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 2026-02-09 till 2026-02-15

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

Name Type Accuracy Inaccuracy
DCC CHECK 77.59% 3.14%
SPAMHAUS ZEN DNSBL 58.32% 0%
UCEPROTECT 2 DNSBL 50.59% 0%
MAILSPIKE BL DNSBL 50.07% 0%
SURBL COMBINED URIBL 49.41% 0%
GBUDB.COM TRUNCATE DNSBL 49.41% 0%
SPAMRATS ALL DNSBL 48.49% 0%
SPAMCOP DNSBL 45.74% 0%
SURBL ABUSE URIBL 44.69% 0%
UCEPROTECT 3 DNSBL 43.91% 0.07%
SPAMHAUS PBL DNSBL 41.15% 0%
SPAMHAUS XBL DNSBL 36.7% 0%
COMPOSITE BLOCKING LIST DNSBL 36.7% 0%
JMF-BLACK DNSBL 36.04% 0.04%
URIBL BLACKLIST URIBL 31.32% 0%
SPAMHAUS DBL URIBL 26.21% 0%
PSBL SURRIEL DNSBL 26.08% 0%
SPAMRATS NOPTR DNSBL 25.56% 0%
SURBL PHISHING URIBL 21.49% 0%
UCEPROTECT 1 DNSBL 16.91% 0%
SPAMRATS SPAM DNSBL 16.78% 0%
DRONEBL DNSBL 11.53% 0.04%
SPAM EATING MONKEY - BLACK DNSBL 11.4% 0%
SPAMRATS DYNA DNSBL 7.73% 0%
JIPPG DNSBL 5.9% 0%
SPAM EATING MONKEY - URI RED URIBL 5.37% 0%
SPAM EATING MONKEY - URI BLACK URIBL 4.59% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 3.41% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 3.41% 0%
MAILSPIKE WL DNSWL 2.66% 2.62%
DNSWL MEDIUM DNSWL 1.51% 0%
SPAM EATING MONKEY - URI FRESH URIBL 1.44% 0%
DNSWL NONE DNSWL 1.26% 4.72%
DNSWL LOW DNSWL 0.7% 0%
JMF-WHITE DNSWL 0.48% 0%
SPAMHAUS SBL URIBL 0.26% 0%
DNSWL HIGH DNSWL 0.18% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%

View the data processing guide to learn more.