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

View the data processing guide to learn more.