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 2025-11-24 till 2025-11-30

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

Name Type Accuracy Inaccuracy
DCC CHECK 72.41% 15.67%
UCEPROTECT 2 DNSBL 58.62% 0%
UCEPROTECT 3 DNSBL 51.72% 0.33%
SURBL COMBINED URIBL 44.83% 0%
SPAMHAUS ZEN DNSBL 44.83% 0%
MAILSPIKE BL DNSBL 44.83% 0%
SURBL ABUSE URIBL 44.83% 0%
GBUDB.COM TRUNCATE DNSBL 44.83% 0%
SPAMHAUS DBL URIBL 43.1% 0%
SPAMCOP DNSBL 41.38% 0%
URIBL BLACKLIST URIBL 36.21% 0%
SPAMRATS ALL DNSBL 36.21% 0%
JMF-BLACK DNSBL 34.48% 0%
SPAMHAUS PBL DNSBL 32.76% 0%
UCEPROTECT 1 DNSBL 29.31% 0%
PSBL SURRIEL DNSBL 29.31% 0%
COMPOSITE BLOCKING LIST DNSBL 25.86% 0%
SPAMHAUS XBL DNSBL 25.86% 0%
DNSWL MEDIUM DNSWL 20% 0%
SPAMRATS NOPTR DNSBL 18.97% 0%
SURBL PHISHING URIBL 17.24% 0%
SPAMRATS SPAM DNSBL 17.24% 0%
SPAM EATING MONKEY - BLACK DNSBL 12.07% 0%
DRONEBL DNSBL 5.17% 0%
SPAM EATING MONKEY - URI BLACK URIBL 1.72% 0.33%
SPAMRATS DYNA DNSBL 1.72% 0%
JIPPG DNSBL 1.72% 0%
SPAM EATING MONKEY - URI RED URIBL 1.72% 0.33%
MAILSPIKE WL DNSWL 1.33% 1.72%
DNSWL NONE DNSWL 1% 5.17%
SPAM EATING MONKEY - URI FRESH URIBL 0% 0%
JMF-WHITE DNSWL 0% 0%
SPAMHAUS SBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 0% 0%
DNSWL HIGH DNSWL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0% 0%
DNSWL LOW DNSWL 0% 1.72%

View the data processing guide to learn more.