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

2025-02-27

We thank the Nixspam team for their service and have removed the defunct lists.
» More news

Blacklists performance from 2025-04-14 till 2025-04-20

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

Name Type Accuracy Inaccuracy
DNSWL NONE DNSWL 0.99% 4.82%
DCC CHECK 67.02% 4.38%
MAILSPIKE WL DNSWL 1.44% 1.66%
DNSWL MEDIUM DNSWL 75.96% 0.6%
JMF-WHITE DNSWL 0.4% 0.3%
SPAMHAUS DBL URIBL 41.87% 0.17%
UCEPROTECT 2 DNSBL 42.17% 0.14%
SPAM EATING MONKEY - URI FRESH URIBL 4.52% 0.08%
SPAM EATING MONKEY - URI FRESH 15 URIBL 6.17% 0.08%
SPAM EATING MONKEY - URI FRESH 10 URIBL 5.12% 0.08%
UCEPROTECT 3 DNSBL 34.64% 0.06%
URIBL BLACKLIST URIBL 28.61% 0.06%
SPAM EATING MONKEY - URI RED URIBL 6.02% 0.03%
SPAM EATING MONKEY - URI BLACK URIBL 2.41% 0.03%
PSBL SURRIEL DNSBL 27.11% 0.03%
SURBL ABUSE URIBL 44.58% 0.03%
JMF-BLACK DNSBL 32.68% 0.03%
SURBL COMBINED URIBL 52.86% 0.03%
DNSWL HIGH DNSWL 0.45% 0%
SPAMHAUS PBL DNSBL 28.01% 0%
SPAMHAUS XBL DNSBL 25.15% 0%
DRONEBL DNSBL 1.2% 0%
SPAMRATS ALL DNSBL 48.34% 0%
CBLCN PLUS DNSBL 0% 0%
MAILSPIKE BL DNSBL 30.27% 0%
SPAMHAUS ZEN DNSBL 40.21% 0%
JIPPG DNSBL 3.16% 0%
DNSWL LOW DNSWL 0.11% 0%
GBUDB.COM TRUNCATE DNSBL 38.25% 0%
SURBL CRACKED SITES URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SURBL PHISHING URIBL 17.32% 0%
SPAMRATS NOPTR DNSBL 12.5% 0%
SPAMRATS DYNA DNSBL 11.9% 0%
SPAMCOP DNSBL 27.86% 0%
SPAMHAUS SBL URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
COMPOSITE BLOCKING LIST DNSBL 25.15% 0%
SPAMRATS SPAM DNSBL 25% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
UCEPROTECT 1 DNSBL 27.71% 0%
WPBL DNSBL 0% 0%
SPAM EATING MONKEY - BLACK DNSBL 12.95% 0%

View the data processing guide to learn more.