Blacklist check

Check IP against 15 major DNSBLs: Spamhaus, Barracuda, SpamCop and more.

IP Blacklist Check

Check if an IP address is listed in blacklists (DNSBL/RBL). Being listed can block email delivery and reduce domain reputation.

Check against multiple DNSBL databases
Block reason detection
Delisting recommendations

How to Use

  1. Enter the IP address you want to check against blacklists
  2. Run the check — the system will query 15 popular DNSBL databases
  3. Get a report showing which blacklist databases the IP is found in

FAQ

Contact the RBL operator for delisting, fix the cause (spam, viruses), configure SPF/DKIM/DMARC.
Also try
My IP Address
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Reverse DNS
SPF Check