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BuddyNS delegation lab

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Color Indication Color Indication Color Indication
  Zone.   Nameserver serving outdated data.   Nameserver from the BuddyNS backbone.
  Nameserver delegated by zone.   Server was queried and timed out.   Inconsistency between zone and registry.

Geographical distribution of the Authority servers

Location Server

Geographical locations are established via MaxMind's GeoLite technology. Some locations may be inexact.

Delegation tests for asp-direct.net

Test Result Notes
Is Zone OK The indicated domain asp-direct.net is a zone: authority and nameserver data is announced for it. These are the authority parameters for zone asp-direct.net:
Master
ns3.asp-direct.net.
Administrator
root@ns3.asp-direct.net
Version serial
2019080601
Slave refresh
3600
Slave retry
900
Slave expiry
86400
Negative cache
600
Zone/Registry consistent OK The list of nameservers declared by the last delegating server and the authoritative server match. Configuration looks healthy.
Authoritative servers consistent OK Every nameserver authoritative for asp-direct.net correctly serves the same zone version, so client queries will get the same response regardless of the server they reach. Here's the summary:
  • ns3.asp-direct.net → #2019080601
  • ns4.asp-direct.net → #2019080601
Number of servers WARNING asp-direct.net delegates its DNS to 2 servers only. This is the bare minimum required in DNS, and exposes to significant reliability issues. RFC 2182 advocates a minimum of 3 nameservers. BuddyNS recommends 4 or 5, and most likely this added reliability will come at no cost. Check out BuddyNS.
Unresponsive nameservers OK All queried nameservers responded; no dead/misconfigured/unavailable server was found in the chosen resolution path.
Recursion OK None of the DNS servers listed as authoritative for asp-direct.net serves recursive queries to the public.
Truncation OK None of the DNS servers listed as authoritative for asp-direct.net gives a truncated response for NS requests. Clients can successfully perform NS queries over the low-latency UDP protocol, without falling back to much slower TCP.
IPv6 WARNING None of the servers serving asp-direct.net's DNS is reachable via IPv6. IPv6-enabled clients asp-direct.net will need to revert to compatibility IPv4 protocol for every look up of services of asp-direct.net. A growing number a IPv6-only clients will be unable to perform such look ups.

IPv6 score: 0%
DNSCurve No DNScurve is not supported for this zone. To leverage DNSCurve from BuddyNS, delegate asp-direct.net using secure server names from BuddyNS.

Delegation trace for asp-direct.net

Notes

The delegation trace below is one of the possible traversals of the delegation tree. Note that:

  • For zones with correct delegation, the same data is obtained regardless of which resolution path is traversed.
  • BuddyNS excludes its own servers from traversals when foreign servers are available.
  • Refresh this page to test with a different traversal path.

Here's the steps BuddyNS took to collect the DNS delegation chain for asp-direct.net: