Domain report: flughafen-stuttgart.de

Registration

info

.de country-code

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.
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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

info

ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net

Nameserver	Addresses	Network (AS)	Glue
ns1.mainns.de	192.174.68.21 2001:67c:1bc::21	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	192.174.68.21 2001:67c:1bc::21
ns2.mainns.eu	176.97.158.21 2001:67c:10b8::21	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	-
ns3.mainns.net	192.174.68.20 2001:67c:1bc::20	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	-

✓ 3 nameservers #6

Delegated to ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net.
✓ 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.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 3 TLDs #12

Nameserver names use the TLDs .de, .eu, .net.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

info

6 of 6 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.mainns.de 192.174.68.21	NOERROR, 5 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns1.mainns.de 2001:67c:1bc::21	NOERROR, 5 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns2.mainns.eu 176.97.158.21	NOERROR, 13 ms, authoritative	no	yes / yes	refused	reg-wie1
ns2.mainns.eu 2001:67c:10b8::21	NOERROR, 13 ms, authoritative	no	yes / yes	refused	reg-wie1
ns3.mainns.net 192.174.68.20	NOERROR, 5 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns3.mainns.net 2001:67c:1bc::20	NOERROR, 5 ms, authoritative	no	yes / yes	refused	RcodeZero DNS

✓ All respond #14

All 6 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.mainns.de: "RcodeZero DNS"; ns2.mainns.eu: "reg-wie1"; ns3.mainns.net: "RcodeZero DNS".

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

warn

serial 1768904303 · primary ns1.mainns.de

✓ Serial 1768904303 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

negative caching TTL (minimum) 2m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 8h, retry 2h, expire 7d, negative TTL 2m.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.mainns.de is one of the listed nameservers.
✓ Contact hostmaster@resellerinterface.de #25

The SOA RNAME hostmaster.resellerinterface.de means hostmaster@resellerinterface.de.
✓ Timestamp serial #26

The serial 1768904303 is a Unix timestamp (2026-01-20 10:18 UTC).

warn

Not signed

warn

12 records at the apex

Type	Value	TTL
SOA	ns1.mainns.de. hostmaster.resellerinterface.de. 1768904303 28800 7200 604800 120	86400
NS	ns1.mainns.de.	86400
NS	ns2.mainns.eu.	86400
NS	ns3.mainns.net.	86400
A	9.223.44.214	600
MX	10 mx1.hc1510-1.eu.iphmx.com.	120
MX	100 mx2.hc1510-1.eu.iphmx.com.	120
TXT	"MS=ms89530642"	120
TXT	"0n01pbrpbtv0sjm5n8pbxbf1c7wbc0zy"	120
TXT	"_riq90985vmkh9uzlwse0r4xchec72hf"	120
TXT	"v=spf1 exists:%{i}.spf.hc1510-1.eu.iphmx.com ~all"	120
TXT	"google-site-verification=GGQCoFcgJzL7TXuQW3bKCTiwWOJw5T9u1kgYUCsCCYY"	120