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.