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

View the data processing guide to learn more.