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

View the data processing guide to learn more.