New: SEO & AEO scanning — see how Google ranks you and how ChatGPT, Claude & Perplexity cite youSee how it works
Lab diagnostics plus real-user Core Web Vitals from CrUX and RUM — with daily regression alerts before rankings drop.
Overview
Performance lives in three datasets: lab probes that explain causes, Chrome UX Report (CrUX) field data that Google ranks you on, and your own real-user monitoring. This scanner fuses all three — lab and field side by side per vital, with the divergence diagnosed — and watches daily for regressions against your baseline so a slow deploy becomes an email, not a traffic drop three weeks later.
What this scanner does
Runs lab checks on delivery and transport (TTFB, compression, HTTP/2/3, redirect chains, cache headers), page weight, render-blocking resources, image formats and dimensions, lazy loading, and font-display. Pulls 28-day p75 field data (LCP, INP, CLS, FCP, TTFB) from CrUX, phone-first, plus 40 weeks of history for trends. Ingests real-user vitals via a one-tag RUM snippet. A daily regression watch compares current field data against your 7-day baseline and alerts when a vital regresses materially or crosses Google’s thresholds.
Why it matters
Core Web Vitals are a ranking signal measured on real users — your fast laptop tells you nothing. Lab-only scores miss real-device slowness; field-only numbers lag 28 days and hide causes. Performance also decays silently: a marketing script or heavy hero image ships invisibly in review and shows up as lost rankings a month later. Fused data plus a regression watch turns that into a same-day fix.
Common findings
Get a full security report with AI-powered fix suggestions in 30 seconds. No setup required.
Related checks
Monitoring & Intel
External uptime checks every 60 seconds with incident tracking, down/recovery alerts, and a public status page.
SEO & AEO Visibility
Grade your search visibility with 68 checks — indexability, metadata, structured data, content, links, and Core Web Vitals.
Accessibility (WCAG)
WCAG 2.x Level AA signals across structure, forms, navigation, and media — the EAA-relevant checks, automated.
