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 2026-08-24 till 2026-08-30

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 38.65% 0%
DCC CHECK 72.62% 21.38%
DNSWL HIGH DNSWL 0.03% 0%
DNSWL LOW DNSWL 0.35% 0%
DNSWL MEDIUM DNSWL 2.28% 0%
DNSWL NONE DNSWL 0.66% 3.06%
DRONEBL DNSBL 11.35% 0%
GBUDB.COM TRUNCATE DNSBL 43.4% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 10.39% 0%
JMF-BLACK DNSBL 31.64% 0.07%
JMF-WHITE DNSWL 1.45% 0.08%
MAILSPIKE BL DNSBL 26.81% 0%
MAILSPIKE WL DNSWL 3.08% 0.72%
PSBL SURRIEL DNSBL 8.29% 0%
SPAM EATING MONKEY - BLACK DNSBL 5.8% 0%
SPAM EATING MONKEY - URI BLACK URIBL 21.1% 0.03%
SPAM EATING MONKEY - URI FRESH URIBL 0.64% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.7% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.86% 0%
SPAM EATING MONKEY - URI RED URIBL 21.58% 0.03%
SPAMCOP DNSBL 32.85% 0%
SPAMHAUS DBL URIBL 22.87% 0.1%
SPAMHAUS PBL DNSBL 24.24% 0%
SPAMHAUS SBL URIBL 0.56% 2.66%
SPAMHAUS XBL DNSBL 38.65% 0%
SPAMHAUS ZEN DNSBL 53.14% 0%
SPAMRATS ALL DNSBL 43.32% 0%
SPAMRATS DYNA DNSBL 15.78% 0%
SPAMRATS NOPTR DNSBL 15.62% 0%
SPAMRATS SPAM DNSBL 14.98% 0%
SURBL ABUSE URIBL 34.46% 0.07%
SURBL COMBINED URIBL 37.36% 0.07%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 24.88% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 35.1% 0%
UCEPROTECT 2 DNSBL 47.02% 0%
UCEPROTECT 3 DNSBL 29.39% 0.03%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 26.41% 0.07%

View the data processing guide to learn more.