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 2026-08-10 till 2026-08-16

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

Name Type Accuracy Inaccuracy
DCC CHECK 83.54% 21.25%
SPAMHAUS ZEN DNSBL 62.02% 0%
SPAMRATS ALL DNSBL 54.63% 0%
COMPOSITE BLOCKING LIST DNSBL 49.49% 0%
SPAMHAUS XBL DNSBL 49.49% 0%
UCEPROTECT 2 DNSBL 49.11% 0%
GBUDB.COM TRUNCATE DNSBL 46.59% 0%
MAILSPIKE BL DNSBL 46.12% 0%
SPAMCOP DNSBL 42.56% 0%
JMF-BLACK DNSBL 41.35% 0.1%
UCEPROTECT 1 DNSBL 40.51% 0%
SPAM EATING MONKEY - URI RED URIBL 30.68% 0.07%
SPAM EATING MONKEY - URI BLACK URIBL 28.34% 0.07%
SURBL COMBINED URIBL 27.22% 0%
UCEPROTECT 3 DNSBL 24.98% 0%
SURBL ABUSE URIBL 22.08% 0%
SPAMHAUS DBL URIBL 21.61% 0.1%
SPAMHAUS PBL DNSBL 20.77% 0%
SPAMRATS SPAM DNSBL 20.58% 0%
SPAMRATS NOPTR DNSBL 18.99% 0%
SPAMRATS DYNA DNSBL 18.99% 0%
URIBL BLACKLIST URIBL 17.4% 0.37%
DRONEBL DNSBL 14.22% 0%
SURBL PHISHING URIBL 13.1% 0%
JIPPG DNSBL 12.44% 0%
PSBL SURRIEL DNSBL 10.57% 0%
SPAM EATING MONKEY - BLACK DNSBL 9.54% 0%
MAILSPIKE WL DNSWL 3.3% 1.4%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.99% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.99% 0%
DNSWL MEDIUM DNSWL 2.64% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.43% 0%
JMF-WHITE DNSWL 1.37% 0.09%
DNSWL NONE DNSWL 0.77% 2.43%
DNSWL LOW DNSWL 0.57% 0.09%
SPAMHAUS SBL URIBL 0.37% 1.43%
DNSWL HIGH DNSWL 0.07% 0%
SURBL MALWARE URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%

View the data processing guide to learn more.