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PerfMaster

Free PageSpeed, SEO & security tools for any page. Lighthouse scores, meta tags, headers, broken links, structured data & more.

Users2Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

PerfMaster Media preview

6 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

222222026年6月10日2026年6月13日2026年6月15日Latest: 2
Rating trend

30-day rating change

Track rating movement over time to see whether quality signals remain stable.

Not enough rating snapshots yet. More data will appear as new snapshots are collected.
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat
00%
7-day growthFlat
00%
30-day growthDeclining
-6-75%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.0.0
ManifestV3
Size1.16MiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

Review the store description, core capabilities, and common use cases.

PerfMaster puts professional-grade web performance, SEO, and security analysis tools right in your browser sidebar — no account required.

Whether you're a developer debugging Core Web Vitals, an SEO specialist checking meta tags, or a site owner monitoring Lighthouse scores, PerfMaster gives you instant access to the data you need without leaving the page you're working on.

FREE FOR EVERYONE — 8 TOOLS, NO ACCOUNT REQUIRED

Run any of these tools on any page you visit. No sign-up, no credit card, no limits beyond fair-use rate limiting:

PageSpeed Insights Audit

Run a full Google PageSpeed Insights audit directly from the sidebar. Get Lighthouse scores for Performance, Accessibility, Best Practices, and SEO, plus real-world Core Web Vitals data from the Chrome UX Report (CrUX). See exactly where your page stands and what needs fixing — without opening a separate tab or navigating to pagespeed.web.dev.

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

5★
0
4★
0
3★
0
2★
0
1★
0
Related products

Similar and related extensions

Review related products from the Chrome Web Store detail page.