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 2026-01-12 till 2026-01-18

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 36.54% 0%
SPAM EATING MONKEY - BLACK DNSBL 15.87% 0%
JIPPG DNSBL 3.49% 0%
SURBL COMBINED URIBL 48.18% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.2% 0%
IMP SPAMLIST DNSBL 0% 0%
JMF-BLACK DNSBL 35.52% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.2% 0%
SPAMHAUS PBL DNSBL 51.09% 0%
DNSWL HIGH DNSWL 0.27% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.18% 0%
MAILSPIKE BL DNSBL 52.4% 0%
SPAMRATS ALL DNSBL 54.88% 0%
SPAMHAUS DBL URIBL 33.04% 0%
SPAMHAUS XBL DNSBL 36.54% 0%
DNSWL MEDIUM DNSWL 3.53% 0%
DNSWL LOW DNSWL 0.11% 0%
SPAMHAUS ZEN DNSBL 60.84% 0%
SPAMRATS SPAM DNSBL 16.3% 0%
GBUDB.COM TRUNCATE DNSBL 53.86% 0%
SURBL ABUSE URIBL 42.65% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SPAMRATS NOPTR DNSBL 30.71% 0%
SPAMRATS DYNA DNSBL 9.75% 0%
PSBL SURRIEL DNSBL 25.33% 0%
SPAMCOP DNSBL 49.2% 0%
SPAMHAUS SBL URIBL 0.29% 0%
SURBL PHISHING URIBL 19.36% 0%
SURBL CRACKED SITES URIBL 0% 0%
SPAM EATING MONKEY - URI BLACK URIBL 3.06% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 3.49% 0%
UCEPROTECT 2 DNSBL 65.79% 0.03%
UCEPROTECT 1 DNSBL 49.34% 0.03%
DRONEBL DNSBL 10.92% 0.05%
URIBL BLACKLIST URIBL 27.37% 0.08%
UCEPROTECT 3 DNSBL 42.94% 0.11%
JMF-WHITE DNSWL 0.54% 0.58%
MAILSPIKE WL DNSWL 3.05% 2.77%
DCC CHECK 75.84% 5.4%
DNSWL NONE DNSWL 0.76% 5.68%

View the data processing guide to learn more.