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 2026-10-12 till 2026-10-18

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 41.98% 0%
DCC CHECK 77.3% 20.51%
DNSWL HIGH DNSWL 0% 0%
DNSWL LOW DNSWL 0.49% 0%
DNSWL MEDIUM DNSWL 29.99% 0%
DNSWL NONE DNSWL 0.43% 1.27%
DRONEBL DNSBL 7.54% 0%
GBUDB.COM TRUNCATE DNSBL 47.7% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 6.27% 0%
JMF-BLACK DNSBL 29.52% 0.06%
JMF-WHITE DNSWL 1.44% 0.08%
MAILSPIKE BL DNSBL 28.25% 0%
MAILSPIKE WL DNSWL 2.53% 0.56%
PSBL SURRIEL DNSBL 6.19% 0%
SPAM EATING MONKEY - BLACK DNSBL 9.13% 0%
SPAM EATING MONKEY - URI BLACK URIBL 22.3% 0.08%
SPAM EATING MONKEY - URI FRESH URIBL 0.48% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.51% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.59% 0%
SPAM EATING MONKEY - URI RED URIBL 22.3% 0.08%
SPAMCOP DNSBL 26.43% 0%
SPAMHAUS DBL URIBL 20.79% 0.04%
SPAMHAUS PBL DNSBL 25.4% 0%
SPAMHAUS SBL URIBL 0% 0.79%
SPAMHAUS XBL DNSBL 41.59% 0%
SPAMHAUS ZEN DNSBL 56.67% 0%
SPAMRATS ALL DNSBL 45.32% 0%
SPAMRATS DYNA DNSBL 17.86% 0%
SPAMRATS NOPTR DNSBL 15.87% 0%
SPAMRATS SPAM DNSBL 14.21% 0%
SURBL ABUSE URIBL 37.14% 0%
SURBL COMBINED URIBL 41.11% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 19.37% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 33.89% 0%
UCEPROTECT 2 DNSBL 48.65% 0.02%
UCEPROTECT 3 DNSBL 26.27% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 24.37% 0.08%

View the data processing guide to learn more.