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

View the data processing guide to learn more.