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

2025-02-27

We thank the Nixspam team for their service and have removed the defunct lists.
» More news

Blacklists performance from 2025-06-02 till 2025-06-08

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

Name Type Accuracy Inaccuracy
DCC CHECK 66.84% 5.48%
DNSWL MEDIUM DNSWL 61.88% 0%
SPAMRATS ALL DNSBL 57.05% 0%
SURBL COMBINED URIBL 56.95% 0%
SURBL ABUSE URIBL 49.58% 0%
UCEPROTECT 3 DNSBL 48.21% 0.04%
SPAMHAUS ZEN DNSBL 47.05% 0.07%
UCEPROTECT 2 DNSBL 45.37% 0.22%
MAILSPIKE BL DNSBL 44.42% 0%
UCEPROTECT 1 DNSBL 41.68% 0%
PSBL SURRIEL DNSBL 38.32% 0%
SPAMHAUS DBL URIBL 37.47% 0.11%
SPAMRATS SPAM DNSBL 37.16% 0%
GBUDB.COM TRUNCATE DNSBL 34.11% 0.07%
SPAMCOP DNSBL 33.26% 0%
SPAMHAUS PBL DNSBL 30.32% 0.07%
URIBL BLACKLIST URIBL 29.26% 0.11%
JMF-BLACK DNSBL 27.68% 0.07%
COMPOSITE BLOCKING LIST DNSBL 25.16% 0%
SPAMHAUS XBL DNSBL 25.16% 0%
SURBL PHISHING URIBL 16.53% 0%
SPAM EATING MONKEY - BLACK DNSBL 14.11% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 13.05% 0%
SPAMRATS DYNA DNSBL 11.68% 0%
JIPPG DNSBL 9.79% 0%
SPAMRATS NOPTR DNSBL 8.84% 0%
SPAM EATING MONKEY - URI RED URIBL 8.21% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 6.11% 0%
SPAM EATING MONKEY - URI BLACK URIBL 5.16% 0%
MAILSPIKE WL DNSWL 4.33% 2.53%
DRONEBL DNSBL 3.58% 0.07%
SPAM EATING MONKEY - URI FRESH URIBL 3.16% 0%
DNSWL NONE DNSWL 1.84% 3.26%
DNSWL HIGH DNSWL 1.23% 0%
JMF-WHITE DNSWL 0.65% 0.32%
SPAMHAUS SBL URIBL 0.63% 0%
DNSWL LOW DNSWL 0.25% 0%
CBLCN PLUS DNSBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SWINOG URIBL URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
WPBL DNSBL 0% 0%

View the data processing guide to learn more.