Features
Passive DNS replication
As a service to CERTs and incident response teams, BFK uses passive DNS replication to collect public DNS data. Compared to the ordinary domain name system, this database adds further search capabilities.
This web interface must not be used for automated queries. For details about bulk queries please contact:
The server returned the following data:
The server state is: 401 record limit exceeded
Instructions
Please enter your query in the input field above. You can enter IP addresses and domain names. A short explanation of the output
follows.
- IP address:
Known A RRs for this IP address are displayed, and CNAME RRs pointing to those records are included as well.
Furthermore, DNSBL entries for the IP address are displayed. - Domain Name:
Resource records containing the domain name are shown.
There is a per-query limit of 500 records. New records are delayed by at least 20 Minutes.
Privacy Concerns
The data presented here has been collected from the public Domain Name System using passive DNS replication. Technical measures ensure anonymization of data sources.