kronborggymnasterne.dk

📜 Historical scan 2026-08-18 23:31:32  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kronborggymnasterne.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was registered on 30 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.50.94 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   301ms
NameserverIP addressesPTRASN / ISP
duke.ns.cloudflare.com 108.162.193.110
172.64.33.110
173.245.59.110
2606:4700:58::adf5:3b6e
2803:f800:50::6ca2:c16e
2a06:98c1:50::ac40:216e		 duke.ns.cloudflare.com
duke.ns.cloudflare.com
duke.ns.cloudflare.com
duke.ns.cloudflare.com
duke.ns.cloudflare.com
duke.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com 108.162.192.180
172.64.32.180
173.245.58.180
2606:4700:50::adf5:3ab4
2803:f800:50::6ca2:c0b4
2a06:98c1:50::ac40:20b4		 kiki.ns.cloudflare.com
kiki.ns.cloudflare.com
kiki.ns.cloudflare.com
kiki.ns.cloudflare.com
kiki.ns.cloudflare.com
kiki.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   311ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.50.94 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.159.236 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   334ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx1.mailpod15-cph3.g1i.one.com 104.37.35.36 mx1.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 300s mx2.mailpod15-cph3.g1i.one.com 104.37.35.37 mx2.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 300s mx3.mailpod15-cph3.g1i.one.com 104.37.35.38 mx3.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 300s mx4.mailpod15-cph3.g1i.one.com 104.37.35.39 mx4.mailpod15-cph3.g1i.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover172.67.159.236
🔶 Autoconfig104.21.50.94

🔷 AAAA Records (IPv6)#

2 records   298ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::6815:325e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3034::ac43:9fec 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   349ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.50.94,172.67.159.236 ech=AEX+DQBBTgAgACBS2IeRQOuwWsBMKViE1opK55UxIRhLkmwaqw5AmJDbfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:325e,2606:4700:3034::ac43:9fec

📝 TXT Records#

1 records   1070ms
TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

PolicyRecord (kronborggymnasterne.dk)
~all (soft fail) v=spf1 include:_custspf.one.com ~all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-19 15:32:29
www104.21.50.94 172.67.159.236 2606:4700:3030::6815:325e 2606:4700:3034::ac43:9fec (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   502ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 E54A7262DC6E3E0F06227A22B71D01DC…

🔐 DNSSEC#

671ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412399153
Primary NS (MNAME)duke.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 10:31:56
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2000-08-30
Expires2027-09-30 (342d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
hgf-gymnastik.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
301ms
A
311ms
MX
334ms
AAAA
298ms
TXT
1070ms
CAA
308ms
HTTPS
349ms
TLSA
502ms
SOA
0ms
MTA-STS
608ms
DNSSEC
671ms
SRV
442ms
Total
6748ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-19 15:32:29 886ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-18 14:31:55 1710ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-17 13:18:10 1034ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-16 12:57:54 684ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-30 18:01:53 2592ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-24 17:26:41 2543ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-10 19:28:38 826ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-25 05:23:03 2044ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-18 23:31:32 shown 6748ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-16 14:26:04 4419ms 2 NS 2 A 4 MX 🔓 Insecure
2026-07-03 14:56:21 2976ms 2 NS 2 A 4 MX 🔓 Insecure
2026-07-01 05:31:22 1801ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-26 21:10:22 822ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-21 10:44:47 731ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-18 00:24:06 983ms 2 NS 2 A 4 MX 🔓 Insecure
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