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

View the data processing guide to learn more.