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

2024-06-10

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

Blacklists performance from 2025-02-10 till 2025-02-16

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

Name Type Accuracy Inaccuracy
DCC CHECK 77.31% 3.13%
DNSWL MEDIUM DNSWL 71.73% 0%
UCEPROTECT 2 DNSBL 69.46% 0.05%
GBUDB.COM TRUNCATE DNSBL 64.11% 0%
SPAMRATS ALL DNSBL 61.62% 0%
SPAMHAUS ZEN DNSBL 56.83% 0%
SURBL COMBINED URIBL 54.61% 0.03%
URIBL BLACKLIST URIBL 51.57% 0.33%
SPAMCOP DNSBL 50.65% 0%
SURBL ABUSE URIBL 50.28% 0.03%
SPAMHAUS PBL DNSBL 49.54% 0%
JMF-BLACK DNSBL 47.51% 0.03%
UCEPROTECT 1 DNSBL 46.49% 0%
MAILSPIKE BL DNSBL 42.07% 0.05%
PSBL SURRIEL DNSBL 37.27% 0%
SPAMRATS NOPTR DNSBL 34.96% 0%
COMPOSITE BLOCKING LIST DNSBL 34.69% 0%
SPAMHAUS XBL DNSBL 34.69% 0%
SURBL PHISHING URIBL 33.58% 0%
JIPPG DNSBL 32.38% 0%
SPAMRATS SPAM DNSBL 31.37% 0%
UCEPROTECT 3 DNSBL 24.54% 69.45%
SPAMHAUS DBL URIBL 11.72% 0.08%
SPAM EATING MONKEY - BLACK DNSBL 10.79% 0%
SPAMRATS DYNA DNSBL 9.32% 0%
SPAM EATING MONKEY - URI RED URIBL 6.64% 0%
SPAM EATING MONKEY - URI BLACK URIBL 6.37% 0%
DRONEBL DNSBL 6.37% 0.03%
MAILSPIKE WL DNSWL 2.47% 1.11%
SPAM EATING MONKEY - URI FRESH 15 URIBL 1.38% 0.05%
SPAM EATING MONKEY - URI FRESH 10 URIBL 1.2% 0.05%
DNSWL NONE DNSWL 1.01% 2.49%
SPAM EATING MONKEY - URI FRESH URIBL 1.01% 0.05%
DNSWL HIGH DNSWL 0.57% 0%
SPAMHAUS SBL URIBL 0.46% 0.11%
JMF-WHITE DNSWL 0.33% 0%
DNSWL LOW DNSWL 0.05% 0.28%
IX HASH CHECK 0% 0%
CBLCN PLUS DNSBL 0% 0%
UNSUBSCRIBE BLACKLIST DNSBL 0% 0%
IMP SPAMLIST DNSBL 0% 0%
WPBL DNSBL 0% 0%
SWINOG URIBL URIBL 0% 0%
SURBL MALWARE URIBL 0% 0%
SWINOG DNSRBL DNSBL 0% 0%
SURBL CRACKED SITES URIBL 0% 0%
NIX SPAM DNSBL 0% 0%

View the data processing guide to learn more.