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

View the data processing guide to learn more.