Welcome on DNSKnife.com

Providing tools to check the health of domain names

Test a domain name

This can take a few seconds


This is a partial example on dnsknife.com:

Category Test name Status Description
Parent TLD server found success Good. We found a TLD server (parent server) for your domain, this means that your domain extension is valid. d.gtld-servers.net
Nameservers are listed success Good. We could find some nameservers (NS records) for your domain on the parent server. This is a must if you want to be found as anyone that does not know your DNS servers will first ask the parent nameservers.
  • dns1.axianet.ch
  • dns2.axianet.ch
TLD has matching A records success Good. All of your NS records can be matched to an IP address (A record). The servers have the following IPs:
  • 213.221.153.190
  • 213.221.142.39
Responding DNS servers success Good. All nameservers listed at the parent server and which have A records responded to an UDP request on port 53.
Authoritative servers success Good. All responding nameservers are authoritative for your domain.
NS Matching NS records success Good. We asked every authoritative server for the NS records and they all match.