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 2026-08-31 till 2026-09-06

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 44.05% 0%
DCC CHECK 76.98% 19.2%
DNSWL HIGH DNSWL 0.02% 0%
DNSWL LOW DNSWL 0.12% 0%
DNSWL MEDIUM DNSWL 1.21% 0%
DNSWL NONE DNSWL 0.48% 2.92%
DRONEBL DNSBL 14.83% 0%
GBUDB.COM TRUNCATE DNSBL 49.68% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 11.55% 0%
JMF-BLACK DNSBL 35% 0%
JMF-WHITE DNSWL 0.54% 0%
MAILSPIKE BL DNSBL 31.86% 0%
MAILSPIKE WL DNSWL 1.52% 0.64%
PSBL SURRIEL DNSBL 6.49% 0%
SPAM EATING MONKEY - BLACK DNSBL 6.91% 0%
SPAM EATING MONKEY - URI BLACK URIBL 17.11% 0.39%
SPAM EATING MONKEY - URI FRESH URIBL 0.5% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0.93% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.21% 0%
SPAM EATING MONKEY - URI RED URIBL 17.25% 0.39%
SPAMCOP DNSBL 36.78% 0%
SPAMHAUS DBL URIBL 20.53% 0.02%
SPAMHAUS PBL DNSBL 22.88% 0%
SPAMHAUS SBL URIBL 0.14% 1.41%
SPAMHAUS XBL DNSBL 43.98% 0%
SPAMHAUS ZEN DNSBL 57.88% 0%
SPAMRATS ALL DNSBL 48.82% 0%
SPAMRATS DYNA DNSBL 16.25% 0%
SPAMRATS NOPTR DNSBL 20.38% 0%
SPAMRATS SPAM DNSBL 14.68% 0%
SURBL ABUSE URIBL 33.64% 0.04%
SURBL COMBINED URIBL 37.63% 0.04%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 27.3% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 36.49% 0%
UCEPROTECT 2 DNSBL 47.75% 0%
UCEPROTECT 3 DNSBL 29.94% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 22.45% 0.06%

View the data processing guide to learn more.