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 2025-09-08 till 2025-09-14

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

Name Type Accuracy Inaccuracy
DCC CHECK 68.42% 4.32%
DNSWL NONE DNSWL 2.05% 2.63%
MAILSPIKE WL DNSWL 1.89% 1.16%
JMF-WHITE DNSWL 0.46% 0.42%
SURBL COMBINED URIBL 64.95% 0.07%
SURBL ABUSE URIBL 55.37% 0.07%
DRONEBL DNSBL 2.63% 0.07%
JMF-BLACK DNSBL 39.05% 0.02%
SPAMCOP DNSBL 49.58% 0.02%
DNSWL HIGH DNSWL 0.15% 0%
SPAMHAUS PBL DNSBL 28.42% 0%
SPAM EATING MONKEY - BLACK DNSBL 18.42% 0%
DNSWL MEDIUM DNSWL 42.81% 0%
COMPOSITE BLOCKING LIST DNSBL 20.32% 0%
JIPPG DNSBL 2.95% 0%
SPAMHAUS DBL URIBL 40.21% 0%
MAILSPIKE BL DNSBL 52.84% 0%
CBLCN PLUS DNSBL 0% 0%
SPAMRATS ALL DNSBL 43.68% 0%
SPAM EATING MONKEY - URI FRESH URIBL 5.68% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 5.89% 0%
SPAMHAUS ZEN DNSBL 48% 0%
SPAMHAUS XBL DNSBL 20.32% 0%
DNSWL LOW DNSWL 0.18% 0%
GBUDB.COM TRUNCATE DNSBL 56.21% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 31.68% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SPAMRATS NOPTR DNSBL 15.37% 0%
PSBL SURRIEL DNSBL 32% 0%
SPAMHAUS SBL URIBL 0.11% 0%
SPAMRATS DYNA DNSBL 10.63% 0%
UCEPROTECT 1 DNSBL 35.68% 0%
UCEPROTECT 2 DNSBL 58.84% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAMRATS SPAM DNSBL 18.84% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 4.63% 0%
SPAM EATING MONKEY - URI BLACK URIBL 1.05% 0%
UCEPROTECT 3 DNSBL 40.63% 0%
URIBL BLACKLIST URIBL 23.05% 0%
WPBL DNSBL 0% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 6.11% 0%

View the data processing guide to learn more.