PageSpeed Exporter vs Lighthouse CI: On-Demand vs Automated Audits
Lighthouse CI is an automated testing tool for CI/CD pipelines. PageSpeed Exporter is an on-demand Lighthouse JSON exporter for AI agent workflows. They serve entirely different jobs — here is how they compare.
PageSpeed Exporter
PageSpeed Exporter is a web application for on-demand Lighthouse audits. There is no setup, no CI/CD integration, and no infrastructure to maintain. You enter a URL, get the full Lighthouse JSON, and drop it into your AI agent with a built-in prompt. It is optimised for the "I need to fix this now" workflow rather than automated regression prevention.
Lighthouse CI
Lighthouse CI (LHCI) is an open-source tool from Google that runs Lighthouse audits automatically in CI/CD pipelines (GitHub Actions, CircleCI, Jenkins). It flags performance regressions before they ship to production and can store historical results on a self-hosted or cloud server. It is a developer-infrastructure tool, not a consumer product.
Feature Comparison
| Feature | PageSpeed Exporter | Lighthouse CI |
|---|---|---|
| On-demand browser audit | Yes — instant | No — requires CLI/CI setup |
| AI-ready JSON export | Yes — structured AIReport | Raw JSON only, no AI formatting |
| AI prompt templates | Yes — 4 built-in templates | No |
| Setup required | None — web app | npm install, config file, server |
| CrUX field data | Yes — included in export | No (Lighthouse only, no PSI CrUX overlay) |
| MCP server for AI agents | Yes | No |
| Maintenance | None — managed SaaS | Self-hosted server requires maintenance |
| CI/CD integration | No | Yes — native GitHub Actions support |
| Performance regression alerting | No | Yes — fails builds on threshold breaches |
| Historical tracking | Cloud history (Starter/Pro) | Yes — LHCI server or Temporary Public Storage |
| Cost | Free tier available, from $9/month | Free (open source) |
When to use PageSpeed Exporter
- ✓You want to audit a live URL right now without installing anything
- ✓You want the complete JSON structured for an AI agent, with prompt templates included
- ✓You are actively optimizing a site and need iterative on-demand audits
- ✓You want CrUX real-user field data alongside Lighthouse lab data in your export
When to use Lighthouse CI
- ✓You need automated regression testing in your CI/CD pipeline before merging PRs
- ✓You want builds to fail automatically when performance scores drop below a threshold
- ✓You are managing a large team and want consistent performance gates on every commit
- ✓You want a completely free and open-source solution you control entirely
The Bottom Line
Lighthouse CI and PageSpeed Exporter are complementary. Lighthouse CI prevents regressions by catching them before they ship. PageSpeed Exporter helps you diagnose and fix performance issues with AI once you know they exist. Many development teams use both: LHCI catches the regression in the PR, and PageSpeed Exporter helps the developer use Claude or ChatGPT to figure out exactly what caused it.
Try PageSpeed Exporter — free
No account required. Run your first Lighthouse audit and export the complete JSON in under 30 seconds.
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Loading...Frequently Asked Questions
Is Lighthouse CI free?
Yes, Lighthouse CI is open-source and free. You self-host the LHCI server or use Temporary Public Storage. PageSpeed Exporter is a managed SaaS with a free tier of 5 reports/month.
Can Lighthouse CI export AI-ready JSON?
Lighthouse CI outputs the raw Lighthouse JSON format, which can be 500KB-2MB and includes binary screenshot data. PageSpeed Exporter structures the data into a compact AIReport under 50KB with AI prompt templates, specifically designed for LLM consumption.
Can I use Lighthouse CI and PageSpeed Exporter together?
Yes. Use Lighthouse CI for automated regression prevention in your pipeline, and PageSpeed Exporter for on-demand audits when you need to work with an AI agent to diagnose and fix specific issues.