# Website Performance Analyzer Tool

> Adds a DevTools panel that audits performance, accessibility, best practices, and SEO.

Canonical page: [https://chrome-stats.com/d/performance-analyzer-tool](https://chrome-stats.com/d/performance-analyzer-tool)

## Overview

- **ID:** `performance-analyzer-tool`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Hikasami
- **Category:** web-development
- **Daily users:** 6
- **Version:** 1.0.0
- **Last updated:** 2026-02-04
- **First published:** 2026-02-04
- **Size:** 54 KB
- **Data as of:** 2026-09-16
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/performance-analyzer-tool/)
- **Website:** [https://github.com/hksm-app/perf-analyzer](https://github.com/hksm-app/perf-analyzer)

## Description

Website Performance Analyzer Tool adds a dedicated DevTools panel that runs local audits for performance, accessibility, best practices, and SEO. It provides a clear score breakdown, key opportunities, and actionable recommendations without sending data to external servers. Use it during development to catch regressions and share reports via clipboard.

## Rankings

- #41,808 — Overall
- #14 — performance
- #64 — analyzer
- #89 — analyze
- #92 — opportunity
- #185 — website

## Permissions and access

### Permissions

- `clipboardWrite`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/performance-analyzer-tool)