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 2025-03-17 till 2025-03-23

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

Name Type Accuracy Inaccuracy
DCC CHECK 75.55% 2.33%
DNSWL MEDIUM DNSWL 71.58% 0.1%
UCEPROTECT 2 DNSBL 55.78% 0.37%
GBUDB.COM TRUNCATE DNSBL 54.84% 0%
SURBL COMBINED URIBL 45.16% 0%
SPAMRATS ALL DNSBL 42.98% 0%
SPAMHAUS ZEN DNSBL 40.48% 0%
MAILSPIKE BL DNSBL 39.33% 0%
UCEPROTECT 3 DNSBL 37.25% 44.75%
SURBL ABUSE URIBL 37.04% 0%
SPAMHAUS DBL URIBL 36.11% 0.12%
JMF-BLACK DNSBL 35.38% 0.09%
URIBL BLACKLIST URIBL 34.86% 0.12%
UCEPROTECT 1 DNSBL 32.57% 0%
SPAMCOP DNSBL 30.49% 0%
PSBL SURRIEL DNSBL 29.76% 0.03%
SPAMHAUS PBL DNSBL 29.34% 0%
SPAMRATS SPAM DNSBL 20.19% 0%
SURBL PHISHING URIBL 19.77% 0%
SPAMHAUS XBL DNSBL 14.57% 0%
COMPOSITE BLOCKING LIST DNSBL 14.57% 0%
SPAMRATS NOPTR DNSBL 14.05% 0%
JIPPG DNSBL 13.94% 0%
SPAM EATING MONKEY - BLACK DNSBL 10.72% 0%
SPAMRATS DYNA DNSBL 10.3% 0%
DRONEBL DNSBL 6.97% 0.03%
MAILSPIKE WL DNSWL 3.04% 1.66%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.5% 0.03%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.39% 0.03%
SPAM EATING MONKEY - URI FRESH URIBL 2.19% 0%
SPAM EATING MONKEY - URI RED URIBL 1.56% 0.03%
DNSWL NONE DNSWL 0.98% 2.29%
SPAM EATING MONKEY - URI BLACK URIBL 0.83% 0.03%
JMF-WHITE DNSWL 0.83% 0.21%
DNSWL LOW DNSWL 0.8% 0.1%
SPAMHAUS SBL URIBL 0.1% 0%
DNSWL HIGH DNSWL 0.09% 0%
SURBL CRACKED SITES URIBL 0% 0%
CBLCN PLUS DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
WPBL DNSBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%

View the data processing guide to learn more.