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 2025-12-01 till 2025-12-07

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 33.26% 0%
SPAM EATING MONKEY - BLACK DNSBL 17.87% 0%
JIPPG DNSBL 9.92% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.76% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.82% 0%
SPAMRATS SPAM DNSBL 13.12% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAMHAUS PBL DNSBL 39.26% 0%
DNSWL HIGH DNSWL 0.07% 0%
MAILSPIKE BL DNSBL 46.69% 0%
SPAMRATS ALL DNSBL 36.36% 0%
SPAM EATING MONKEY - URI FRESH URIBL 1.65% 0%
SPAMHAUS XBL DNSBL 33.26% 0%
DNSWL MEDIUM DNSWL 9.62% 0%
SPAMHAUS ZEN DNSBL 49.79% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
GBUDB.COM TRUNCATE DNSBL 49.9% 0%
SPAMRATS NOPTR DNSBL 15.39% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 20.97% 0%
SPAMRATS DYNA DNSBL 9.92% 0%
SPAMHAUS SBL URIBL 0.21% 0%
PSBL SURRIEL DNSBL 24.38% 0%
SPAMCOP DNSBL 49.17% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0.1% 0%
URIBL BLACKLIST URIBL 23.97% 0%
SWINOG URIBL URIBL 0% 0%
SPAMHAUS DBL URIBL 34.19% 0.03%
SPAM EATING MONKEY - URI RED URIBL 5.89% 0.03%
UCEPROTECT 2 DNSBL 56.3% 0.03%
SURBL ABUSE URIBL 37.71% 0.03%
SPAM EATING MONKEY - URI BLACK URIBL 5.06% 0.03%
DRONEBL DNSBL 14.36% 0.07%
JMF-BLACK DNSBL 31.4% 0.07%
UCEPROTECT 1 DNSBL 35.95% 0.07%
SURBL COMBINED URIBL 47.31% 0.07%
JMF-WHITE DNSWL 0.3% 0.1%
DNSWL LOW DNSWL 0.1% 0.1%
DCC CHECK 78.62% 3.78%
MAILSPIKE WL DNSWL 3.35% 4.24%
DNSWL NONE DNSWL 1.28% 8.37%
UCEPROTECT 3 DNSBL 39.57% 23.83%

View the data processing guide to learn more.