Paste a URL. In a few seconds you'll see whether ChatGPT, Claude, Perplexity, Gemini and Copilot can reach and read it, what's blocking them, and what to fix first.
Scans the one page you enter, plus robots.txt, llms.txt and the sitemap on that site. Public pages only.
Honest limits: server tests send crawler user agents from our servers, so they can't reproduce IP-verified allow-lists. A "refused" result on a site that verifies bot IPs is expected, and real bots still get through.
Search and browsing bots (OAI-SearchBot, ChatGPT-User, PerplexityBot, Claude-SearchBot) fetch pages so assistants can cite them. Training crawlers (GPTBot, ClaudeBot, Google-Extended) collect content for model training. Blocking training crawlers doesn't remove you from AI answers; blocking search bots does.
We send real crawler user agent strings from our own servers. Sites that verify crawler IP addresses correctly refuse that. If only some bots are refused and you verify IPs on purpose, you're fine. If every bot is refused, look at your firewall or CDN bot settings.
Yes. Most AI crawlers read raw HTML only. If your text appears only after scripts run, they see an almost empty page.
No. It's an emerging convention with uneven adoption. It's cheap to add and we report it, but it's a small part of the score and not a proven ranking factor.
Scan results are not stored. To prevent abuse we keep a hashed requester address and the scanned hostname for rate limiting, deleted automatically after a day.