Free website scanners
6 scanners that cost nothing to run. 2 need no account at all — anonymous visitors get 10 scans per day per IP. The rest are free once you sign up, which also includes 20 credits for the AI-model audits.
No account needed
Rule-based
Deterministic engine — fetches your site, parses HTML / JSON-LD / robots, generates the structured report. Free.
Run it freeSlop Score
Sweeps up to 50 pages and scores how careless your site looks — placeholder copy, near-duplicate pages, leaked template variables, missing first-party evidence, stale dates, design drift — with a per-page fix list. Reports observable defects, not "was this AI-written". Free.
Run it freeFree with an account
Still zero credits to run — signing in is what makes them available.
specification.website
Runs your URL against the specification.website checklist — 114 checks across Foundations, SEO, Security, Accessibility, Agent Readiness, Performance, Privacy, Resilience, and Internationalisation. Free.
Sign up freeDNS Analyzer
Resolves your domain's full DNS footprint — A/AAAA, MX, NS, SOA, CAA plus email auth (SPF, DKIM, DMARC, MTA-STS, BIMI) — then has AI flag missing, weak, or harmful records and hand you paste-ready fixes. Free.
Sign up freeLink checker
Recursively crawls your root domain (powered by linkinator) and reports every broken link — 404s, dead redirects, unreachable hosts — with the page each was found on. Free.
Sign up freeVu1nz web scanner
Partner website scanner from Vu1nz — runs the web check API for security and vulnerability signals. Free.
Sign up freeLooking for the AI-model audits? See pricing.