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 2026-03-23 till 2026-03-29

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 15.14% 0.02%
DCC CHECK 82.57% 10.6%
DNSWL HIGH DNSWL 0.08% 0%
DNSWL LOW DNSWL 0.47% 0.08%
DNSWL MEDIUM DNSWL 1.47% 0%
DNSWL NONE DNSWL 0.9% 3.64%
DRONEBL DNSBL 8.38% 0.16%
GBUDB.COM TRUNCATE DNSBL 38.32% 0.04%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 4.82% 0%
JMF-BLACK DNSBL 32.23% 0%
JMF-WHITE DNSWL 0.37% 0.17%
MAILSPIKE BL DNSBL 38.07% 0%
MAILSPIKE WL DNSWL 2.13% 1.61%
PSBL SURRIEL DNSBL 22.17% 0%
SPAM EATING MONKEY - BLACK DNSBL 11.59% 0%
SPAM EATING MONKEY - URI BLACK URIBL 5.41% 0%
SPAM EATING MONKEY - URI FRESH URIBL 1.44% 0.02%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.61% 0.02%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.12% 0.06%
SPAM EATING MONKEY - URI RED URIBL 5.84% 0%
SPAMCOP DNSBL 41.54% 0%
SPAMHAUS DBL URIBL 23.52% 0.06%
SPAMHAUS PBL DNSBL 18.87% 0.02%
SPAMHAUS SBL URIBL 0.34% 0.06%
SPAMHAUS XBL DNSBL 15.14% 0.02%
SPAMHAUS ZEN DNSBL 37.9% 0.02%
SPAMRATS ALL DNSBL 34.01% 0%
SPAMRATS DYNA DNSBL 5.16% 0%
SPAMRATS NOPTR DNSBL 11.25% 0%
SPAMRATS SPAM DNSBL 18.19% 0%
SURBL ABUSE URIBL 36.38% 0%
SURBL COMBINED URIBL 40.36% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 13.54% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 30.46% 0%
UCEPROTECT 2 DNSBL 53.13% 0.04%
UCEPROTECT 3 DNSBL 52.28% 59.5%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 30.03% 0.12%

View the data processing guide to learn more.