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 2026-05-11 till 2026-05-17

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

Name Type Accuracy Inaccuracy
DCC CHECK 79.83% 9.63%
COMPOSITE BLOCKING LIST DNSBL 33.2% 0.02%
SPAM EATING MONKEY - BLACK DNSBL 19.96% 0%
JMF-BLACK DNSBL 35.16% 0.02%
SPAMRATS SPAM DNSBL 12.31% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
JIPPG DNSBL 7.96% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAMHAUS PBL DNSBL 28.02% 0.02%
DRONEBL DNSBL 8.07% 0.05%
SPAMRATS ALL DNSBL 44.88% 0%
MAILSPIKE BL DNSBL 44.26% 0.02%
SPAMHAUS XBL DNSBL 33.2% 0.02%
SPAMHAUS ZEN DNSBL 70.11% 0.02%
UCEPROTECT 3 DNSBL 44.47% 0%
GBUDB.COM TRUNCATE DNSBL 50.36% 0.02%
SPAMRATS NOPTR DNSBL 25.23% 0%
SPAMRATS DYNA DNSBL 7.96% 0%
SWINOG DNSRBL DNSBL 0% 0%
UCEPROTECT 1 DNSBL 31.54% 0%
PSBL SURRIEL DNSBL 24.2% 0%
SPAMCOP DNSBL 47.47% 0%
UCEPROTECT 2 DNSBL 43.85% 0.02%
DNSWL MEDIUM DNSWL 3.34% 0%
JMF-WHITE DNSWL 1.36% 0.41%
DNSWL HIGH DNSWL 0.02% 0%
MAILSPIKE WL DNSWL 3.86% 1.34%
DNSWL NONE DNSWL 0.89% 2.9%
DNSWL LOW DNSWL 0.37% 0%
SPAMHAUS SBL URIBL 0% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.59% 0.07%
SPAMHAUS DBL URIBL 29.68% 0%
SURBL ABUSE URIBL 31.54% 0.02%
SPAM EATING MONKEY - URI FRESH 15 URIBL 6.62% 0.07%
SWINOG URIBL URIBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 13.44% 0.47%
SPAM EATING MONKEY - URI BLACK URIBL 13.34% 0.47%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3% 0.07%
SURBL COMBINED URIBL 34.33% 0.02%
SURBL CRACKED SITES URIBL 0.1% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 9.41% 0%
URIBL BLACKLIST URIBL 31.85% 0.07%

View the data processing guide to learn more.