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 2026-04-27 till 2026-05-03

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 39.36% 0%
DCC CHECK 82.69% 11.12%
DNSWL HIGH DNSWL 0.24% 0%
DNSWL LOW DNSWL 0.35% 0%
DNSWL MEDIUM DNSWL 3.65% 0.1%
DNSWL NONE DNSWL 0.95% 2.61%
DRONEBL DNSBL 11.9% 0.33%
GBUDB.COM TRUNCATE DNSBL 47.87% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 10.44% 0%
JMF-BLACK DNSBL 34.82% 0.04%
JMF-WHITE DNSWL 2.06% 0.39%
MAILSPIKE BL DNSBL 39.85% 0%
MAILSPIKE WL DNSWL 4.89% 1.74%
PSBL SURRIEL DNSBL 16.83% 0%
SPAM EATING MONKEY - BLACK DNSBL 13.44% 0%
SPAM EATING MONKEY - URI BLACK URIBL 15.67% 0.64%
SPAM EATING MONKEY - URI FRESH URIBL 3.48% 0.04%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.48% 0.07%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.58% 0.07%
SPAM EATING MONKEY - URI RED URIBL 16.15% 0.69%
SPAMCOP DNSBL 39.07% 0%
SPAMHAUS DBL URIBL 28.24% 0.07%
SPAMHAUS PBL DNSBL 22.05% 0%
SPAMHAUS SBL URIBL 0.87% 0.04%
SPAMHAUS XBL DNSBL 39.36% 0%
SPAMHAUS ZEN DNSBL 64.89% 0%
SPAMRATS ALL DNSBL 42.65% 0%
SPAMRATS DYNA DNSBL 8.41% 0%
SPAMRATS NOPTR DNSBL 21.76% 0%
SPAMRATS SPAM DNSBL 12.86% 0%
SURBL ABUSE URIBL 33.95% 0.04%
SURBL COMBINED URIBL 35.69% 0.04%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 12.09% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 26.5% 0%
UCEPROTECT 2 DNSBL 35.69% 3.06%
UCEPROTECT 3 DNSBL 39.65% 4.65%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 32.98% 0.16%

View the data processing guide to learn more.