About PageSpeed Exporter

PageSpeed Exporter is a web performance tool that runs Google PageSpeed Insights (Lighthouse) audits on any public URL and exports the complete structured JSON — formatted specifically for AI coding agents like ChatGPT, Claude, Cursor, Copilot, and Windsurf.

What PageSpeed Exporter does

The Google PageSpeed Insights web UI (pagespeed.web.dev) shows a visual dashboard with coloured gauges. It is useful for a quick check, but it has no export button — you cannot take the data anywhere.

PageSpeed Exporter calls the same Google PSI API v5, takes the raw Lighthouse response (which can be 500KB–2MB of JSON including screenshots and binary data), and structures it into a compact AIReport under 50KB that retains every actionable finding: performance scores, Core Web Vitals metrics, CrUX real-user field data, stack-specific hints, and a prioritized list of opportunities and diagnostics with estimated time and byte savings.

The result is a file you can drop directly into ChatGPT, Claude, Cursor, or any AI agent and ask for exact, code-level fixes — not generic performance advice.

Why it was built

AI coding agents are transforming how developers fix bugs and improve code. But to fix a performance problem, an agent needs structured data about what is failing — not a screenshot of a dashboard.

Every existing Lighthouse tool was designed for humans reading visual reports. None of them were designed to produce the structured, token-efficient JSON that large language models need to write specific fixes.

PageSpeed Exporter was built to fill that gap: a single tool that runs the authoritative Google Lighthouse engine and outputs the result in the format AI agents actually expect.

What the reports measure

Largest Contentful Paint (LCP)

How quickly the largest visible element (usually a hero image or headline) loads. Target: ≤ 2.5 seconds. This is the most important Core Web Vital for search rankings.

Cumulative Layout Shift (CLS)

How much visible content shifts unexpectedly during load. Target: ≤ 0.1. High CLS happens when images lack explicit dimensions or fonts cause text reflow.

Interaction to Next Paint (INP)

How quickly the page responds to user interactions. Target: ≤ 200ms. This replaced First Input Delay (FID) as the responsiveness Core Web Vital in 2024.

Total Blocking Time (TBT)

How long the main thread is blocked by JavaScript and unable to respond to user input. Target: ≤ 200ms. TBT is the Lighthouse metric most correlated with INP.

First Contentful Paint (FCP)

How quickly the browser renders any content. Target: ≤ 1.8 seconds. Slow TTFB or render-blocking resources are the most common causes.

Who uses PageSpeed Exporter

›Developers who use ChatGPT, Claude, Cursor, Copilot, or Windsurf and want to feed live performance data directly into their AI workflow
›Frontend engineers diagnosing Core Web Vitals failures on React, Next.js, Vue, Angular, or Gatsby applications
›WordPress, Shopify, and Webflow site owners who want AI-readable audit data to share with a developer
›Digital agencies running Lighthouse audits across multiple client sites and needing batch exports
›SEO professionals who need structured performance data for automated analysis workflows
›AI agents and automation pipelines that call the REST API or MCP server to include performance data in larger workflows

Technical foundation

PageSpeed Exporter is built on the Google PageSpeed Insights API v5 — the same infrastructure that powers Google's official Lighthouse tool and is used by Google Search Console to assess Core Web Vitals for search ranking. Every audit runs live against Google's infrastructure with no caching.

The tool exposes a native MCP server (Model Context Protocol) at https://speedexporter.com/api/mcp so Claude Desktop and any MCP-compatible AI agent can run live Lighthouse audits without leaving the AI interface.

A full OpenAPI 3.0 specification is published at speedexporter.com/openapi.json — enabling LangChain, AutoGen, CrewAI, and other agent frameworks to auto-discover and call the API.

Try it now — no account required

Run a free Lighthouse audit on any URL and get the full AI-ready JSON report in under 30 seconds.

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