Bulk Domain Rating checker
Paste up to 100 domains. No account, no captcha, no daily limit. Most bulk checkers stop at 10.
Also free, no account:Single domainAI crawler checkerCertificate expiryAll tools
Why 100, and why only on one column
The cap is on Domain Rating alone. Ahrefs gives that number away free, on the condition that nobody builds a bulk harvesting service on top of it. We agree with them, so we do not.
Popularity rank, certificate expiry, DNS and AI crawler policy have no cap here or anywhere else, because we measure those ourselves and 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.
Sign in and Domain Rating goes to 1,000 a run. Domains you already track have no cap at all, because we read them every day regardless.
How this compares to the other free bulk checkers
Measured on 3 August 2026: the highest free anonymous cap anywhere else in this category was 50, the median was 10, and one tool that markets itself on the word bulk gave 3. Two of them ask for an account before they show you anything.
Those numbers have a date on them because they will move. If you are reading this long after that date and it looks wrong, it probably is, and we would rather you could check.
What each column means
DR is the Ahrefs Domain Rating, 0 to 100, on a logarithmic scale. Rank is the position in the Tranco research list of the million most popular domains, averaged over thirty days so one traffic spike cannot move it. Certificate is days until the certificate served at the edge expires, read by handshake rather than from a log. AI crawlers is how many of eight named agents the domain’s robots.txt blocks.
A dash means we hold no reading, not a zero. Zero is a value a domain can genuinely have, so it never stands in for missing data anywhere on this site.
Why some rows say “over cap”
Because the run named more domains than the Domain Rating cap allows, so those rows got every other column and not that one. The list stays in the order you pasted it, so the cap lands at the bottom where you can see it rather than being scattered through the table.
Does a bulk check start the history?
Yes, and this is the part no stateless checker can offer. Every reading in the table is written down with the date it was taken. Check the same list next month and the rows you see are the second point in a series, not a fresh guess.
The readings are keyed by domain rather than by account, so a list checked today without an account is still there if you make one on Friday. Nothing restarts.
Is there an API?
Yes, and it returns history rather than today. Domduck runs an MCP server with a key per account, which is the interface an agent can use directly. Every domain-data MCP server we could find is stateless. None of them returns a tracked series.
What this tool will not do
It will not give you Moz Domain Authority, because we have no Moz data and substituting a different vendor’s number for a query that says DA would be dishonest. It will not do bulk domain age, because RDAP answers about ten requests a minute and a ten-minute wait is not a tool. It will not invent a composite “website score”. Every number here is somebody’s published measurement or one we took ourselves.
Every free tool here
- 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.
- 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.