Websites
AI crawler rules, domains and SSL checks. 12 free tools, all running in your browser.
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All-in-one
AI crawlers
llms.txt generatorCreate an llms.txt file for your website with a live preview.robots.txt AI crawlersBuild robots.txt rules for GPTBot, ClaudeBot, Google-Extended, PerplexityBot and 20 more AI crawlers.Block GPTBotStop GPTBot from collecting your pages for model training with a two-line robots.txt rule.Block AI crawlersOne robots.txt block that stops GPTBot, ClaudeBot, CCBot, Bytespider, Google-Extended and the other major AI crawlers.robots.txt checkerPaste a robots.txt and see, for any page, whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended and other crawlers are allowed or blocked, and which rule decides.
Domains and SSL
Domain expiry checkerCheck when one domain or a whole list expires.SSL certificate expiry checkerSee when the SSL certificates for your sites expire, who issued them and which names they cover, from public certificate transparency logs.WHOIS lookupLook up a domain's registrar, creation and expiry dates, status codes and nameservers using RDAP, the official successor to WHOIS.Domain expiry reminderNever lose a domain to a missed renewal.SSL expiry reminderFind when your SSL certificates expire and add reminders to Google Calendar, Apple Calendar or Outlook with one file.