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 2025-04-07 till 2025-04-13

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

Name Type Accuracy Inaccuracy
DCC CHECK 71.33% 5.31%
DNSWL NONE DNSWL 0.95% 4.27%
MAILSPIKE WL DNSWL 0.77% 0.44%
JMF-WHITE DNSWL 0.41% 0.22%
UCEPROTECT 2 DNSBL 48.25% 0.18%
DNSWL MEDIUM DNSWL 74.28% 0.11%
JMF-BLACK DNSBL 36.43% 0.08%
URIBL BLACKLIST URIBL 29.87% 0.08%
SPAMCOP DNSBL 28.45% 0.05%
SPAMHAUS DBL URIBL 36.11% 0.05%
UCEPROTECT 3 DNSBL 33.92% 0.03%
DNSWL HIGH DNSWL 0.72% 0%
JIPPG DNSBL 10.39% 0%
COMPOSITE BLOCKING LIST DNSBL 15.86% 0%
SPAM EATING MONKEY - BLACK DNSBL 10.18% 0%
DNSWL LOW DNSWL 0.28% 0%
SPAMHAUS PBL DNSBL 23.09% 0%
SPAMHAUS XBL DNSBL 15.86% 0%
DRONEBL DNSBL 3.5% 0%
SPAMRATS ALL DNSBL 48.91% 0%
CBLCN PLUS DNSBL 0% 0%
MAILSPIKE BL DNSBL 21.88% 0%
SURBL COMBINED URIBL 48.69% 0%
SPAM EATING MONKEY - URI FRESH URIBL 4.27% 0%
SPAMHAUS ZEN DNSBL 42.01% 0%
GBUDB.COM TRUNCATE DNSBL 49.34% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 22.65% 0%
SURBL ABUSE URIBL 38.18% 0%
SPAMRATS NOPTR DNSBL 14.77% 0%
PSBL SURRIEL DNSBL 26.59% 0%
SPAMHAUS SBL URIBL 0.22% 0%
SPAMRATS DYNA DNSBL 11.93% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SPAMRATS SPAM DNSBL 25.82% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 4.49% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 2.84% 0%
UCEPROTECT 1 DNSBL 28.99% 0%
WPBL DNSBL 0% 0%
SPAM EATING MONKEY - URI BLACK URIBL 1.97% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 4.38% 0%

View the data processing guide to learn more.