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 2025-07-07 till 2025-07-13

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

Name Type Accuracy Inaccuracy
DCC CHECK 73.64% 6.63%
MAILSPIKE WL DNSWL 3.37% 1.67%
DNSWL NONE DNSWL 0.76% 1.58%
UCEPROTECT 3 DNSBL 30.67% 0.09%
DNSWL LOW DNSWL 0.03% 0.09%
SURBL COMBINED URIBL 60.81% 0.09%
SURBL ABUSE URIBL 52.02% 0.09%
JMF-WHITE DNSWL 1.48% 0.09%
JMF-BLACK DNSBL 28.3% 0.06%
URIBL BLACKLIST URIBL 44.02% 0.03%
PSBL SURRIEL DNSBL 26.63% 0.03%
SPAM EATING MONKEY - URI FRESH 15 URIBL 5.98% 0.03%
SPAM EATING MONKEY - URI FRESH 10 URIBL 5.98% 0.03%
SPAMHAUS SBL URIBL 0.18% 0.03%
DNSWL HIGH DNSWL 0.23% 0%
JIPPG DNSBL 3.34% 0%
DNSWL MEDIUM DNSWL 76.02% 0%
SPAMHAUS PBL DNSBL 44.73% 0%
SPAMHAUS ZEN DNSBL 51.85% 0%
SPAM EATING MONKEY - URI FRESH URIBL 5.98% 0%
MAILSPIKE BL DNSBL 48.59% 0%
DRONEBL DNSBL 4.22% 0%
SPAMHAUS DBL URIBL 32.6% 0%
SPAM EATING MONKEY - BLACK DNSBL 15.29% 0%
CBLCN PLUS DNSBL 0% 0%
SPAMHAUS XBL DNSBL 19.33% 0%
SPAMRATS ALL DNSBL 56.59% 0%
GBUDB.COM TRUNCATE DNSBL 37.87% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 12.04% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0.09% 0%
SPAMRATS NOPTR DNSBL 9.67% 0%
SPAMCOP DNSBL 46.92% 0%
SPAMRATS DYNA DNSBL 11.34% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 29.88% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAMRATS SPAM DNSBL 36.2% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 7.47% 0%
SPAM EATING MONKEY - URI BLACK URIBL 2.11% 0%
UCEPROTECT 2 DNSBL 56.94% 0%
WPBL DNSBL 0% 0%
COMPOSITE BLOCKING LIST DNSBL 19.33% 0%

View the data processing guide to learn more.