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 2025-07-14 till 2025-07-20

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

Name Type Accuracy Inaccuracy
DCC CHECK 79.7% 4.68%
DNSWL MEDIUM DNSWL 70.77% 0%
UCEPROTECT 2 DNSBL 67% 0.03%
SPAMRATS ALL DNSBL 59.69% 0%
SPAMHAUS ZEN DNSBL 58.27% 0%
MAILSPIKE BL DNSBL 54.15% 0%
SPAMCOP DNSBL 53.94% 0%
SURBL COMBINED URIBL 51.1% 0%
SPAMRATS SPAM DNSBL 47.05% 0%
SURBL ABUSE URIBL 44.36% 0%
SPAMHAUS DBL URIBL 43.08% 0.03%
UCEPROTECT 3 DNSBL 42.09% 0.37%
JMF-BLACK DNSBL 40.31% 0.03%
URIBL BLACKLIST URIBL 37.12% 0.03%
SPAMHAUS PBL DNSBL 34.78% 0%
UCEPROTECT 1 DNSBL 34.35% 0.03%
GBUDB.COM TRUNCATE DNSBL 33.22% 0%
PSBL SURRIEL DNSBL 23.85% 0%
SPAMHAUS XBL DNSBL 17.39% 0%
COMPOSITE BLOCKING LIST DNSBL 17.39% 0%
SPAM EATING MONKEY - BLACK DNSBL 11% 0%
SPAMRATS NOPTR DNSBL 9.87% 0%
SURBL PHISHING URIBL 9.79% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 6.74% 0%
SPAMRATS DYNA DNSBL 6.46% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 6.17% 0%
SPAM EATING MONKEY - URI RED URIBL 5.32% 0%
SPAM EATING MONKEY - URI FRESH URIBL 4.9% 0%
JIPPG DNSBL 3.83% 0%
DRONEBL DNSBL 3.19% 0.08%
SPAM EATING MONKEY - URI BLACK URIBL 2.84% 0%
MAILSPIKE WL DNSWL 2.34% 1.42%
DNSWL NONE DNSWL 0.96% 2.2%
JMF-WHITE DNSWL 0.48% 0.21%
SURBL CRACKED SITES URIBL 0.28% 0%
DNSWL HIGH DNSWL 0.06% 0%
DNSWL LOW DNSWL 0.03% 0%
SPAMHAUS SBL URIBL 0% 0%
CBLCN PLUS DNSBL 0% 0%
SURBL MALWARE URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
WPBL DNSBL 0% 0%

View the data processing guide to learn more.