Free SEO checker for any website
This free SEO checker grades any public URL against Google's own Lighthouse engine and returns the four category scores — Performance, Accessibility, Best Practices, and SEO — alongside the crawlability signals search engines look at before they rank a page. No signup, no install, no proprietary scoring black box. Paste a domain, get the same numbers Google sees.
It's built for the moment when you need a credible technical baseline fast: a sales call where you want to qualify a prospect's marketing maturity, an agency pitch where you want to highlight quick wins, a pre-acquisition diligence pass, or the morning after a deploy when traffic looks off and you need to rule out a regression in seconds.
How this differs from the deep SEO audit
Same engine, lighter framing. If you want the long-form walkthrough — what each signal means, when to use it, how to interpret the colour bands — open the full SEO audit tool. If you want WHOIS context for the domain, try the domain checker. For a pure security posture grade, the security scanner is the next stop.
What "good" looks like
Lighthouse marks scores in green (90+), yellow (50–89), and red (under 50). Most B2B leaders sit in the 60–85 band — straight 90s are rare and not required. Focus on shape: a single red category is usually the bottleneck, and fixing it lifts every downstream metric.