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

View the data processing guide to learn more.