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 2026-03-16 till 2026-03-22

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 24.58% 0%
DCC CHECK 79.46% 8.19%
DNSWL HIGH DNSWL 0.22% 0%
DNSWL LOW DNSWL 0.57% 0%
DNSWL MEDIUM DNSWL 1.68% 0%
DNSWL NONE DNSWL 0.74% 4.38%
DRONEBL DNSBL 12.23% 0.07%
GBUDB.COM TRUNCATE DNSBL 43.55% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 6.4% 0%
JMF-BLACK DNSBL 28.28% 0%
JMF-WHITE DNSWL 0.81% 1.12%
MAILSPIKE BL DNSBL 42.2% 0%
MAILSPIKE WL DNSWL 2.56% 3.14%
PSBL SURRIEL DNSBL 18.63% 0%
SPAM EATING MONKEY - BLACK DNSBL 16.61% 0%
SPAM EATING MONKEY - URI BLACK URIBL 6.06% 0.02%
SPAM EATING MONKEY - URI FRESH URIBL 1.46% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.92% 0.09%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.48% 0.13%
SPAM EATING MONKEY - URI RED URIBL 6.51% 0.02%
SPAMCOP DNSBL 39.84% 0%
SPAMHAUS DBL URIBL 41.86% 0.04%
SPAMHAUS PBL DNSBL 25.81% 0%
SPAMHAUS SBL URIBL 0.34% 0.04%
SPAMHAUS XBL DNSBL 24.58% 0%
SPAMHAUS ZEN DNSBL 46.58% 0%
SPAMRATS ALL DNSBL 37.37% 0%
SPAMRATS DYNA DNSBL 6.51% 0%
SPAMRATS NOPTR DNSBL 20.2% 0%
SPAMRATS SPAM DNSBL 11.56% 0%
SURBL ABUSE URIBL 40.29% 0.02%
SURBL COMBINED URIBL 45.79% 0.02%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 13.58% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 30.08% 0%
UCEPROTECT 2 DNSBL 39.84% 0%
UCEPROTECT 3 DNSBL 49.05% 0.02%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 34.46% 0.07%

View the data processing guide to learn more.