Scanverra vs. Google PageSpeed Insights
Scanverra is a Lighthouse-based website audit with SEO, accessibility, security, and AI-written fixes bundled together. PageSpeed Insights is Google's own free tool that runs Lighthouse on your page and pairs it with real-user CrUX field data.
| Feature | Scanverra | Google PageSpeed Insights |
|---|---|---|
| Lowest paid price | $19/mo (Pro) | No paid plan - always free |
| Free tier & limits Website Audit is unlimited and free on Scanverra either way | Unlimited Website Audits; 4/mo each for Security, Browser & Repo scans | Fully free, unlimited use, no account or login |
| Lab performance data (Lighthouse) | Yes | Yes |
| Field data (real-user CrUX metrics) Scanverra reports lab scores only, not historical real-user CrUX data | No | Yes |
| Accessibility checks Scanverra additionally maps each issue to a specific WCAG 2.1/2.2 success criterion | Yes | Yes |
| Security header analysis | Yes | No |
| Repository/code scanning | Yes | No |
| Real-browser JS error & broken-link capture Separate Playwright-based crawl, not part of the audit score | Yes | No |
| AI-written, framework-aware fixes | Yes | No |
| Agent Readiness score llms.txt, JSON-LD, semantic landmarks, CLS stability, AI-crawler access | Yes | No |
| API access | Enterprise plan only | Free public API, 25,000 requests/day |
| Scheduled monitoring | Pro, Team & Enterprise plans | No |
Where PageSpeed Insights is the better choice
If all you want is a fast, free Lighthouse score backed directly by Google's own infrastructure, PageSpeed Insights is genuinely hard to beat - there's no account to create, no plan to pick, and no reason to route that specific check through a third party. It's also the only tool here that shows real-user field data from the Chrome User Experience Report alongside the lab score, which matters if you care how your page actually performs for visitors on real networks and devices, not just in a single simulated run.
Where Scanverra is the better choice
PageSpeed Insights stops at Performance, Accessibility, Best Practices, and SEO - it has no security header analysis, no repository scanning, and no way to write a fix in the context of your actual framework. Scanverra runs the same kind of Lighthouse pass and adds a fifth score most audits skip entirely - Agent Readiness, which checks llms.txt, structured data, and layout stability that matter as AI agents browse on people's behalf - plus AI-written fixes tailored to the CMS or framework it detects on your site.
Frequently asked questions
Does Scanverra use Google PageSpeed Insights data?
Yes, partly. Scanverra's own Lighthouse pass runs first, but if the local browser environment fails to return a score, Scanverra falls back to fetching results from the PageSpeed Insights API so a scan still completes. It's an internal reliability fallback, not the primary data source.
Why does PageSpeed Insights show a different score than Scanverra?
Both run Lighthouse, but scores can drift with Chrome version, server load, network conditions during the run, and which additional checks (SEO, accessibility, security, Agent Readiness) get folded into the overall picture. Treat either as a snapshot, not an exact number to chase.
Does PageSpeed Insights check security or accessibility beyond Lighthouse's built-in audits?
It reports Lighthouse's own Accessibility and Best Practices categories, which cover real, genuine checks (axe-core rules, deprecated APIs, and similar), but it does not analyze HTTP security headers, TLS/SSL configuration, or map issues to WCAG success criteria the way a dedicated security or accessibility audit does.
Can I get PageSpeed-Insights-style field data (CrUX) from Scanverra?
No - Scanverra reports fresh lab scores from each scan, not historical Chrome User Experience Report field data. If you specifically need 28-day real-user field metrics, PageSpeed Insights (or the CrUX API/BigQuery dataset directly) is the right tool for that.
Is PageSpeed Insights really free with no limits?
For the web tool at pagespeed.web.dev, yes - no account, no pricing tiers. The underlying API has a published free quota (25,000 requests/day) before you'd need your own Google API key for higher volume.
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See your Lighthouse score plus what PSI doesn't check
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