Core Web Vitals Test
#8,786 of 271,478 by installs on Chrome · #5,703 of 164,276 in productivity
First seen by this census 09/01/2026 — the store does not publish a creation date
Last updated 03/17/2025
Tracked since 09/01/2026
Compare with another extension
Category: productivity / developer
Languages: Deutsch, English, English (Australia), English (United Kingdom), English (United States), Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, español (Latinoamérica), français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), português (Portugal), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, العربية, فارسی, मराठी, हिन्दी, বাংলা, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, አማርኛ, 中文（中国）, 中文（台灣）, 日本語, 한국어
Description
Check Core Web Vitals and compare metrics for desktop and mobile devices. Check pagespeed insights using our Chrome extension.
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Growth
Change in installs. This store publishes the count rounded to one or two significant figures, so it does not move when the listing grows - it moves when the rounding rolls over. The figures below are therefore what was actually observed between the two crawls named in "measured over", not scaled to the window, and the percentage is of that same rounding step - so a small listing crossing a bucket shows a very large one. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | 0 | 0.0% | 0 | 1 days |
| week | 0 | 0.0% | 0 | 8.3 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/01/2026. History accumulates as changes are observed — check back soon.
Permissions
Access level: Extensive — Reaches every website you visit, and holds a powerful capability as well.
- Reads and changes your data on all websites
- Attach to your tabs' debugger, giving it deep access to page content and network traffic
Ad blockers, password managers and VPNs need this kind of access to do their job. This describes what the extension can reach, not how it behaves.
Manifest V3
Reads and changes your data on all websites ⚠
- activeTab — See the page you're currently viewing, only when you click the extension
- debugger ⚠ — Attach to your tabs' debugger, giving it deep access to page content and network traffic
- scripting — Run scripts on web pages you visit
- storage — Save its own settings and data locally
- tabs — See your open tabs and the pages you're on