Page Speed Checker

by t.mizuno27 · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

PageSpeed Insights analyzer showing Core Web Vitals and performance scores. Free, instant, no account needed.

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#157K

#131K among extensions

Version

1.0.3

updated 14 May 2026

Users

monthly, 7 months

Latest, 16 Oct 2026: 18 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Page Speed Checker

Page Speed Checker -- One-Click PageSpeed Insights & Core Web Vitals Check any page performance score and Core Web Vitals instantly. Uses Google PageSpeed Insights API to give you real performance data. FEATURES: - One-click performance analysis of the current page - Google PageSpeed Insights scores (Performance, Accessibility, Best Practices, SEO) - Core Web Vitals: LCP, FID/INP, CLS - Mobile and Desktop results - Clean, easy-to-read dashboard - No API key required -- uses Google free public API HOW IT WORKS: 1. Navigate to any webpage 2. Click the extension icon 3. View performance scores and Core Web Vitals instantly PRIVACY: The URL of the current page is sent to Google PageSpeed Insights API for analysis. No other data is collected or stored by the developer. Essential for web developers, SEO professionals, and site owners who need quick performance checks.