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 2025-06-30 till 2025-07-06

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

Name Type Accuracy Inaccuracy
DCC CHECK 81.86% 4.48%
COMPOSITE BLOCKING LIST DNSBL 21.78% 0%
SPAM EATING MONKEY - BLACK DNSBL 6.77% 0%
JMF-BLACK DNSBL 25.56% 0.12%
SPAMRATS SPAM DNSBL 43.7% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
JIPPG DNSBL 4.44% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAMHAUS ZEN DNSBL 61.54% 0%
DRONEBL DNSBL 1.31% 0%
SPAMRATS ALL DNSBL 55.5% 0%
CBLCN PLUS DNSBL 0% 0%
MAILSPIKE BL DNSBL 51.13% 0%
WPBL DNSBL 0% 0%
SPAMHAUS XBL DNSBL 21.78% 0%
SPAMHAUS PBL DNSBL 48.07% 0%
GBUDB.COM TRUNCATE DNSBL 31.17% 0%
SPAMRATS NOPTR DNSBL 7.43% 0%
SPAMRATS DYNA DNSBL 5.83% 0%
SWINOG DNSRBL DNSBL 0% 0%
UCEPROTECT 2 DNSBL 60.52% 0.06%
UCEPROTECT 1 DNSBL 19.52% 0%
PSBL SURRIEL DNSBL 32.05% 0.03%
SPAMCOP DNSBL 60.31% 0%
UCEPROTECT 3 DNSBL 32.77% 0.06%
DNSWL HIGH DNSWL 0.4% 0%
DNSWL LOW DNSWL 0.06% 0%
DNSWL MEDIUM DNSWL 78.64% 0%
JMF-WHITE DNSWL 0.32% 0.07%
MAILSPIKE WL DNSWL 1.97% 0.66%
DNSWL NONE DNSWL 0.98% 1.17%
SPAMHAUS SBL URIBL 0% 0.03%
SPAM EATING MONKEY - URI FRESH URIBL 2.69% 0%
SPAMHAUS DBL URIBL 30.88% 0.03%
SURBL CRACKED SITES URIBL 0% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.2% 0%
SWINOG URIBL URIBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 4.22% 0%
SPAM EATING MONKEY - URI BLACK URIBL 1.75% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.13% 0%
SURBL COMBINED URIBL 68.97% 0.06%
URIBL BLACKLIST URIBL 40.71% 0.06%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 13.04% 0.06%
SURBL ABUSE URIBL 60.67% 0%

View the data processing guide to learn more.