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 2026-10-19 till 2026-10-25

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

Name Type Accuracy Inaccuracy
COMPOSITE BLOCKING LIST DNSBL 30.95% 0%
SPAM EATING MONKEY - BLACK DNSBL 10.18% 0%
JIPPG DNSBL 5.67% 0%
SURBL COMBINED URIBL 38.67% 0%
SPAM EATING MONKEY - URI FRESH 10 URIBL 5.01% 0%
SPAMRATS SPAM DNSBL 15.11% 0%
IMP SPAMLIST DNSBL 0% 0%
SPAMHAUS PBL DNSBL 29.64% 0%
DNSWL HIGH DNSWL 0% 0%
MAILSPIKE BL DNSBL 35.22% 0%
DRONEBL DNSBL 9.03% 0%
SPAMRATS ALL DNSBL 48.52% 0%
SPAM EATING MONKEY - URI FRESH URIBL 4.68% 0%
SPAMHAUS XBL DNSBL 30.95% 0%
DNSWL MEDIUM DNSWL 77.97% 0%
SPAMHAUS ZEN DNSBL 50.9% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
GBUDB.COM TRUNCATE DNSBL 51.81% 0%
SURBL ABUSE URIBL 34.48% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 18.31% 0%
SPAMRATS NOPTR DNSBL 16.75% 0%
SPAMRATS DYNA DNSBL 19.79% 0%
PSBL SURRIEL DNSBL 5.17% 0%
SPAMCOP DNSBL 25.94% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SPAMHAUS DBL URIBL 33.83% 0.02%
UCEPROTECT 2 DNSBL 57.8% 0.02%
UCEPROTECT 1 DNSBL 34.32% 0.02%
SPAM EATING MONKEY - URI FRESH 15 URIBL 6.24% 0.04%
UCEPROTECT 3 DNSBL 41.54% 0.05%
JMF-BLACK DNSBL 24.96% 0.07%
SPAM EATING MONKEY - URI RED URIBL 17.41% 0.07%
SPAM EATING MONKEY - URI BLACK URIBL 16.58% 0.07%
DNSWL LOW DNSWL 0.34% 0.08%
URIBL BLACKLIST URIBL 33.17% 0.14%
JMF-WHITE DNSWL 2.23% 0.25%
SPAMHAUS SBL URIBL 0.08% 0.64%
MAILSPIKE WL DNSWL 3.49% 0.74%
DNSWL NONE DNSWL 0.51% 2.38%
DCC CHECK 69.46% 23.18%

View the data processing guide to learn more.