otter.ai speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 15:55 UTC. Grade B (87/100), with the screenshots, the timings and the fixes that matter.

https://otter.ai/

20 October 2026 at 15:55 UTC · Free test · report pt_8ef39b55c2ce
Grade
B
87/100
Performance92/100
Structure80/100

11 audit(s) passed, 5 need work

First byte (TTFB)490 msmeasured from this server
Fully loaded1.50 sfirst byte + slowest asset
Requests26document + assets
Page weight537.7 KBcompressed transfer
HTML document58.5 KBgzip
ProtocolHTTP/3server not sent
Third-party479.2 KBother hosts

Where the first byte went

  • DNS lookup 69 ms 14%
  • TCP connect 80 ms 16%
  • Server wait 341 ms 70%

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 54% of 4,999 pages tested here490 ms against a median of 448 ms
Page weightlighter than 56% of 4,999 pages tested here537.7 KB against a median of 650.5 KB
Fully loadedfaster than 70% of 4,999 pages tested here1.50 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 490 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 537.7 KB over 26 request(s). Images files are 89% 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.
  • 89% 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 792 ms, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.010), so nothing jumps under the reader's cursor.
  • The main thread was blocked for 79 ms in total, which is not enough to feel.

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 otter.ai
Mobile 390 × 844 · 49.3 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 paint792 msgood is under 2.5 s
Cumulative layout shift0.010under 0.1 is stable
Total blocking time79 mslong tasks during load
First contentful paint792 msfirst content on screen
Browser page weight38.52 MB138 request(s), scripts included
Failed requests10blocked or unreachable
Largest contentful paint792 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.010
Goodgood under 0.1, poor over 0.25
Total blocking time79 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
479.2 KB 89%

Transfer size, compressed as sent. 26 request(s) in total, 537.7 KB across all of them.

Top issues

Server response time (TTFB)

high impact

The first byte arrived after 490 ms. Of that, 341 ms was the server thinking and 149 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 impact

4 render-blocking resource(s) in the document head (0 script(s), 4 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.

Image delivery and format

medium impact

0 image(s) over 200 KB and 1 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.

Third-party weight

medium impact

1 third-party host(s) serve 479.2 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.

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

IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67d99de2b0e7e…
1.01 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67d9a0424159e…
1.01 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67dca82aabe0c…
1.01 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67d9a03c14cfc…
1.00 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67dca82a034f0…
1.00 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67d0367d5ad3f…
1.00 s
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67d99de19b4c5…
998 ms
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/6acf6d38b0681…
997 ms
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67dc3b85ee0d2…
993 ms
IMAGEScdn.prod.website-files.com/618e9316785b3582a5178502/67dc3a840a0a1…
992 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://cdn.prod.website-files.com/618e9316785b3582a5178502/67d99de2b0e7e01d72ef9448_e8f9b2494e9e5d6f76e7321093307c26_amazon.svg 3rd partyimages2001.01 s2.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d9a0424159ef00c676ac0a_savage.avif 3rd partyimages2001.01 s4.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dca82aabe0cec635bddb9c_d1546c95f9753392a2cdf36a3acf39c0_logo-harvard.svg 3rd partyimages2001.01 s18.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d9a03c14cfc46c38e67258_brown.avif 3rd partyimages2001.00 s4.3 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dca82a034f0ef337c54ab6_3d8dad0cb6a1ab1f23a584b5c42b5b73_logo-grant.svg 3rd partyimages2001.00 s2.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d0367d5ad3fbc59c5ecdf3_hot-gradient.avif 3rd partyimages2001.00 s807 B
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d99de19b4c59d9f6303cc3_ede70156a4e2accb6e682882db89a474_ibm.svg 3rd partyimages200998 ms1.1 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/6acf6d38b06811780ea497e8_0f775b41f735aed29c359c23439fa080_capture-conversation-asset.png 3rd partyimages200997 ms190.3 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dc3b85ee0d2ba08c8a7423_dropdown_img.avif 3rd partyimages200993 ms9.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dc3a840a0a1f98ac461772_dropdown_circle1.png 3rd partyimages200992 ms11.9 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dc3a840a0a1f98ac461778_dropdown_circle2.png 3rd partyimages200991 ms12.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dca82938168d0b153afd03_de62202c1b906b7d5ce2a18a933f8747_logo-mastercard.svg 3rd partyimages200990 ms1.9 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d99de28805b88e980eb99b_98c0461a636c3f0a646f8f93beea9a2e_walgreens.svg 3rd partyimages200988 ms2.3 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67e18e5721ebc3692a58387d_618e9316785b3582a5178502_67d99b7c978ce7b1089828f4_Otter%20-%20Landing%20Video%201x1-poster-00001-p-500.jpg 3rd partyimages200982 ms6.1 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67e18e5721ebc3692a58387d_618e9316785b3582a5178502_67d99b7c978ce7b1089828f4_Otter%20-%20Landing%20Video%201x1-poster-00001.jpg 3rd partyimages200981 ms10.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d99de2bf18741e52b4069c_ee69e6e1a688affaccba3aa02ede0b82_nbc_universal.svg 3rd partyimages200981 ms3.5 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/68b717cb5f2b668f081df225_sdr-agent-circle.png 3rd partyimages200979 ms6.8 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/6acf6d38648aba2bfbae10e6_pre-call-briefings-asset-p-500.avif 3rd partyimages200978 ms14.4 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dc3a840a0a1f98ac461774_dropdown_circle3.png 3rd partyimages200978 ms11.1 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dca82ab84159b65f4eaabc_b1c029dc3f18e239d38dc64900191ea0_logo-salesforce.svg 3rd partyimages200978 ms5.0 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67dc3a840a0a1f98ac461776_dropdown_circle4.png 3rd partyimages200975 ms12.6 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67d9a03d4b21ebdb8930e480_draper.avif 3rd partyimages200971 ms5.2 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/67db8d0b77f6c3eb435214cc_397f63dc4ab563ff369504b311566798_questions-when%402x.avif 3rd partyimages200955 ms73.5 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/6acf6d38648aba2bfbae10e6_pre-call-briefings-asset.avif 3rd partyimages200952 ms45.8 KB
https://cdn.prod.website-files.com/618e9316785b3582a5178502/6acf6d38b06811780ea497e8_0f775b41f735aed29c359c23439fa080_capture-conversation-asset-p-500.png 3rd partyimages200948 ms23.1 KB
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