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 2026-03-09 till 2026-03-15

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 28.35% 0%
SPAM EATING MONKEY - BLACK DNSBL 16.84% 0%
SURBL COMBINED URIBL 54.43% 0%
IMP SPAMLIST DNSBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAMRATS SPAM DNSBL 17.34% 0%
JIPPG DNSBL 6.71% 0%
SPAMHAUS PBL DNSBL 35.7% 0%
MAILSPIKE BL DNSBL 47.85% 0%
SPAMRATS ALL DNSBL 47.09% 0%
SPAMHAUS XBL DNSBL 28.35% 0%
SPAMHAUS ZEN DNSBL 55.32% 0%
DNSWL HIGH DNSWL 0.02% 0%
SPAM EATING MONKEY - URI BLACK URIBL 7.59% 0%
GBUDB.COM TRUNCATE DNSBL 56.46% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SPAMRATS NOPTR DNSBL 25.06% 0%
SPAMRATS DYNA DNSBL 6.2% 0%
PSBL SURRIEL DNSBL 25.95% 0%
SPAMCOP DNSBL 48.86% 0%
SURBL PHISHING URIBL 18.1% 0%
SURBL ABUSE URIBL 50% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 7.59% 0.02%
SPAMHAUS DBL URIBL 39.24% 0.02%
UCEPROTECT 1 DNSBL 31.39% 0.02%
JMF-BLACK DNSBL 36.33% 0.02%
UCEPROTECT 2 DNSBL 53.29% 0.02%
SPAMHAUS SBL URIBL 0.51% 0.02%
DRONEBL DNSBL 16.46% 0.1%
UCEPROTECT 3 DNSBL 39.87% 0.12%
DNSWL LOW DNSWL 0.24% 0.13%
DNSWL MEDIUM DNSWL 1.61% 0.13%
URIBL BLACKLIST URIBL 27.34% 0.18%
JMF-WHITE DNSWL 0.79% 0.25%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.29% 0.45%
SPAM EATING MONKEY - URI FRESH URIBL 2.66% 0.45%
SPAM EATING MONKEY - URI FRESH 15 URIBL 4.3% 0.45%
MAILSPIKE WL DNSWL 3.07% 2.28%
DNSWL NONE DNSWL 1.22% 4.68%
DCC CHECK 77.47% 13.66%

View the data processing guide to learn more.