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

View the data processing guide to learn more.