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 2025-10-06 till 2025-10-12

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

Name Type Accuracy Inaccuracy
SURBL COMBINED URIBL 50.22% 0%
COMPOSITE BLOCKING LIST DNSBL 26.25% 0%
SPAM EATING MONKEY - BLACK DNSBL 20.28% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.9% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.9% 0%
SPAMRATS SPAM DNSBL 18.76% 0%
IMP SPAMLIST DNSBL 0% 0%
JMF-BLACK DNSBL 40.67% 0%
JIPPG DNSBL 7.7% 0%
SPAMHAUS PBL DNSBL 29.5% 0%
MAILSPIKE BL DNSBL 50.98% 0%
CBLCN PLUS DNSBL 0% 0%
SPAMRATS ALL DNSBL 44.03% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.93% 0%
SPAMHAUS XBL DNSBL 26.25% 0%
DNSWL HIGH DNSWL 0.33% 0%
DNSWL MEDIUM DNSWL 34.23% 0%
SPAMHAUS ZEN DNSBL 51.74% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
GBUDB.COM TRUNCATE DNSBL 52.17% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 25.49% 0%
SPAM EATING MONKEY - URI RED URIBL 4.45% 0%
SPAMRATS NOPTR DNSBL 13.77% 0%
SPAMCOP DNSBL 49.35% 0%
SPAMRATS DYNA DNSBL 12.58% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL ABUSE URIBL 43.28% 0%
WPBL DNSBL 0% 0%
UCEPROTECT 3 DNSBL 42.41% 0%
SWINOG URIBL URIBL 0% 0%
SPAM EATING MONKEY - URI BLACK URIBL 3.15% 0%
DRONEBL DNSBL 5.53% 0.04%
PSBL SURRIEL DNSBL 26.36% 0.04%
UCEPROTECT 1 DNSBL 35.79% 0.04%
UCEPROTECT 2 DNSBL 52.82% 0.04%
SPAMHAUS SBL URIBL 0.22% 0.04%
URIBL BLACKLIST URIBL 30.37% 0.08%
SPAMHAUS DBL URIBL 33.08% 0.16%
DNSWL LOW DNSWL 1.15% 0.22%
JMF-WHITE DNSWL 1.23% 0.43%
MAILSPIKE WL DNSWL 5.36% 2.82%
DCC CHECK 73.97% 4.09%
DNSWL NONE DNSWL 1.19% 4.45%

View the data processing guide to learn more.