dws.de

Checked 21 October 2026, 22:15 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

ns.domainnetwork.se, ns2.domainnetwork.se

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.domainnetwork.se, ns2.domainnetwork.se
NS in the zone
ns.domainnetwork.se, ns2.domainnetwork.se
NameserverAddressesNetwork (AS)Glue
ns.domainnetwork.se156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns2.domainnetwork.se156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.domainnetwork.se, ns2.domainnetwork.se.
    #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 one network
    all IPv4 addresses are in 156.154.130.0/24; all IPv6 addresses are in 2610:a1:1022::/48. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 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 .se
    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
ns.domainnetwork.se 156.154.130.100NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns.domainnetwork.se 2610:a1:1022::100NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.domainnetwork.se 156.154.130.100NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.domainnetwork.se 2610:a1:1022::100NOERROR, 14 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

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.domainnetwork.se: "UltraDNS Nameserver"; ns2.domainnetwork.se: "UltraDNS Nameserver".
    #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 2013112237 · primary ns.domainnetwork.se

Found

Primary (MNAME)
ns.domainnetwork.se
Contact (RNAME)
hostmaster.cscdns.net
Serial
2013112237
Refresh / retry
21600 s / 3600 s
Expire
2419200 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns.domainnetwork.se (156.154.130.100)2013112237
ns.domainnetwork.se (2610:a1:1022::100)2013112237
ns2.domainnetwork.se (156.154.130.100)2013112237
ns2.domainnetwork.se (2610:a1:1022::100)2013112237

Checks

  • ✓ Serial 2013112237 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 28d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.domainnetwork.se is one of the listed nameservers.
  • ✓ Contact hostmaster@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Date-based serial #26
    The serial 2013112237 follows the YYYYMMDDnn convention (2013-11-22).

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

18 records at the apex

Found

Read from
156.154.130.100:53
TypeValueTTL
SOAns.domainnetwork.se. hostmaster.cscdns.net. 2013112237 21600 3600 2419200 8640086400
NSns.domainnetwork.se.86400
NSns2.domainnetwork.se.86400
A82.98.81.5886400
MX10 smtp11.db.com.86400
MX10 smtp21.db.com.86400
MX30 smtp23.db.com.86400
TXT"v=spf1 -all"86400
TXT"MS=ms79759843"86400
TXT"0sp395rnzntkfw18zcsc1fssbkbd4l61"86400
TXT"12870g7m8kgrvxv9fx0mwbnr19nm4w8b"86400
TXT"_globalsign-domain-verification=-3CSLxJ4YUX-r4IkMLIHVuIZyYvp3Ctkzxts6L-vN7"86400
TXT"_globalsign-domain-verification=EEZtdsKh7SN0JLINe3b0XIVEhJDoKjllLyMyfiVSUO"86400
CAA0 iodef "mailto:CA.Infoservices@db.com"86400
CAA0 issue "digicert.com"86400
CAA0 issue "globalsign.com"86400
CAA0 issue "quovadisglobal.com"86400
CAA0 issuewild ";"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, globalsign.com, quovadisglobal.com, none (issuance forbidden).