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 2026-09-07 till 2026-09-13

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 37.45% 0%
DCC CHECK 84.41% 22.51%
DNSWL HIGH DNSWL 0.38% 0%
DNSWL LOW DNSWL 0.35% 0%
DNSWL MEDIUM DNSWL 1.92% 0%
DNSWL NONE DNSWL 0.48% 5.2%
DRONEBL DNSBL 8.09% 0%
GBUDB.COM TRUNCATE DNSBL 40.82% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 7.91% 0%
JMF-BLACK DNSBL 27.29% 0.04%
JMF-WHITE DNSWL 1.36% 0%
MAILSPIKE BL DNSBL 20.79% 0%
MAILSPIKE WL DNSWL 2.55% 0.89%
PSBL SURRIEL DNSBL 6.97% 0%
SPAM EATING MONKEY - BLACK DNSBL 6.44% 0%
SPAM EATING MONKEY - URI BLACK URIBL 19.31% 0.02%
SPAM EATING MONKEY - URI FRESH URIBL 0.89% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.12% 0.04%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.59% 0.04%
SPAM EATING MONKEY - URI RED URIBL 19.85% 0.02%
SPAMCOP DNSBL 26.88% 0%
SPAMHAUS DBL URIBL 19.08% 0.08%
SPAMHAUS PBL DNSBL 22.27% 0%
SPAMHAUS SBL URIBL 0.95% 1.42%
SPAMHAUS XBL DNSBL 37.39% 0%
SPAMHAUS ZEN DNSBL 50.21% 0%
SPAMRATS ALL DNSBL 47.67% 0%
SPAMRATS DYNA DNSBL 22.45% 0%
SPAMRATS NOPTR DNSBL 15.3% 0%
SPAMRATS SPAM DNSBL 12.34% 0%
SURBL ABUSE URIBL 31.84% 0.17%
SURBL COMBINED URIBL 34.79% 0.17%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 22.39% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 29.71% 0%
UCEPROTECT 2 DNSBL 45.19% 0%
UCEPROTECT 3 DNSBL 25.4% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 21.68% 0.17%

View the data processing guide to learn more.