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 2026-07-20 till 2026-07-26

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 47.21% 0%
SPAM EATING MONKEY - BLACK DNSBL 7.31% 0%
JIPPG DNSBL 11.17% 0%
SURBL COMBINED URIBL 16.95% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.44% 0%
IMP SPAMLIST DNSBL 0% 0%
JMF-BLACK DNSBL 32.39% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.54% 0%
SPAMHAUS PBL DNSBL 24.87% 0%
DNSWL HIGH DNSWL 0.17% 0%
MAILSPIKE BL DNSBL 39.8% 0%
DRONEBL DNSBL 15.33% 0%
SPAMRATS ALL DNSBL 50.36% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.34% 0%
SPAMHAUS XBL DNSBL 47.21% 0%
DNSWL MEDIUM DNSWL 3.3% 0%
DNSWL LOW DNSWL 0.38% 0%
SPAMHAUS ZEN DNSBL 63.45% 0%
SPAMRATS SPAM DNSBL 15.53% 0%
GBUDB.COM TRUNCATE DNSBL 46.4% 0%
SURBL ABUSE URIBL 12.08% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SPAMRATS NOPTR DNSBL 21.12% 0%
SPAMRATS DYNA DNSBL 15.84% 0%
PSBL SURRIEL DNSBL 8.53% 0%
SPAMCOP DNSBL 39.29% 0%
SURBL PHISHING URIBL 5.58% 0%
SURBL CRACKED SITES URIBL 0% 0%
UCEPROTECT 3 DNSBL 29.85% 0%
UCEPROTECT 2 DNSBL 35.94% 0%
UCEPROTECT 1 DNSBL 34.31% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SPAMHAUS DBL URIBL 12.28% 0.1%
JMF-WHITE DNSWL 2.2% 0.2%
SPAM EATING MONKEY - URI BLACK URIBL 32.89% 0.22%
SPAM EATING MONKEY - URI RED URIBL 33.2% 0.22%
URIBL BLACKLIST URIBL 11.68% 0.43%
MAILSPIKE WL DNSWL 4.26% 0.81%
SPAMHAUS SBL URIBL 0.3% 1.94%
DNSWL NONE DNSWL 0.65% 2.54%
DCC CHECK 82.84% 20.94%

View the data processing guide to learn more.