Blacklist Checker
Check if a domain is listed on Spamhaus, SURBL, URIBL, Barracuda, or SpamCop.
Domain Blacklist Checker
Check if a domain is listed on major DNS-based blacklists. Being listed on a blacklist can cause email delivery failures, reduce search visibility, and damage your domain reputation. Our checker queries Spamhaus DBL, SURBL, URIBL, Barracuda, SpamCop, and Spamhaus ZEN to give you a complete picture of your domain blacklist status.
Blacklists we check
- Spamhaus DBL — domain-based blocklist for known spam domains
- Spamhaus ZEN — combined IP blocklist (SBL, XBL, PBL)
- SURBL — URI-based blocklist for spam message content
- URIBL — real-time URI blocklist for phishing and malware
- Barracuda — reputation-based blocklist for email filtering
- SpamCop — community-driven blocklist from user reports
What to do if your domain is blacklisted
If your domain appears on a blocklist, identify the root cause — common reasons include compromised accounts sending spam, misconfigured mail servers, or hosting malware. Once the issue is resolved, most blocklist providers offer a delisting request process. Spamhaus and Barracuda provide self-service removal tools, while others may delist automatically after the issue is fixed. Regular monitoring helps catch listings early before they impact email deliverability or search rankings.