fitnessfirst.de

Checked 21 October 2026, 22:30 UTC · via 8.8.8.8
!Passed with warnings
25 passed 1 warning 0 failed 3 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

pass

helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com
NS in the zone
helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com
NameserverAddressesNetwork (AS)Glue
helium.ns.hetzner.de193.47.99.5 2001:67c:192c::add:5AS12337 NORIS-NETWORK - noris network AG, DE AS12337 NORIS-NETWORK - noris network AG, DE-
hydrogen.ns.hetzner.com213.133.100.98 2a01:4f8:0:1::add:1098AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
oxygen.ns.hetzner.com88.198.229.192 2a01:4f8:0:1::add:2992AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com.
  • ✓ 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 3 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12337 (NORIS-NETWORK - noris network AG, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
helium.ns.hetzner.de 193.47.99.5NOERROR, 5 ms, authoritativenoyes / yesrefused-
helium.ns.hetzner.de 2001:67c:192c::add:5NOERROR, 6 ms, authoritativenoyes / yesrefused-
hydrogen.ns.hetzner.com 213.133.100.98NOERROR, 1 ms, authoritativenoyes / yesrefused-
hydrogen.ns.hetzner.com 2a01:4f8:0:1::add:1098NOERROR, 0 ms, authoritativenoyes / yesrefused-
oxygen.ns.hetzner.com 88.198.229.192NOERROR, 1 ms, authoritativenoyes / yesrefused-
oxygen.ns.hetzner.com 2a01:4f8:0:1::add:2992NOERROR, 0 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ 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.
  • ✓ 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 2026080700 · primary hydrogen.ns.hetzner.com

Found

Primary (MNAME)
hydrogen.ns.hetzner.com
Contact (RNAME)
hostmaster.de.uu.net
Serial
2026080700
Refresh / retry
28800 s / 7200 s
Expire
2678400 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
helium.ns.hetzner.de (193.47.99.5)2026080700
helium.ns.hetzner.de (2001:67c:192c::add:5)2026080700
hydrogen.ns.hetzner.com (213.133.100.98)2026080700
hydrogen.ns.hetzner.com (2a01:4f8:0:1::add:1098)2026080700
oxygen.ns.hetzner.com (88.198.229.192)2026080700
oxygen.ns.hetzner.com (2a01:4f8:0:1::add:2992)2026080700

Checks

  • ✓ Serial 2026080700 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 31d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver hydrogen.ns.hetzner.com is one of the listed nameservers.
  • ✓ Contact hostmaster@de.uu.net #25
    The SOA RNAME hostmaster.de.uu.net means hostmaster@de.uu.net.
  • ✓ Date-based serial #26
    The serial 2026080700 follows the YYYYMMDDnn convention (2026-08-07).

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

14 records at the apex

Found

Read from
193.47.99.5:53
TypeValueTTL
SOAhydrogen.ns.hetzner.com. hostmaster.de.uu.net. 2026080700 28800 7200 2678400 18003600
NShelium.ns.hetzner.de.3600
NShydrogen.ns.hetzner.com.3600
NSoxygen.ns.hetzner.com.3600
A35.234.115.2453600
MX10 mail.fitnessfirst.de.3600
TXT"MS=ms14150204"3600
TXT"MS=ms16976927"3600
TXT"MS=ms86831356"3600
TXT"apple-domain-verification=dRuCdN1t7n6La6aw"3600
TXT"atlassian-domain-verification=9PcMSjQkEd1JOsJZ5SOwmkX2zI1OX3gP8Cao1tIbQ2Q7WC0xXcDAK5d4ecl2rT87"3600
TXT"google-site-verification=_LT2J1zAZBiO9b1mpRfFxtk9psEQzY2I5LJzr4ssuIw"3600
TXT"openai-domain-verification=dv-Ysk0XLljmrL8rbEZdR8dl3MH"3600
TXT"v=spf1 ip4:195.137.170.156 ip4:81.20.67.30 ip4:81.20.67.13 ip4:195.50.148.66 ip4:88.79.150.178 ip4:2.207.245.198 ip4:2.207.245.199 include:mail.zendesk.com include:spf.protection.outlook.com include:one.zoho.eu -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 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