anisearch.de

Checked 21 October 2026, 21:28 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 9 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

auth1.artfiles.de, auth2.artfiles.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
auth1.artfiles.de, auth2.artfiles.de
NS in the zone
auth1.artfiles.de, auth2.artfiles.de
NameserverAddressesNetwork (AS)Glue
auth1.artfiles.de212.48.124.53 2a00:1f78:af:a1::2AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE212.48.124.53 2a00:1f78:af:a1::2
auth2.artfiles.de212.48.125.53 2a00:1f78:af:a2::2AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE212.48.125.53 2a00:1f78:af:a2::2

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: auth1.artfiles.de, auth2.artfiles.de.
    #6
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a00:1f78:af::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS8893 (ARTFILES-AS - Artfiles New Media GmbH, DE): 4 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
auth1.artfiles.de 212.48.124.53NOERROR, 10 ms, authoritativenoyes / yesrefusedArtfiles DNS Service
auth1.artfiles.de 2a00:1f78:af:a1::2NOERROR, 10 ms, authoritativenoyes / yesrefusedArtfiles DNS Service
auth2.artfiles.de 212.48.125.53NOERROR, 10 ms, authoritativenoyes / yesrefusedArtfiles DNS Service
auth2.artfiles.de 2a00:1f78:af:a2::2NOERROR, 10 ms, authoritativenoyes / yesrefusedArtfiles DNS Service

Checks

  • ✓ All respond #14
    All 4 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: auth1.artfiles.de: "Artfiles DNS Service"; auth2.artfiles.de: "Artfiles DNS Service".
    #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 2026082301 · primary auth1.artfiles.de

Found

Primary (MNAME)
auth1.artfiles.de
Contact (RNAME)
hostmaster.artfiles.de
Serial
2026082301
Refresh / retry
28800 s / 14400 s
Expire
860400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
auth1.artfiles.de (212.48.124.53)2026082301
auth1.artfiles.de (2a00:1f78:af:a1::2)2026082301
auth2.artfiles.de (212.48.125.53)2026082301
auth2.artfiles.de (2a00:1f78:af:a2::2)2026082301

Checks

  • ✓ Serial 2026082301 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 4h, expire 239h, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver auth1.artfiles.de is one of the listed nameservers.
  • ✓ Contact hostmaster@artfiles.de #25
    The SOA RNAME hostmaster.artfiles.de means hostmaster@artfiles.de.
  • ✓ Date-based serial #26
    The serial 2026082301 follows the YYYYMMDDnn convention (2026-08-23).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 8-byte salt
Signatures valid until
21 December 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
27136RSASHA256 (8)SHA256 D63875D5C70B5C8E…yes
59429RSASHA256 (8)SHA256 D65352D002E2A1D1…yes

DNSKEY in the zone

Key tagRoleAlgorithm
60169ZSK (256)RSASHA256 (8)
1884ZSK (256)RSASHA256 (8)
59429KSK (257)RSASHA256 (8)
27136KSK (257)RSASHA256 (8)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 27136 (SHA256), key tag 59429 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-12-21 #30
    The earliest DNSKEY/SOA signature expires at 2026-12-21 05:07 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 0 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

info

8 records at the apex

Found

Read from
212.48.124.53:53
TypeValueTTL
SOAauth1.artfiles.de. hostmaster.artfiles.de. 2026082301 28800 14400 860400 36003600
NSauth1.artfiles.de.3600
NSauth2.artfiles.de.3600
A168.119.4.2353600
AAAA2a01:4f8:242:4f94::23600
MX10 mail.daijobu.de.3600
TXT"google-site-verification=fxRbFATwl-MS6YKNp2aUmOO7KZ1XRxG3T08-aTOQI3U"3600
TXT"v=spf1 +a +mx ip4:168.119.4.235 ip6:2a01:4f8:242:4f94::2 -all"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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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