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

2025-10-21

Removed the no longer operational WPBL and CBLCN lists
» More news

Blacklists performance from 2025-10-13 till 2025-10-19

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

Name Type Accuracy Inaccuracy
DCC CHECK 77.33% 5.03%
DNSWL NONE DNSWL 1.54% 1.91%
MAILSPIKE WL DNSWL 3.86% 1.48%
URIBL BLACKLIST URIBL 24.89% 0.11%
SPAMCOP DNSBL 52.12% 0.05%
SPAMHAUS DBL URIBL 31.36% 0.03%
PSBL SURRIEL DNSBL 31.67% 0.03%
DRONEBL DNSBL 15.68% 0.03%
SPAMHAUS PBL DNSBL 28.5% 0%
JIPPG DNSBL 21.93% 0%
DNSWL HIGH DNSWL 0.13% 0%
COMPOSITE BLOCKING LIST DNSBL 40.78% 0%
SURBL COMBINED URIBL 47.03% 0%
DNSWL MEDIUM DNSWL 42.64% 0%
SPAM EATING MONKEY - BLACK DNSBL 16.1% 0%
JMF-WHITE DNSWL 1.07% 0%
MAILSPIKE BL DNSBL 58.58% 0%
SPAMRATS ALL DNSBL 51.17% 0%
SPAM EATING MONKEY - URI FRESH URIBL 2.33% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 2.86% 0%
SPAMHAUS ZEN DNSBL 54.45% 0%
SPAMHAUS XBL DNSBL 40.78% 0%
DNSWL LOW DNSWL 0.08% 0%
GBUDB.COM TRUNCATE DNSBL 57.52% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 22.14% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL ABUSE URIBL 37.82% 0%
SPAMHAUS SBL URIBL 0.64% 0%
SPAMRATS DYNA DNSBL 9.75% 0%
SPAMRATS NOPTR DNSBL 21.61% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 48.52% 0%
SPAMRATS SPAM DNSBL 22.03% 0%
IMP SPAMLIST DNSBL 0% 0%
JMF-BLACK DNSBL 43.01% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
SPAM EATING MONKEY - URI RED URIBL 4.87% 0%
UCEPROTECT 2 DNSBL 58.79% 0%
UCEPROTECT 3 DNSBL 43.11% 0%
SPAM EATING MONKEY - URI BLACK URIBL 3.07% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 2.86% 0%

View the data processing guide to learn more.