callabike.de

Checked 21 October 2026, 22:05 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 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

info

ns-c.eurodns.eu, ns-d.eurodns.biz

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-c.eurodns.eu, ns-d.eurodns.biz
NS in the zone
ns-c.eurodns.eu, ns-d.eurodns.biz
NameserverAddressesNetwork (AS)Glue
ns-c.eurodns.eu192.174.68.110 2001:67c:1bc::110AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns-d.eurodns.biz176.97.158.110 2001:67c:10b8::110AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns-c.eurodns.eu, ns-d.eurodns.biz.
    #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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .biz, .eu.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-c.eurodns.eu 192.174.68.110NOERROR, 6 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns-c.eurodns.eu 2001:67c:1bc::110NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns-d.eurodns.biz 176.97.158.110NOERROR, 12 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns-d.eurodns.biz 2001:67c:10b8::110NOERROR, 13 ms, authoritativenoyes / yesrefusedRcodeZero DNS

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: ns-c.eurodns.eu: "RcodeZero DNS"; ns-d.eurodns.biz: "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.

SOA

pass

serial 2026061801 · primary ns-c.eurodns.eu

Found

Primary (MNAME)
ns-c.eurodns.eu
Contact (RNAME)
hostmaster.eurodns.com
Serial
2026061801
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-c.eurodns.eu (192.174.68.110)2026061801
ns-c.eurodns.eu (2001:67c:1bc::110)2026061801
ns-d.eurodns.biz (176.97.158.110)2026061801
ns-d.eurodns.biz (2001:67c:10b8::110)2026061801

Checks

  • ✓ Serial 2026061801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-c.eurodns.eu is one of the listed nameservers.
  • ✓ Contact hostmaster@eurodns.com #25
    The SOA RNAME hostmaster.eurodns.com means hostmaster@eurodns.com.
  • ✓ Date-based serial #26
    The serial 2026061801 follows the YYYYMMDDnn convention (2026-06-18).

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

8 records at the apex

Found

Read from
192.174.68.110:53
TypeValueTTL
SOAns-c.eurodns.eu. hostmaster.eurodns.com. 2026061801 43200 7200 1209600 8640086400
NSns-c.eurodns.eu.86400
NSns-d.eurodns.biz.86400
A212.122.45.883600
MX10 mail.hal.dbrent.net.3600
TXT"v=spf1 include:_spf.dbconnect.net -all"3600
TXT"google-site-verification=TSlfnCi_I4DP7Q6G6qHPNOTiTVytg7_a8gfYuDtZkLc"3600
TXT"apple-domain-verification=2A76rqNZwgd0azznsNz8oKKM9xAbv5FOJLgBb7dR168"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1d.
  • ✓ 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