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 2026-03-02 till 2026-03-08

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 31.04% 0%
DCC CHECK 78.73% 15.23%
DNSWL HIGH DNSWL 0% 0%
DNSWL LOW DNSWL 0.47% 0%
DNSWL MEDIUM DNSWL 1.42% 0%
DNSWL NONE DNSWL 1.01% 2.91%
DRONEBL DNSBL 15.72% 0.04%
GBUDB.COM TRUNCATE DNSBL 49.54% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 8.59% 0%
JMF-BLACK DNSBL 30.65% 0.04%
JMF-WHITE DNSWL 1.19% 0.4%
MAILSPIKE BL DNSBL 44.78% 0%
MAILSPIKE WL DNSWL 2.53% 1.85%
PSBL SURRIEL DNSBL 21.14% 0%
SPAM EATING MONKEY - BLACK DNSBL 8.59% 0%
SPAM EATING MONKEY - URI BLACK URIBL 3.7% 0%
SPAM EATING MONKEY - URI FRESH URIBL 1.98% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.38% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.51% 0%
SPAM EATING MONKEY - URI RED URIBL 3.7% 0%
SPAMCOP DNSBL 42.67% 0%
SPAMHAUS DBL URIBL 30.78% 0.04%
SPAMHAUS PBL DNSBL 33.55% 0%
SPAMHAUS SBL URIBL 0% 0.04%
SPAMHAUS XBL DNSBL 31.04% 0%
SPAMHAUS ZEN DNSBL 53.37% 0%
SPAMRATS ALL DNSBL 46.76% 0%
SPAMRATS DYNA DNSBL 5.02% 0%
SPAMRATS NOPTR DNSBL 25.1% 0%
SPAMRATS SPAM DNSBL 18.36% 0%
SURBL ABUSE URIBL 45.31% 0.02%
SURBL COMBINED URIBL 48.22% 0.02%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 17.7% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 35.54% 0%
UCEPROTECT 2 DNSBL 50.99% 0%
UCEPROTECT 3 DNSBL 40.16% 0.1%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 26.29% 0.12%

View the data processing guide to learn more.