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 2025-11-10 till 2025-11-16

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

Name Type Accuracy Inaccuracy
DCC CHECK 69.79% 6.88%
UCEPROTECT 2 DNSBL 66.7% 0%
UCEPROTECT 3 DNSBL 54% 0.03%
SPAMHAUS ZEN DNSBL 53.09% 0%
GBUDB.COM TRUNCATE DNSBL 51.6% 0%
MAILSPIKE BL DNSBL 48.86% 0%
SURBL COMBINED URIBL 46.45% 0%
SPAMCOP DNSBL 45.88% 0.06%
UCEPROTECT 1 DNSBL 45.77% 0%
SPAMRATS ALL DNSBL 41.99% 0%
SPAMHAUS PBL DNSBL 37.76% 0%
SURBL ABUSE URIBL 35.58% 0%
COMPOSITE BLOCKING LIST DNSBL 34.55% 0%
SPAMHAUS XBL DNSBL 34.55% 0%
JMF-BLACK DNSBL 32.38% 0%
DNSWL MEDIUM DNSWL 30.46% 0%
SPAMHAUS DBL URIBL 28.95% 0.03%
PSBL SURRIEL DNSBL 28.15% 0.03%
URIBL BLACKLIST URIBL 27.12% 0.12%
SPAM EATING MONKEY - BLACK DNSBL 20.37% 0%
SPAMRATS SPAM DNSBL 16.36% 0%
SURBL PHISHING URIBL 16.02% 0%
SPAMRATS NOPTR DNSBL 14.42% 0%
SPAMRATS DYNA DNSBL 12.01% 0%
DRONEBL DNSBL 9.04% 0.03%
JIPPG DNSBL 6.52% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 4% 0%
MAILSPIKE WL DNSWL 3.91% 1.37%
SPAM EATING MONKEY - URI RED URIBL 3.09% 0.17%
SPAM EATING MONKEY - URI BLACK URIBL 2.52% 0.17%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.06% 0%
DNSWL NONE DNSWL 1.4% 3.09%
JMF-WHITE DNSWL 1.08% 0.11%
SPAM EATING MONKEY - URI FRESH URIBL 1.03% 0%
SPAMHAUS SBL URIBL 0.92% 0%
DNSWL LOW DNSWL 0.82% 0%
SURBL MALWARE URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
DNSWL HIGH DNSWL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%

View the data processing guide to learn more.