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

View the data processing guide to learn more.