiUk2psRkkFBqtfnkT/668f93364da6b55e5b2a8f40f2596a9e/Frame_1000004577-padded_2_.png?w=1400&fm=jpgimages2001.13 s201.0 KB
https://bitwarden.com/assets/59Qkg0XZEhABC6p2sLdm3t/a45dd3b2754eb3484d63664683cf36e8/Mitsubishi_10.png?w=772&fm=jpgimages2001.13 s5.0 KB
https://bitwarden.com/assets/5OnIByeAi83RV7JAWs8mfL/d44da698b8415d600f71d5467427770b/Airbus_10.png?w=801&fm=jpgimages2001.13 s6.0 KB
https://bitwarden.com/assets/6ysjaWjjeC3wBKCLlEzzvd/ef2eb9d8aa5854d3a064a866b3b3b40a/SAP_10.png?w=801&fm=jpgimages2001.13 s6.9 KB
https://bitwarden.com/assets/2LMgIiCdjdxf490CkKWuQd/cb62b070502f188a5f6ae7c9775dc2dc/Sephora_10.png?w=801&fm=jpgimages2001.12 s4.9 KB
https://bitwarden.com/assets/3iHKn5mX3QIGCpFiisQDHA/79957b5fdef4f472335056d48e53fb6e/homepage-autofill.png?w=1350&fm=jpgimages2001.12 s135.2 KB
https://bitwarden.com/assets/23YnjNaJ6dLKHFosPlWPu8/565448ffdfed1ed4ce4c5538d92428c0/Group_1000004550.png?w=395&fm=jpgimages2001.12 s15.9 KB
https://bitwarden.com/assets/2R0lYWMBiUy35YCNA6zN3N/fb9741b9ef2824b550b14af4b6cd01ee/Glovo_W.png?w=544&fm=jpgimages2001.12 s535 B
https://bitwarden.com/assets/dw3E0zHPnWj9bNscezKHz/78580ae2846949dea5d9f1a6bbbdc027/Viasat_10.png?w=801&fm=jpgimages2001.11 s6.5 KB
https://bitwarden.com/assets/5VPyKpJ1AnbXUDq9F3HgkD/c38469469dce7f511826eedaaeed2f0a/Group_1000004551.png?w=396&fm=jpgimages2001.11 s14.3 KB
https://bitwarden.com/assets/3Do2McUtzdAMgj9hpxxgGW/9d98db9a918bbc2ee4fb7a519a81173c/Group_1000004550.png?w=338&fm=jpgimages2001.11 s24.6 KB
https://bitwarden.com/assets/5kT7QjgXAYfa9gHZPAaMlR/a7d9d2122943fee5c0e0a2818c0d6109/RedHat_10.png?w=801&fm=jpgimages2001.11 s9.7 KB
https://bitwarden.com/assets/3IpHPSsanaJWDbxW6pXqK7/c13ce36367c717942de4c3d386fb4d53/NBCUniversal_10.png?w=801&fm=jpgimages2001.10 s5.9 KB
https://bitwarden.com/assets/3XrWztlap4obDAw4mGWCSh/d188df4452b1f037a84d655980803a04/namecheap-white.png?w=1200&fm=jpgimages2001.10 s2.9 KB
https://bitwarden.com/assets/dJ1jXiY0C9PwTz83pSKrz/e01fd4d5b267e1ddfb71187b611dce7b/Ocrolus_W.png?w=591&fm=jpgimages2001.10 s1.2 KB
https://bitwarden.com/assets/47lUYlIeTfg2Us099qECTl/6abcf466a4893062985eeb1789668224/rentokil_initial-logo-white.png?w=600&fm=jpgimages2001.10 s948 B
https://bitwarden.com/assets/6dwcGXK7HcBfutWDhzk3XI/4bd640ba267c74f2692a51aaebbb745d/home-built-diff-enterprise-grade.png?w=1284&fm=jpgimages2001.10 s365.6 KB
https://bitwarden.com/assets/zZHHBNSsCohUFcjpY3ALb/07a2c9bdbaeea9150aa75da5a173bce3/home-built-diff-open-source.png?w=849&fm=jpgimages2001.09 s160.7 KB
https://bitwarden.com/assets/10euLPrYZ5A1IP8CGLSQ9s/3b8eabf8b36879ece498afaf5a01fed7/Frame_1000004799.png?w=510&fm=jpgimages2001.09 s80.4 KB
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