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 2026-11-02 till 2026-11-08

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 41.39% 0%
DCC CHECK 77.32% 25.71%
DNSWL HIGH DNSWL 0.03% 0%
DNSWL LOW DNSWL 0.14% 0%
DNSWL MEDIUM DNSWL 87.01% 0%
DNSWL NONE DNSWL 0.41% 1.06%
DRONEBL DNSBL 6.45% 0%
GBUDB.COM TRUNCATE DNSBL 49.33% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 4.68% 0%
JMF-BLACK DNSBL 25.37% 0.06%
JMF-WHITE DNSWL 1.39% 0.28%
MAILSPIKE BL DNSBL 35.22% 0%
MAILSPIKE WL DNSWL 2.62% 0.64%
PSBL SURRIEL DNSBL 3.54% 0%
SPAM EATING MONKEY - BLACK DNSBL 11.06% 0%
SPAM EATING MONKEY - URI BLACK URIBL 16.44% 0%
SPAM EATING MONKEY - URI FRESH URIBL 0.43% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0.5% 0.03%
SPAM EATING MONKEY - URI FRESH 15 URIBL 0.92% 0.05%
SPAM EATING MONKEY - URI RED URIBL 16.51% 0%
SPAMCOP DNSBL 21.19% 0%
SPAMHAUS DBL URIBL 26.08% 0.02%
SPAMHAUS PBL DNSBL 23.53% 0%
SPAMHAUS SBL URIBL 0.14% 1.24%
SPAMHAUS XBL DNSBL 41.32% 0%
SPAMHAUS ZEN DNSBL 54.71% 0%
SPAMRATS ALL DNSBL 45.07% 0%
SPAMRATS DYNA DNSBL 21.9% 0%
SPAMRATS NOPTR DNSBL 13.18% 0%
SPAMRATS SPAM DNSBL 12.9% 0%
SURBL ABUSE URIBL 28.63% 0%
SURBL COMBINED URIBL 34.09% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 21.33% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 35.08% 0%
UCEPROTECT 2 DNSBL 60.45% 0.02%
UCEPROTECT 3 DNSBL 33.03% 0.02%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 31.61% 0.11%

View the data processing guide to learn more.