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 2026-04-20 till 2026-04-26

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

Name Type Accuracy Inaccuracy
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.76% 0%
COMPOSITE BLOCKING LIST DNSBL 31.1% 0%
SPAM EATING MONKEY - BLACK DNSBL 11.61% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.05% 0%
JMF-BLACK DNSBL 30.12% 0%
SPAMRATS SPAM DNSBL 18.41% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 5.71% 0%
SPAMHAUS PBL DNSBL 28.84% 0%
SPAM EATING MONKEY - URI FRESH URIBL 1.57% 0%
MAILSPIKE BL DNSBL 35.04% 0%
SPAMRATS ALL DNSBL 42.81% 0%
SPAMHAUS XBL DNSBL 31.1% 0%
SPAMHAUS ZEN DNSBL 59.25% 0%
DNSWL HIGH DNSWL 0.19% 0%
DNSWL MEDIUM DNSWL 1.96% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
GBUDB.COM TRUNCATE DNSBL 41.14% 0%
SWINOG DNSRBL DNSBL 0% 0%
SPAMRATS DYNA DNSBL 9.84% 0%
SURBL PHISHING URIBL 14.27% 0%
SURBL MALWARE URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 31.69% 0%
SPAMCOP DNSBL 32.48% 0%
SPAMRATS NOPTR DNSBL 15.35% 0%
SPAMHAUS SBL URIBL 0.69% 0%
PSBL SURRIEL DNSBL 21.26% 0%
SPAMHAUS DBL URIBL 30.02% 0.03%
SURBL ABUSE URIBL 36.02% 0.03%
SURBL COMBINED URIBL 41.04% 0.03%
JMF-WHITE DNSWL 0.61% 0.1%
DRONEBL DNSBL 9.25% 0.22%
DNSWL LOW DNSWL 0.61% 0.3%
URIBL BLACKLIST URIBL 36.52% 0.33%
UCEPROTECT 3 DNSBL 36.12% 0.47%
UCEPROTECT 2 DNSBL 42.81% 1.3%
SPAM EATING MONKEY - URI RED URIBL 13.29% 1.49%
SPAM EATING MONKEY - URI BLACK URIBL 12.11% 1.49%
MAILSPIKE WL DNSWL 2.96% 1.77%
DNSWL NONE DNSWL 0.8% 3.94%
DCC CHECK 77.07% 5.15%

View the data processing guide to learn more.