Blacklist Monitor

Welcome to our Blacklist Performance Monitoring, tracking more than 40 blacklists.

Blacklists, also known as RBL, DNSBL or URIBL, help administrators to block messages from specific IP's which have a history of sending spam. They can be used by software like SpamAssassin to reject or flag unwanted messages. Most public blacklists have their own standards and criteria for listing spammers. Hence, results can vary greatly from one to the other.

Latest News

2025-10-21

Removed the no longer operational WPBL and CBLCN lists
» More news

Blacklists performance from 2025-12-22 till 2025-12-28

Below are weekly statistics of accuracy and failure rates for specific blacklists:

Name Type Accuracy Inaccuracy
DCC CHECK 78.57% 3.96%
UCEPROTECT 2 DNSBL 64.91% 0.05%
SPAMHAUS ZEN DNSBL 61.96% 0%
SURBL COMBINED URIBL 55.12% 0%
SPAMRATS ALL DNSBL 52.02% 0%
GBUDB.COM TRUNCATE DNSBL 52.02% 0%
SPAMHAUS PBL DNSBL 51.24% 0%
SPAMCOP DNSBL 51.24% 0%
SURBL ABUSE URIBL 49.69% 0%
MAILSPIKE BL DNSBL 47.52% 0%
UCEPROTECT 1 DNSBL 41.3% 0%
UCEPROTECT 3 DNSBL 39.6% 0%
COMPOSITE BLOCKING LIST DNSBL 37.89% 0%
SPAMHAUS XBL DNSBL 37.89% 0%
SPAMHAUS DBL URIBL 36.96% 0.23%
SPAMRATS NOPTR DNSBL 32.61% 0%
URIBL BLACKLIST URIBL 29.19% 0.42%
JMF-BLACK DNSBL 25% 0.05%
SURBL PHISHING URIBL 19.72% 0%
PSBL SURRIEL DNSBL 18.79% 0%
SPAM EATING MONKEY - BLACK DNSBL 17.86% 0%
SPAM EATING MONKEY - URI RED URIBL 13.35% 0.05%
SPAM EATING MONKEY - URI BLACK URIBL 13.2% 0.05%
SPAMRATS SPAM DNSBL 11.96% 0%
DRONEBL DNSBL 11.65% 0.09%
SPAMRATS DYNA DNSBL 8.39% 0%
JIPPG DNSBL 6.52% 0%
MAILSPIKE WL DNSWL 2.61% 1.86%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.33% 0%
DNSWL MEDIUM DNSWL 1.82% 0.16%
SPAM EATING MONKEY - URI FRESH URIBL 1.55% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.55% 0%
SPAMHAUS SBL URIBL 1.09% 0%
DNSWL NONE DNSWL 0.93% 3.57%
JMF-WHITE DNSWL 0.65% 0.31%
DNSWL HIGH DNSWL 0.61% 0%
DNSWL LOW DNSWL 0.09% 0%
SURBL MALWARE URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%

View the data processing guide to learn more.