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 2026-06-22 till 2026-06-28

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

Name Type Accuracy Inaccuracy
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
DNSWL HIGH DNSWL 0.05% 0%
DNSWL LOW DNSWL 0.44% 0%
SPAMHAUS SBL URIBL 0.79% 1.33%
SPAM EATING MONKEY - URI FRESH URIBL 1.18% 0%
DNSWL NONE DNSWL 1.28% 1.18%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.38% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.38% 0%
JMF-WHITE DNSWL 1.41% 0%
DNSWL MEDIUM DNSWL 1.95% 0%
MAILSPIKE WL DNSWL 3% 0.79%
SURBL PHISHING URIBL 4.83% 0%
SPAM EATING MONKEY - BLACK DNSBL 7.59% 0%
PSBL SURRIEL DNSBL 13.5% 0%
SPAMRATS DYNA DNSBL 16.16% 0%
JIPPG DNSBL 16.65% 0%
SPAMRATS SPAM DNSBL 17.34% 0%
SURBL ABUSE URIBL 18.23% 0%
DRONEBL DNSBL 18.82% 0%
SPAMHAUS DBL URIBL 19.21% 0.03%
SURBL COMBINED URIBL 22.17% 0%
SPAMRATS NOPTR DNSBL 25.32% 0%
URIBL BLACKLIST URIBL 25.32% 1.77%
SPAM EATING MONKEY - URI BLACK URIBL 30.54% 0.34%
SPAM EATING MONKEY - URI RED URIBL 30.64% 0.34%
SPAMHAUS PBL DNSBL 31.53% 0%
MAILSPIKE BL DNSBL 34.29% 0%
JMF-BLACK DNSBL 36.75% 0.03%
UCEPROTECT 3 DNSBL 36.75% 0.13%
UCEPROTECT 1 DNSBL 39.21% 0%
SPAMCOP DNSBL 42.96% 0.05%
UCEPROTECT 2 DNSBL 43.55% 0.05%
COMPOSITE BLOCKING LIST DNSBL 50.05% 0%
GBUDB.COM TRUNCATE DNSBL 50.15% 0%
SPAMHAUS XBL DNSBL 50.15% 0%
SPAMRATS ALL DNSBL 56.85% 0%
SPAMHAUS ZEN DNSBL 72.22% 0%
DCC CHECK 87.39% 23.38%

View the data processing guide to learn more.