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 2026-08-03 till 2026-08-09

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 52.81% 0%
DCC CHECK 87.73% 26.65%
DNSWL HIGH DNSWL 0.04% 0%
DNSWL LOW DNSWL 0.34% 0%
DNSWL MEDIUM DNSWL 2.63% 0%
DNSWL NONE DNSWL 0.48% 3.8%
DRONEBL DNSBL 15.13% 0%
GBUDB.COM TRUNCATE DNSBL 49.96% 0%
IMP SPAMLIST DNSBL 0% 0%
JIPPG DNSBL 11.24% 0%
JMF-BLACK DNSBL 31.46% 0.02%
JMF-WHITE DNSWL 1.7% 0%
MAILSPIKE BL DNSBL 38.03% 0%
MAILSPIKE WL DNSWL 3.03% 0.86%
PSBL SURRIEL DNSBL 10.63% 0%
SPAM EATING MONKEY - BLACK DNSBL 8.21% 0%
SPAM EATING MONKEY - URI BLACK URIBL 43.99% 0.04%
SPAM EATING MONKEY - URI FRESH URIBL 0.78% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 0.78% 0%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.64% 0%
SPAM EATING MONKEY - URI RED URIBL 44.43% 0.04%
SPAMCOP DNSBL 37.77% 0%
SPAMHAUS DBL URIBL 17.89% 0.04%
SPAMHAUS PBL DNSBL 19.62% 0%
SPAMHAUS SBL URIBL 0.17% 2.19%
SPAMHAUS XBL DNSBL 52.81% 0%
SPAMHAUS ZEN DNSBL 66.64% 0%
SPAMRATS ALL DNSBL 52.64% 0%
SPAMRATS DYNA DNSBL 18.06% 0%
SPAMRATS NOPTR DNSBL 17.72% 0%
SPAMRATS SPAM DNSBL 20.05% 0%
SURBL ABUSE URIBL 19.27% 0.02%
SURBL COMBINED URIBL 23.34% 0.02%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 5.19% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
UCEPROTECT 1 DNSBL 37.34% 0%
UCEPROTECT 2 DNSBL 44.77% 0.04%
UCEPROTECT 3 DNSBL 23.94% 0.04%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
URIBL BLACKLIST URIBL 13.92% 0.86%

View the data processing guide to learn more.