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 2026-10-26 till 2026-11-01

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 36.12% 0%
DCC CHECK 72.67% 22.82%
DNSWL HIGH DNSWL 0.09% 0%
DNSWL LOW DNSWL 0.47% 0%
DNSWL MEDIUM DNSWL 79.02% 0%
DNSWL NONE DNSWL 0.34% 2.25%
DRONEBL DNSBL 12.86% 0%
GBUDB.COM TRUNCATE DNSBL 58.5% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 10.1% 0%
JMF-BLACK DNSBL 31.54% 0.11%
JMF-WHITE DNSWL 1.14% 0.15%
MAILSPIKE BL DNSBL 40.77% 0.06%
MAILSPIKE WL DNSWL 2.51% 0.58%
PSBL SURRIEL DNSBL 6.54% 0%
SPAM EATING MONKEY - BLACK DNSBL 13.08% 0%
SPAM EATING MONKEY - URI BLACK URIBL 22.67% 0.02%
SPAM EATING MONKEY - URI FRESH URIBL 3.92% 0.02%
SPAM EATING MONKEY - URI FRESH 10 URIBL 4.72% 0.02%
SPAM EATING MONKEY - URI FRESH 15 URIBL 5.09% 0.02%
SPAM EATING MONKEY - URI RED URIBL 22.82% 0.04%
SPAMCOP DNSBL 27.03% 0%
SPAMHAUS DBL URIBL 43.53% 0.06%
SPAMHAUS PBL DNSBL 28.27% 0%
SPAMHAUS SBL URIBL 0.29% 1.57%
SPAMHAUS XBL DNSBL 35.97% 0%
SPAMHAUS ZEN DNSBL 54.43% 0%
SPAMRATS ALL DNSBL 49.35% 0%
SPAMRATS DYNA DNSBL 19.48% 0%
SPAMRATS NOPTR DNSBL 17.95% 0%
SPAMRATS SPAM DNSBL 14.39% 0%
SURBL ABUSE URIBL 36.05% 0%
SURBL COMBINED URIBL 41.42% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 24.71% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 40.77% 0%
UCEPROTECT 2 DNSBL 58.5% 0.02%
UCEPROTECT 3 DNSBL 41.28% 0.04%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 33.43% 0.02%

View the data processing guide to learn more.