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 2025-12-15 till 2025-12-21

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

Name Type Accuracy Inaccuracy
UCEPROTECT 3 DNSBL 32.8% 49.18%
DNSWL NONE DNSWL 1.24% 19.4%
DCC CHECK 77.38% 8.76%
MAILSPIKE WL DNSWL 3.05% 1.93%
URIBL BLACKLIST URIBL 24.33% 0.22%
DRONEBL DNSBL 27.87% 0.1%
UCEPROTECT 1 DNSBL 32.15% 0.06%
UCEPROTECT 2 DNSBL 47.59% 0.06%
SPAM EATING MONKEY - URI BLACK URIBL 5.57% 0.03%
SPAM EATING MONKEY - URI RED URIBL 5.89% 0.03%
SPAMHAUS DBL URIBL 27.76% 0.03%
SPAMCOP DNSBL 43.09% 0.03%
SURBL COMBINED URIBL 39.01% 0.03%
SPAM EATING MONKEY - BLACK DNSBL 13.61% 0%
JIPPG DNSBL 9.32% 0%
DNSWL LOW DNSWL 0.19% 0%
DNSWL MEDIUM DNSWL 2.54% 0%
SPAMHAUS PBL DNSBL 36.33% 0%
DNSWL HIGH DNSWL 0.19% 0%
SPAMHAUS ZEN DNSBL 49.3% 0%
MAILSPIKE BL DNSBL 39.23% 0%
SPAMRATS ALL DNSBL 45.44% 0%
SPAM EATING MONKEY - URI FRESH URIBL 0.96% 0%
JMF-WHITE DNSWL 0.63% 0%
SPAMHAUS XBL DNSBL 33.44% 0%
COMPOSITE BLOCKING LIST DNSBL 33.44% 0%
GBUDB.COM TRUNCATE DNSBL 42.55% 0%
SURBL ABUSE URIBL 34.3% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SPAMRATS NOPTR DNSBL 23.69% 0%
SPAMRATS DYNA DNSBL 8.36% 0%
PSBL SURRIEL DNSBL 36.23% 0%
SPAMHAUS SBL URIBL 0.54% 0%
SURBL PHISHING URIBL 16.83% 0%
SWINOG DNSRBL DNSBL 0% 0%
JMF-BLACK DNSBL 26.47% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.71% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAMRATS SPAM DNSBL 15.43% 0%
SWINOG URIBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.61% 0%

View the data processing guide to learn more.