Free domain tools
Every one of these works with no account and no email. Each result is written down with the date it was read, so the second check tells you something the first one could not.
- Domain Rating checker
Type a domain. See its Domain Rating, its popularity rank, how old it is, when its certificate expires and which AI crawlers it blocks.
- Bulk Domain Rating checker
Paste your list, one domain per line. No account, no captcha, no daily limit.
- AI crawler checker
Check what a site tells GPTBot, ClaudeBot, PerplexityBot and five more, and whether the edge agrees with the file.
- llms.txt checker
Check whether a site publishes an llms.txt file, and whether the file is actually valid.
- Certificate expiry checker
Check when a certificate expires, who issued it, and how many names it covers.
- Domain badges
Five embeddable badges for any domain, each linking to that domain’s own record.
Where the caps are, and where they are not
One column here costs money to read and the rest do not, so one column has a cap and the rest do not. Domain Rating comes from Ahrefs and is capped at 100 domains a run without an account, 1,000 with one, and not at all for domains you already track.
Popularity rank, certificate expiry, DNS and AI crawler policy have no cap at any tier. We read those ourselves, straight from the domain or from a list already on our disk, so there is nobody to be unfair to.
Registration age caps at 25 a run, because the registries answer about ten requests a minute and we would rather tell you that than make you wait.