NovaSense Blacklist RBL

NovaSense provides a free DNSBL (RBL) [learn more] for blocking threats, abusers, botnets and malware hosts. The RBL reports on the last 48 hours of IP addresses tracked by the NovaSense light list. For paid services please contact us.

Using the RBL

You may use the RBL with the DNS name rbl.novasense-threats.com. It responds to both A record queries and TXT record queries, as shown below:

nslookup -type=a 82.58.71.180.rbl.novasense-threats.com
Server:         9.9.9.9
Address:        9.9.9.9#53

Non-authoritative answer:
Name:   82.58.71.180.rbl.novasense-threats.com
Address: 127.0.0.3
nslookup -type=txt 82.58.71.180.rbl.novasense-threats.com
Server:         9.9.9.9
Address:        9.9.9.9#53

Non-authoritative answer:
82.58.71.180.rbl.novasense-threats.com  text = "IP address 180.71.58.82 is listed as THREAT"

RBL Response Types

Response Category TXT Description
127.0.0.3 threats IP address X is listed as THREAT
127.0.0.4 abusers IP address X is listed as ABUSER
127.0.0.5 malware IP address X is listed as MALWARE
127.0.0.6 botnets IP address X is listed as BOTNET

RBL Limitations

The RBL includes the free NovaSense lists only. You cannot filter by score, and received slightly delayed results versus the live NovaSense databases.