Honest Comparison
PageSpeed Insights is a great free tool for quick checks. Ahoj Metrics picks up where it leaves off: multiple regions, historical tracking, automated monitoring.
Google PageSpeed Insights (PSI) is free, fast, and useful for quick performance checks. Enter a URL, get a Lighthouse score and CrUX real-user data. Everyone should use it.
But PSI has limitations. It tests from a single location (typically US). It doesn't save history. It doesn't monitor automatically. And you can't compare how your site performs across different regions.
Ahoj Metrics is essentially "PageSpeed Insights on autopilot with global coverage." Same Lighthouse engine, but it tests from up to 18 regions simultaneously, stores your results over time, runs scheduled tests, and alerts you when performance drops.
Think of PSI as a thermometer and Ahoj Metrics as a continuous health monitor.
| Feature | Ahoj Metrics | PageSpeed Insights |
|---|---|---|
| Testing Engine | Google Lighthouse | Google Lighthouse |
| Price | Free tier + paid plans | Completely free |
| Test Locations | 18 regions (simultaneous) | 1 (typically US-based) |
| Real User Data (CrUX) | Yes (field data lookup) | Yes (shown inline with results) |
| Historical Data | Yes (30 days - unlimited) | No (single snapshot) |
| Automated Monitoring | Yes (Hourly/Daily/Weekly) | No (manual only) |
| Multi-Region Comparison | Yes | No |
| Alert Notifications | No | |
| Team Collaboration | Yes (Studio plan+) | No |
| API Access | Coming soon | Yes (free, rate-limited) |
| Performance Score | Yes | Yes |
| Core Web Vitals (Lab) | Yes (LCP, CLS, FCP, TBT) | Yes (LCP, CLS, FCP, TBT) |
| Core Web Vitals (Field) | Yes (CrUX field data lookup) | Yes (28-day CrUX data, inline) |
| Accessibility Audit | Yes | Yes |
| SEO Audit | Yes | Yes |
| Best Practices Audit | Yes | Yes |
| Treemap Visualization | No | Yes |
| Mobile + Desktop Testing | Yes | Yes |
| Batch Testing (multiple URLs) | Yes | No (one URL at a time) |
| Requires Login | Yes (free account) | No |
We believe in being honest. Here's where PageSpeed Insights has the edge:
No account needed. No quota. Test as many URLs as you want, as often as you want. You can't beat free and unlimited.
PSI displays Chrome User Experience Report data directly alongside the Lighthouse score on the same page — no extra step. In Ahoj Metrics, field data is a dedicated lookup rather than an automatic overlay.
Go to pagespeed.web.dev, paste a URL, get results. Zero friction. Ahoj Metrics requires a free account.
PSI includes a JavaScript treemap showing which scripts take up the most bytes. Useful for identifying bloated dependencies.
PSI is the official Google tool. If you're trying to understand what Google sees when it evaluates your site, PSI is the most authoritative source, especially with CrUX data included.
The PageSpeed Insights API is free (with rate limits). You can integrate it into CI/CD pipelines or build custom dashboards at no cost.
Here's what Ahoj Metrics does differently:
PSI tests from one location. Your site might score 95 from Google's US servers and 55 from Asia. You won't know that from PSI. Ahoj Metrics tests from 18 regions simultaneously and shows you the differences side by side.
PSI shows a single snapshot. Refresh the page and the previous result is gone. Ahoj Metrics stores every audit result, letting you track performance trends over weeks and months. Did that last deployment help or hurt? Check the graph.
Nobody opens PageSpeed Insights every morning to manually test their site. Ahoj Metrics runs scheduled audits hourly, daily, or weekly and alerts you when performance drops below your threshold. It's the difference between checking your blood pressure once and wearing a continuous monitor.
When your Lighthouse score drops from 90 to 60 after a deployment, Ahoj Metrics emails you. PSI has no alerting at all.
Test multiple URLs in one session. Monitor your homepage, your product pages, and your checkout flow. PSI only tests one URL at a time.
Share results with your team. Track multiple sites in one dashboard. Assign monitors to different projects. PSI is a single-player tool.
Ahoj Metrics now includes CrUX field data lookup — the same Google Chrome User Experience Report dataset PSI uses. Look up any domain and see the 28-day p75 values and Good/Needs Improvement/Poor distributions for LCP, INP, CLS, FCP, and TTFB, without leaving your monitoring dashboard.
| Ahoj Metrics | PageSpeed Insights | |
|---|---|---|
| Price | $0 | $0 |
| Tests | 20 audits/month | Unlimited |
| Regions | 5 per audit | 1 |
| Monitoring | No | No |
| History | 30 days | None |
| CrUX Data | Yes (field data lookup) | Yes (inline) |
| Account Required | Yes | No |
| Ahoj Metrics | PageSpeed Insights | |
|---|---|---|
| Tests | 100 audits/month | Unlimited |
| Regions | 5 per audit | 1 |
| Monitoring | 5 monitors (hourly/daily/weekly) | None |
| History | 90 days | None |
| Alerts | None |
PageSpeed Insights will always be free and unlimited for single-location tests. The question is whether you need what PSI doesn't offer: multi-region testing, historical tracking, automated monitoring, and alerts. If you do, that's what Ahoj Metrics adds.
See our full pricing page for details.
Use PSI for quick spot-checks and to see CrUX real-user data. Use Ahoj Metrics for continuous monitoring and global performance tracking. They use the same Lighthouse engine, so scores are directly comparable. PageSpeed Insights is a tool everyone should use. Ahoj Metrics is for when you need more than snapshots.
Same Lighthouse engine as PageSpeed Insights. Plus 18 regions, historical tracking, and automated monitoring. 20 audits per month. Free forever. No credit card.
Start FreeThink of it as PageSpeed Insights on autopilot.
Yes. Both use Google Lighthouse. The performance scores, Core Web Vitals metrics, and audit recommendations come from the same engine. A score of 85 on Ahoj Metrics means the same thing as 85 on PageSpeed Insights.
Lighthouse scores can vary between runs due to network conditions, server response times, and the location of the test. PageSpeed Insights tests from Google's servers (typically US-based). Ahoj Metrics tests from different global regions. A different location can produce a different score, which is exactly why multi-region testing matters.
No. Keep using it. It's free, requires no account, and shows lab and CrUX field data together on one page with zero friction. Use PSI for quick spot-checks. Use Ahoj Metrics for ongoing monitoring, multi-region testing, and CrUX lookups inside your existing dashboard. They work well together.
Yes. The Field Data feature lets you look up CrUX data for any domain or URL — p75 values and Good/Needs Improvement/Poor distributions for all five Core Web Vitals (LCP, INP, CLS, FCP, TTFB). It's powered by the same Google CrUX API that PSI uses, with 12-hour server-side caching for instant repeat lookups.
No. It's a Google product and actively maintained. Google continues to update it with new Lighthouse versions and features.
PSI is great for manual, single-location checks. You're paying for automation (scheduled monitoring), multi-region testing (18 regions simultaneously), historical data (track trends over time), alerts (know when performance drops), and team features (shared dashboard). If you don't need those, PSI is perfectly fine.