visitcopenhagen.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 6 info

Registration

info

.com generic · Key-Systems GmbH · expires 2028-06-20

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Key-Systems GmbH
Registered
20 June 2001
Last changed
23 May 2026
Expires
20 June 2028
Status
client transfer prohibited
Registry nameservers
ns.scannet2.dk, ns2.scannet2.dk
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2028-06-20 #3
    The registration is valid until 2028-06-20 (607 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns.scannet2.dk, ns2.scannet2.dk

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.scannet2.dk, ns2.scannet2.dk
NS in the zone
ns.scannet2.dk, ns2.scannet2.dk
NameserverAddressesNetwork (AS)Glue
ns.scannet2.dk185.25.141.9 2a02:2339:4006:10d::4171:4171AS48854 team-blue-denmark - team.blue Denmark A/S, DK AS48854 team-blue-denmark - team.blue Denmark A/S, DK-
ns2.scannet2.dk91.197.248.72 2a02:2339:1:112:0:5:1:b11AS48854 team-blue-denmark - team.blue Denmark A/S, DK AS48854 team-blue-denmark - team.blue Denmark A/S, DK-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.scannet2.dk, ns2.scannet2.dk.
    #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 (AS48854 (team-blue-denmark - team.blue Denmark A/S, DK): 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 .dk
    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.scannet2.dk 185.25.141.9NOERROR, 19 ms, authoritativenoyes / yesrefusednope
ns.scannet2.dk 2a02:2339:4006:10d::4171:4171NOERROR, 19 ms, authoritativenoyes / yesrefusednope
ns2.scannet2.dk 91.197.248.72NOERROR, 18 ms, authoritativenoyes / yesrefusednope
ns2.scannet2.dk 2a02:2339:1:112:0:5:1:b11NOERROR, 18 ms, authoritativenoyes / yesrefusednope

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.scannet2.dk: "nope"; ns2.scannet2.dk: "nope".
    #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 2026092801 · primary ns.scannet2.dk

Found

Primary (MNAME)
ns.scannet2.dk
Contact (RNAME)
hostmaster.scannet.dk
Serial
2026092801
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns.scannet2.dk (185.25.141.9)2026092801
ns.scannet2.dk (2a02:2339:4006:10d::4171:4171)2026092801
ns2.scannet2.dk (91.197.248.72)2026092801
ns2.scannet2.dk (2a02:2339:1:112:0:5:1:b11)2026092801

Checks

  • ✓ Serial 2026092801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.scannet2.dk is one of the listed nameservers.
  • ✓ Contact hostmaster@scannet.dk #25
    The SOA RNAME hostmaster.scannet.dk means hostmaster@scannet.dk.
  • ✓ Date-based serial #26
    The serial 2026092801 follows the YYYYMMDDnn convention (2026-09-28).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
1 iterations, 1-byte salt
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
19178ECDSAP256SHA256 (13)SHA384 AB8FD8BB507A47D1…yes

DNSKEY in the zone

Key tagRoleAlgorithm
19178KSK (257)ECDSAP256SHA256 (13)

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 19178 (SHA384).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-05 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 1 iteration and a 1-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
185.25.141.9:53
TypeValueTTL
SOAns.scannet2.dk. hostmaster.scannet.dk. 2026092801 14400 3600 1209600 3003600
NSns.scannet2.dk.3600
NSns2.scannet2.dk.3600
A4.225.107.152600
MX0 visitcopenhagen-com.mail.protection.outlook.com.600
TXT"v=spf1 include:spf.scannet.dk include:customerspf.sitecore.net ?all"600
TXT"MS=ms89141947"600
TXT"klaviyo-site-verification=RsRM49"600

Checks

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