Pay per scan
Rule-based scans are free up to the daily limit. AI-model scans cost 20 credits (~$1) each. Buy credits with crypto via CoinPay; no subscription, no expiry.
Rule-based
Deterministic engine — fetches your site, parses HTML / JSON-LD / robots, generates the structured report. Free.
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.
DNS 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.
Link 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.
Vu1nz web scanner
Partner website scanner from Vu1nz — runs the web check API for security and vulnerability signals. Free.
Claude Sonnet 4.6
Anthropic's fast tier with web_fetch + web_search. Snappy AEO audit framed the way ClaudeBot would discover your site.
OpenAI GPT-5 Mini
OpenAI's fast tier with live web search. Snappy second opinion framed the way an OpenAI-tier answer engine would.
Qwen Max
Alibaba's flagship model via DashScope. Cost-efficient second opinion on Chinese / cross-language sites.
Kimi v2.6
Moonshot AI's flagship via OpenAI-compatible API. Strong long-context reasoning over your full homepage.
Gemini 2.5 Pro
Google's flagship with live Search grounding. Frames your site the way Google AI Overviews would.
DeepSeek V3
Cost-efficient open-weight model. Strong reasoning, OpenAI-compatible API — quick, lightweight second opinion.
Perplexity Sonar Pro
Web-grounded with live citations. Frames your site the way Perplexity's answer engine would surface it to users.
Sakana Fugu
Sakana AI's orchestration model — routes each request across a swappable pool of frontier LLMs for a frontier-level, vendor-neutral second opinion.
Sign-ups include 20 free credits (1 AI-model scan). Anonymous visitors get 10 free rule-based scans per day per IP.