burg-halle.de

.de country-code

Found

TLD

.de (country-code)

ICANN policies apply

no

Checks

• i

  .de is a country-code TLD (ccTLD)

  Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.

  #1
• ✓ TLD delegated and signed #2

  .de is delegated in the root zone and DNSSEC-signed.
• i

  Registration data not available

  No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.

  #3

ns1.eastlink.de, ns2.eastlink.de, ns3.eastlink.de

Found

Parent zone

de

Delegation from

a.nic.de (194.0.0.53)

NS at the parent

ns1.eastlink.de, ns2.eastlink.de, ns3.eastlink.de

NS in the zone

ns1.eastlink.de, ns2.eastlink.de, ns3.eastlink.de

Checks

• ✓ 3 nameservers #6

  Delegated to ns1.eastlink.de, ns2.eastlink.de, ns3.eastlink.de.
• ✓ Parent and zone agree #7

  The parent delegation and the zone's NS records list the same nameservers.
• ✓ No glue needed #8

  All nameservers are outside the zone, so no glue records are needed.
• ✓ All names resolve #9

  Every nameserver name has an address and is not an alias.
• ✓ Nameservers in different networks #10

  The nameservers are spread over 2 IPv4 /24s and 2 IPv6 /48s.
• ✓ 2 autonomous systems #11

  The nameservers are spread over: AS16097 (HLKOMM - HL komm Telekommunikations GmbH, DE): 4 addresses; AS25081 (HDiT-AS - Heidelberg IT Management GmbH & Co.KG, DE): 2 addresses.
• i

  All nameserver names under .de

  All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

  #12
• ✓ All reachable over IPv6 #13

  Every nameserver has an IPv6 address.

serial 2026091801 · primary burgcom.burg-halle.de

Found

Primary (MNAME)

burgcom.burg-halle.de

Contact (RNAME)

schwenke.burg-halle.de

Serial

2026091801

Refresh / retry

21600 s / 900 s

Expire

1209600 s

Negative TTL

3600 s

Serial per nameserver

Checks

• ✓ Serial 2026091801 everywhere #22

  All nameservers serve the same version of the zone.
• ✓ Timers within recommendations #23

  SOA refresh 6h, retry 15m, expire 14d, negative TTL 1h.
• i

  Hidden master

  The primary nameserver burgcom.burg-halle.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.

  #24
• ✓ Contact schwenke@burg-halle.de #25

  The SOA RNAME schwenke.burg-halle.de means schwenke@burg-halle.de.
• ✓ Date-based serial #26

  The serial 2026091801 follows the YYYYMMDDnn convention (2026-09-18).