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

View the data processing guide to learn more.