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 2026-06-08 till 2026-06-14

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 42.19% 0%
SPAM EATING MONKEY - BLACK DNSBL 17.74% 0%
JIPPG DNSBL 6.62% 0%
SURBL COMBINED URIBL 28.67% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0.48% 0%
IMP SPAMLIST DNSBL 0% 0%
JMF-BLACK DNSBL 26.94% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 0.58% 0%
SPAMHAUS PBL DNSBL 22.44% 0%
DNSWL HIGH DNSWL 0.02% 0%
MAILSPIKE BL DNSBL 29.53% 0%
DRONEBL DNSBL 8.72% 0%
SPAMRATS ALL DNSBL 56.95% 0%
SPAM EATING MONKEY - URI FRESH URIBL 0.48% 0%
SPAMHAUS DBL URIBL 28.67% 0%
DNSWL MEDIUM DNSWL 2.04% 0%
SPAMHAUS ZEN DNSBL 66.25% 0%
SPAMHAUS XBL DNSBL 42.19% 0%
SPAMRATS SPAM DNSBL 23.01% 0%
GBUDB.COM TRUNCATE DNSBL 45.16% 0%
SURBL ABUSE URIBL 23.97% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SPAMRATS NOPTR DNSBL 16.2% 0%
SPAMRATS DYNA DNSBL 18.98% 0%
PSBL SURRIEL DNSBL 16.78% 0%
SPAMCOP DNSBL 23.01% 0%
SURBL PHISHING URIBL 5.27% 0%
SURBL CRACKED SITES URIBL 0% 0%
UCEPROTECT 1 DNSBL 30.49% 0%
SWINOG URIBL URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
URIBL BLACKLIST URIBL 25.12% 0.02%
SPAM EATING MONKEY - URI RED URIBL 15.53% 0.04%
SPAM EATING MONKEY - URI BLACK URIBL 15.24% 0.04%
UCEPROTECT 2 DNSBL 42.86% 0.04%
UCEPROTECT 3 DNSBL 33.94% 0.07%
JMF-WHITE DNSWL 1.09% 0.1%
DNSWL LOW DNSWL 0.24% 0.1%
SPAMHAUS SBL URIBL 0.1% 0.32%
MAILSPIKE WL DNSWL 2.62% 0.96%
DNSWL NONE DNSWL 0.58% 1.82%
DCC CHECK 88.4% 8.36%

View the data processing guide to learn more.