Every free SEO checker claims to tell you what's wrong with your site. Here's what each one actually gives away for free, and what it holds back.
"Free SEO audit" is one of the most oversold phrases in this space — most tools use it to describe a teaser: a partial score with the useful detail locked behind a trial signup. A few genuinely give you something actionable at zero cost. Here's an honest rundown of the well-known options and where each one actually stands.
Free tier includes a full score across 10 commercial dimensions (SEO, conversion, trust, mobile, and more) plus your top 5 most urgent fixes with the specific evidence behind each — no signup required for the first report, no credit card. Reads the page with an AI model rather than a fixed checklist, so it catches context-dependent issues. Full findings across every dimension, plus a 6-month roadmap, sit behind a one-time €49 Pro report — no subscription.
Instant review gives a broad checklist-style score covering on-page SEO, usability, and social signals. Deeper competitive analysis and keyword tracking require a paid plan starting around $79/month. Good for a fast surface-level read, thin on explaining why something matters.
No-signup instant grade covering on-page SEO, links, usability, performance, and social. White-label reporting is the standout feature, aimed squarely at agencies reselling audits to clients rather than a business auditing its own site. Paid plans start around $19/month.
Broader platform with genuinely useful free-tier technical and mobile usability checks, plus rank tracking. Backlink data and automated check-ups are the paid differentiators. More of an ongoing SEO platform than a one-off free audit.
One of the longest-running free graders — instant score across performance, SEO, mobile, and security. Broad rather than deep: useful as a first-pass sanity check, light on specific, prioritised next steps.
Rules-based checkers are consistent and fast, which makes them fine for a quick sanity check. Where they fall short is judgement — they can confirm a meta description exists but can't tell you if it's actually persuasive, and they can't weigh which of ten flagged issues is actually costing you the most. That's the gap an AI-read audit is built to close: not replacing the technical checklist, but adding the judgement a checklist structurally can't provide.
See the AI-read version for your own site — free, no signup.
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