Domain blacklist checker
See whether the security filters from Cloudflare, AdGuard and Quad9 block a domain, and whether Spamhaus DBL, SURBL or URIBL list it as a spam source. Free, no sign-up.
Hear about a listing the day it happens.
Barkme checks every verified domain against security filters and spam blocklists daily, alerts you once when it is listed, and once when it clears. Free plan included.
What we check
Every check, and why it matters.
Security blocklists
Whether the protective DNS services from Cloudflare, AdGuard and Quad9 block your domain as malicious.
Why it matters. Millions of people browse through these filters. When one flags your domain, those visitors cannot reach you at all - usually a sign the site was compromised.
Spam blocklists
Whether your domain appears on Spamhaus DBL, SURBL or URIBL - the domain blocklists spam filters rely on.
Why it matters. A listing gets mail rejected or sent to spam wherever those lists are used, including other people's mail that merely links to you.
Reading the results
Five verdicts.
- Pass
- Healthy. Nothing to do.
- Warning
- Works today, but worth fixing before it causes trouble.
- Fail
- Broken, or about to break. Fix these first.
- Info
- Optional or informational. Not a problem.
- Not checked
- We did not get a clear answer. It says nothing bad about your domain - try again later.
What we do - and don't
A light touch.
- DNS lookups against public filtering resolvers and blocklists only. Your server is never contacted.
- Results are kept for 24 hours so you can share the link. We do not record who ran the check.