# sitespeed.io Comprehensive Web Performance Analysis Toolkit

> sitespeed.io is an open-source tool for comprehensive web performance analysis. It tests websites using real browsers, provides speed optimization feedback, and tracks performance over time with support for CI/CD integration and production monitoring.

- Skill: `agentskillexchange/sitespeed-io-comprehensive-web-performance-analysis-toolkit` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/sitespeed-io-comprehensive-web-performance-analysis-toolkit`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/sitespeed-io-comprehensive-web-performance-analysis-toolkit/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/sitespeed-io-comprehensive-web-performance-analysis-toolkit

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# sitespeed.io Comprehensive Web Performance Analysis Toolkit

sitespeed.io is an open-source tool for comprehensive web performance analysis. It tests websites using real browsers, provides speed optimization feedback, and tracks performance over time with support for CI/CD integration and production monitoring.

## Installation

Use the upstream install or setup path that matches your environment:
- docker run --rm -v "$(pwd)":/sitespeed.io sitespeedio/sitespeed.io https://www.sitespeed.io/
- npm i -g sitespeed.io

Requirements and caveats from upstream:
- [![Docker](https://github.com/sitespeedio/sitespeed.io/actions/workflows/docker.yml/badge.svg)](https://github.com/sitespeedio/sitespeed.io/actions/workflows/docker.yml)
- [![Docker security scan](https://github.com/sitespeedio/sitespeed.io/actions/workflows/docker-scan.yml/badge.svg)](https://github.com/sitespeedio/sitespeed.io/actions/workflows/docker-scan.yml)
- [![Docker][docker-image]][docker-url]

Basic usage or getting-started notes:
- [Usage](#usage)
- [Basic usage](#basic-usage)
- sitespeed.io is an Open Source web performance tool. Run it once to debug a slow page and you get an HTML report with Core Web Vitals, a video of the page loading, the HAR waterfall and the Coach's advice on how to fi...

- Source: https://github.com/sitespeedio/sitespeed.io
- Extracted from upstream docs: https://raw.githubusercontent.com/sitespeedio/sitespeed.io/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/sitespeed-io-web-performance-analysis/)