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 2026-09-28 till 2026-10-04

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

Name Type Accuracy Inaccuracy
DCC CHECK 81.28% 21.43%
SPAMHAUS ZEN DNSBL 55.89% 0%
UCEPROTECT 2 DNSBL 53.79% 0.02%
GBUDB.COM TRUNCATE DNSBL 48.68% 0%
SPAMRATS ALL DNSBL 47.76% 0%
DNSWL MEDIUM DNSWL 43.21% 0%
COMPOSITE BLOCKING LIST DNSBL 40.73% 0%
SPAMHAUS XBL DNSBL 40.18% 0%
SURBL COMBINED URIBL 38.45% 0%
SURBL ABUSE URIBL 34.43% 0%
UCEPROTECT 1 DNSBL 32.6% 0%
SPAMHAUS PBL DNSBL 26.12% 0%
URIBL BLACKLIST URIBL 25.39% 0.02%
SPAMHAUS DBL URIBL 24.47% 0.02%
UCEPROTECT 3 DNSBL 24.47% 0.02%
SPAMCOP DNSBL 24.29% 0%
JMF-BLACK DNSBL 22.74% 0.05%
SURBL PHISHING URIBL 21.19% 0%
SPAM EATING MONKEY - URI BLACK URIBL 19.63% 0%
SPAM EATING MONKEY - URI RED URIBL 19.63% 0%
MAILSPIKE BL DNSBL 18.54% 0%
SPAMRATS DYNA DNSBL 17.53% 0%
SPAMRATS NOPTR DNSBL 17.35% 0%
SPAMRATS SPAM DNSBL 16.89% 0%
DRONEBL DNSBL 8.77% 0%
JIPPG DNSBL 7.21% 0%
SPAM EATING MONKEY - BLACK DNSBL 5.39% 0%
PSBL SURRIEL DNSBL 3.47% 0%
MAILSPIKE WL DNSWL 2.82% 1.1%
JMF-WHITE DNSWL 1.66% 0.09%
DNSWL NONE DNSWL 0.45% 1.92%
DNSWL LOW DNSWL 0.36% 0%
SPAMHAUS SBL URIBL 0.18% 2.09%
DNSWL HIGH DNSWL 0.02% 0%
SPAM EATING MONKEY - URI FRESH URIBL 0% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0% 0%

View the data processing guide to learn more.