What PageSpeed Insights does
Google's PageSpeed Insights API runs Lighthouse against any URL and returns lab + field (CrUX) performance metrics. Rivalist runs PSI for every audited page.
Integration · Performance
Rivalist + PageSpeed Insights
Core Web Vitals (LCP, INP, CLS, TTFB) measured against Google's CrUX field data.
Why it matters for your audit
Core Web Vitals are a confirmed Google ranking factor. Field data (CrUX) — not lab scores — is what Google uses. Rivalist surfaces both.
Integration depth
How Rivalist uses PageSpeed Insights
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Page-by-page LCP, INP, CLS, TTFB, FCP grades.
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Field data from CrUX where available (28-day P75).
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Lab data from Lighthouse as fallback when CrUX data is missing.
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Specific fixes ranked by impact and effort.
In your report
What you actually see
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Per-page Core Web Vitals pass/fail per metric.
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Render-blocking resources, image optimization opportunities, third-party impact.
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Specific fix list with code-level instructions.
BYOK note
PageSpeed Insights API is free with a Google Cloud project. BYOK: provide your own API key. Hosted: we provide a shared key.
FAQ
Common questions
Why field data over lab data?
Google ranks pages using real-user (field) data, not synthetic (lab) tests. Lab tests miss real conditions like cold-start CDN cache, slow 4G, and JS execution variance.
What if my site has no CrUX data?
CrUX requires sufficient real-user traffic. Newer/smaller sites get lab data only. As traffic grows, CrUX data unlocks automatically.
Can I audit specific page types?
Yes — Rivalist runs PSI on a sample of page types from your sitemap: homepage, top product/category, top article. Full per-page sweep available on enterprise plans.
Other integrations