ariva.de

Checked 21 October 2026, 21:30 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 0 failed 6 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

warn

ens1.ariva.de, ens2.ariva.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ens1.ariva.de, ens2.ariva.de
NS in the zone
ens1.ariva.de, ens2.ariva.de
NameserverAddressesNetwork (AS)Glue
ens1.ariva.de82.97.136.53AS13101 TNG-AS - TNG Stadtnetz GmbH, DE82.97.136.53
ens2.ariva.de82.97.160.53AS13101 TNG-AS - TNG Stadtnetz GmbH, DE82.97.160.53

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ens1.ariva.de, ens2.ariva.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ens1.ariva.de, ens2.ariva.de.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13101 (TNG-AS - TNG Stadtnetz GmbH, DE): 2 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ens1.ariva.de 82.97.136.53NOERROR, 12 ms, authoritativenoyes / yesrefusedBind Server
ens2.ariva.de 82.97.160.53NOERROR, 11 ms, authoritativenoyes / yesrefusedBind Server

Checks

  • ✓ All respond #14
    All 2 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ens1.ariva.de: "Bind Server"; ens2.ariva.de: "Bind Server".
    #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.

SOA

pass

serial 2026101901 · primary ens1.ariva.de

Found

Primary (MNAME)
ens1.ariva.de
Contact (RNAME)
hostmaster.ariva.de
Serial
2026101901
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ens1.ariva.de (82.97.136.53)2026101901
ens2.ariva.de (82.97.160.53)2026101901

Checks

  • ✓ Serial 2026101901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ens1.ariva.de is one of the listed nameservers.
  • ✓ Contact hostmaster@ariva.de #25
    The SOA RNAME hostmaster.ariva.de means hostmaster@ariva.de.
  • ✓ Date-based serial #26
    The serial 2026101901 follows the YYYYMMDDnn convention (2026-10-19).

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

pass

23 records at the apex

Found

Read from
82.97.136.53:53
TypeValueTTL
SOAens1.ariva.de. hostmaster.ariva.de. 2026101901 14400 3600 1209600 864003600
NSens2.ariva.de.3600
NSens1.ariva.de.3600
A82.97.160.1093600
MX10 mail.ariva.de.3600
TXT"v=spf1 mx a:mail.ariva.de ip4:82.97.136.197 ip4:91.190.200.3 ip4:91.190.200.4 include:6614777.spf07.hubspotemail.net -all"1800
TXT"google-site-verification=5vthZcpYnYzSmh22s0MwLDQc4n_Knes8j-mYpW3T-6U"1800
TXT"MS=ms68969434"1800
TXT"2k2l46f97b4h0677qgwv8rw2kfhz70pr"1800
TXT"apple-domain-verification=BgNWOOOFAcdiCEcc"1800
TXT"bw=vmumuF5CrYEThhCskiJ2A7ZMijamgSEXcoaPOcgA3tiW"1800
TXT"anthropic-domain-verification-zsq18a=2qGJWpZW6IaParkyecWGPcJK0"1800
CAA0 issuewild "digicert.com"3600
CAA0 issuewild "godaddy.com"3600
CAA0 issue "digicert.com"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "amazon.com"3600
CAA0 issuewild "amazon.com"3600
CAA0 issuewild "letsencrypt.org"3600
CAA0 issue "sectigo.com"3600
CAA0 iodef "mailto:caa-reports@ariva.de"3600
CAA0 issuewild "globalsign.com"3600
CAA0 issuewild "sectigo.com"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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, godaddy.com, letsencrypt.org, amazon.com, sectigo.com, globalsign.com.