gfds.de

Checked 21 October 2026, 22:40 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 5 info

Registration

info

.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

Delegation

info

ns1.1fire-dns.de, ns2.1fire-dns.de, ns3.1fire-dns.de, ns4.1fire-dns.de, ns5.1fire-dns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.1fire-dns.de, ns2.1fire-dns.de, ns3.1fire-dns.de, ns4.1fire-dns.de, ns5.1fire-dns.de
NS in the zone
ns1.1fire-dns.de, ns2.1fire-dns.de, ns3.1fire-dns.de, ns4.1fire-dns.de, ns5.1fire-dns.de
NameserverAddressesNetwork (AS)Glue
ns1.1fire-dns.de82.47.46.53 2a06:de01:1f00:82:47:46:53:0AS213426 ONEFIREHOSTING - Danny Lotz, DE AS213426 ONEFIREHOSTING - Danny Lotz, DE82.47.46.53 2a06:de01:1f00:82:47:46:53:0
ns2.1fire-dns.de82.153.225.53 2a06:de00:1f00:82:153:225:53:0AS8851 EDGE - GCI Network Solutions Limited, GB AS213426 ONEFIREHOSTING - Danny Lotz, DE82.153.225.53 2a06:de00:1f00:82:153:225:53:0
ns3.1fire-dns.de62.113.211.53 2a00:f48:1003:62:113:211:53:0AS47447 TTM - 23M GmbH, DE AS47447 TTM - 23M GmbH, DE62.113.211.53 2a00:f48:1003:62:113:211:53:0
ns4.1fire-dns.de85.215.230.211 2a01:239:225:db00::53AS8560 IONOS-AS - IONOS SE, DE AS6724 STRATO - Strato GmbH, DE85.215.230.211 2a01:239:225:db00::53
ns5.1fire-dns.de217.160.99.79AS8560 IONOS-AS - IONOS SE, DE217.160.99.79

Checks

  • ✓ 5 nameservers #6
    Delegated to ns1.1fire-dns.de, ns2.1fire-dns.de, ns3.1fire-dns.de, ns4.1fire-dns.de, ns5.1fire-dns.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 5 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 5 autonomous systems #11
    The nameservers are spread over: AS213426 (ONEFIREHOSTING - Danny Lotz, DE): 3 addresses; AS47447 (TTM - 23M GmbH, DE): 2 addresses; AS6724 (STRATO - Strato GmbH, DE): 1 address; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses; AS8851 (EDGE - GCI Network Solutions Limited, GB): 1 address.
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns5.1fire-dns.de.
    #13

Nameservers

pass

9 of 9 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.1fire-dns.de 82.47.46.53NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns1.1fire-dns.de 2a06:de01:1f00:82:47:46:53:0NOERROR, 1 ms, authoritativenoyes / yesrefused-
ns2.1fire-dns.de 82.153.225.53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.1fire-dns.de 2a06:de00:1f00:82:153:225:53:0NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3.1fire-dns.de 62.113.211.53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3.1fire-dns.de 2a00:f48:1003:62:113:211:53:0NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4.1fire-dns.de 85.215.230.211NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns4.1fire-dns.de 2a01:239:225:db00::53NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns5.1fire-dns.de 217.160.99.79NOERROR, 15 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 9 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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.

SOA

pass

serial 2026010906 · primary ns1.1fire-dns.de

Found

Primary (MNAME)
ns1.1fire-dns.de
Contact (RNAME)
hostmaster.ns1.1fire-dns.de
Serial
2026010906
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.1fire-dns.de (82.47.46.53)2026010906
ns1.1fire-dns.de (2a06:de01:1f00:82:47:46:53:0)2026010906
ns2.1fire-dns.de (82.153.225.53)2026010906
ns2.1fire-dns.de (2a06:de00:1f00:82:153:225:53:0)2026010906
ns3.1fire-dns.de (62.113.211.53)2026010906
ns3.1fire-dns.de (2a00:f48:1003:62:113:211:53:0)2026010906
ns4.1fire-dns.de (85.215.230.211)2026010906
ns4.1fire-dns.de (2a01:239:225:db00::53)2026010906
ns5.1fire-dns.de (217.160.99.79)2026010906

Checks

  • ✓ Serial 2026010906 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.1fire-dns.de is one of the listed nameservers.
  • ✓ Contact hostmaster@ns1.1fire-dns.de #25
    The SOA RNAME hostmaster.ns1.1fire-dns.de means hostmaster@ns1.1fire-dns.de.
  • ✓ Date-based serial #26
    The serial 2026010906 follows the YYYYMMDDnn convention (2026-01-09).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

11 records at the apex

Found

Read from
82.47.46.53:53
TypeValueTTL
SOAns1.1fire-dns.de. hostmaster.ns1.1fire-dns.de. 2026010906 14400 3600 1209600 36003600
NSns4.1fire-dns.de.3600
NSns1.1fire-dns.de.3600
NSns2.1fire-dns.de.3600
NSns5.1fire-dns.de.3600
NSns3.1fire-dns.de.3600
A82.153.225.723600
AAAA2a06:de00:1f01:1000::3600
MX10 gfds-de.mail.protection.outlook.com.3600
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.createsend.com -all"3600
TXT"MS=ms48922055"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35