SpeedVitals

Perform Web Vitals Test & TTFB Test on Multiple Locations & Devices. SpeedVitals Extension helps measure the performance of a website directly from that website itself.

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SpeedVitals is a powerful free Chrome extension designed to measure and analyze your website's performance directly on the site. It utilizes Lighthouse for lab data and Chrome's User Experience API (CrUX) for real user field data, offering comprehensive Web Vitals metrics such as FCP, LCP, CLS, TTI, and Speed Index alongside TTFB and page size.

With SpeedVitals, you can run performance tests from over 35 global locations and across more than 30 devices, ensuring accurate multi-location and multi-device assessments. It also features visual tools including resource distribution graphs, waterfall charts, a layout shift visualizer for diagnosing CLS issues, and code coverage analysis to identify unused CSS and JavaScript resources. Additionally, SpeedVitals Pro Tips provides expert optimization advice tailored to various platforms like WordPress, helping you boost your site's speed and user experience effectively.

Developer Tools Productivity Web3

By:

Daily users:

Rating:

Version:

2.4.1 Last updated: 2023-06-28

Version code:

5582076

Creation date:

2021-10-15

Risk:

Permissions:

activeTab
storage
cookies
https://*.speedvitals.com/
https://*.speedvitals-dev.com/

Size:

47.36K

Email:

co*****@speedvitals.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

Other rankings

#50 in spend keyword 24 ▲ 1

#54 in speed keyword 64

#57 in performance keyword 15 ▼ 2

#72 in speech keyword 77

#116 in testing keyword 31

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Other platforms

SpeedVitals (v2.4.1)

1,000+ 5.00

(9)

User reviews

by 天灭中共退党团队保平安, 2025-03-31

by 远离中共邪教快退出党团队, 2025-03-01

by Firefox user 18257019, 2024-01-25

View all user reviews ›

Extension safety

Risk impact

SpeedVitals requires very minimum permissions.

Risk impact analysis details

Low Request access to the following domains: {{requestedDomains}}

Risk likelihood

SpeedVitals is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** *** **** *******
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****

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