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 2026-09-21 till 2026-09-27

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 39.13% 0%
DCC CHECK 79.57% 19.92%
DNSWL HIGH DNSWL 0.12% 0%
DNSWL LOW DNSWL 0.21% 0%
DNSWL MEDIUM DNSWL 2.15% 0%
DNSWL NONE DNSWL 0.51% 1.65%
DRONEBL DNSBL 8.48% 0%
GBUDB.COM TRUNCATE DNSBL 45.88% 0.04%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 5.93% 0%
JMF-BLACK DNSBL 18.78% 0.05%
JMF-WHITE DNSWL 1.58% 0.08%
MAILSPIKE BL DNSBL 20.59% 0%
MAILSPIKE WL DNSWL 2.62% 0.99%
PSBL SURRIEL DNSBL 3.71% 0%
SPAM EATING MONKEY - BLACK DNSBL 4.86% 0%
SPAM EATING MONKEY - URI BLACK URIBL 28.01% 0%
SPAM EATING MONKEY - URI FRESH URIBL 0.16% 0.04%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0.25% 0.04%
SPAM EATING MONKEY - URI FRESH 15 URIBL 0.33% 0.04%
SPAM EATING MONKEY - URI RED URIBL 28.01% 0%
SPAMCOP DNSBL 26.77% 0%
SPAMHAUS DBL URIBL 25.21% 0.05%
SPAMHAUS PBL DNSBL 23.06% 0%
SPAMHAUS SBL URIBL 0.25% 1.36%
SPAMHAUS XBL DNSBL 39.04% 0%
SPAMHAUS ZEN DNSBL 52.31% 0%
SPAMRATS ALL DNSBL 46.21% 0.05%
SPAMRATS DYNA DNSBL 18.53% 0%
SPAMRATS NOPTR DNSBL 16.89% 0%
SPAMRATS SPAM DNSBL 13.92% 0.05%
SURBL ABUSE URIBL 32.13% 0.16%
SURBL COMBINED URIBL 35.58% 0.16%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 22.57% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 31.96% 0%
UCEPROTECT 2 DNSBL 53.79% 0%
UCEPROTECT 3 DNSBL 23.81% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 26.03% 0.09%

View the data processing guide to learn more.