samsung.de

Checked 22 October 2026, 00:01 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

ns2.syzygy.de, ns8.colt.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns2.syzygy.de, ns8.colt.net
NS in the zone
ns2.syzygy.de, ns8.colt.net
NameserverAddressesNetwork (AS)Glue
ns2.syzygy.de46.28.184.100AS8220 COLT - COLT Technology Services Group Limited, GB46.28.184.100
ns8.colt.net84.14.241.53AS8220 COLT - COLT Technology Services Group Limited, GB-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns2.syzygy.de, ns8.colt.net.
    #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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS8220 (COLT - COLT Technology Services Group Limited, GB): 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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • !
    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
ns2.syzygy.de 46.28.184.100NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns8.colt.net 84.14.241.53NOERROR, 12 ms, authoritativenoyes / yesrefusedColt

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: ns8.colt.net: "Colt".
    #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 2890338028 · primary ns2.syzygy.de

Found

Primary (MNAME)
ns2.syzygy.de
Contact (RNAME)
hostmaster.syzygy.de
Serial
2890338028
Refresh / retry
10800 s / 1800 s
Expire
1209600 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
ns2.syzygy.de (46.28.184.100)2890338028
ns8.colt.net (84.14.241.53)2890338028

Checks

  • ✓ Serial 2890338028 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 14d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.syzygy.de is one of the listed nameservers.
  • ✓ Contact hostmaster@syzygy.de #25
    The SOA RNAME hostmaster.syzygy.de means hostmaster@syzygy.de.
  • ✓ Timestamp serial #26
    The serial 2890338028 is a Unix timestamp (2061-08-03 23:40 UTC).

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
46.28.184.100:53
TypeValueTTL
SOAns2.syzygy.de. hostmaster.syzygy.de. 2890338028 10800 1800 1209600 72007200
NSns8.colt.net.7200
NSns2.syzygy.de.7200
A40.114.243.70600
MX10 mailin.samsung.com.300
TXT"brevo-code:e3c00d8ae53dfb17a14c12c439519698"7200
TXT"v=spf1 include:_spf.samsung.com include:spf.mailjet.com a mx mx:rm01.samsung.de ip4:1.179.115.1 ip4:210.118.78.181 ip4:203.254.231.11 include:spf.u2d.de include:_relay.amadeus.com ip4:203.246.216.99 ip4:203.246.216.100 include:elaine-asp.de ~all"300
TXT"globalsign-domain-verification=BA206D7EAEE61BC808A7FDA643E50846"7200
TXT"1crnr8mxgq9s1v2ghy5k6kg8vp7w6k2s"7200
TXT"pardot1092442=ec6bcf508686d3c64e8c12ed2f8ee9ec0ee99c886074b59eff1f881a00a1a930"7200
TXT"sending_domain1092442=2cef17499a747c83dea6a489296766cfc811575485d0c68255da6b2ba4967d16"7200

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 5m, NS 2h. The NS TTL at the parent is 1d and in the zone 2h; 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