studyinsonderborg.dk

📜 Historical scan 2026-09-30 05:44:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studyinsonderborg.dk is a .dk domain served by 2 nameservers (betty.ns.cloudflare.com, gordon.ns.cloudflare.com). It was registered on 15 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.54.63 is hosted by Cloudflare, Inc. (AS13335). 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
betty.ns.cloudflare.com	108.162.192.75 172.64.32.75 173.245.58.75 2606:4700:50::adf5:3a4b 2803:f800:50::6ca2:c04b 2a06:98c1:50::ac40:204b	betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com betty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gordon.ns.cloudflare.com	108.162.193.170 172.64.33.170 173.245.59.170 2606:4700:58::adf5:3baa 2803:f800:50::6ca2:c1aa 2a06:98c1:50::ac40:21aa	gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.54.63	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.136.8	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:8808	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:363f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 30ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.21.54.63,172.67.136.8 ech=AEX+DQBB/wAgACAj8q7MWDQP7Ivd04Bdiof5uGPJmpXhw51KpzejfcSnVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:8808,2606:4700:3036::6815:363f

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-13 15:41:58

www	104.21.54.63 172.67.136.8 2606:4700:3034::ac43:8808 2606:4700:3036::6815:363f (AS13335) (address records, no CNAME)
www vs bare domain	Same network studyinsonderborg.dk: 104.21.54.63 172.67.136.8 2606:4700:3034::ac43:8808 2606:4700:3036::6815:363f (AS13335) www.studyinsonderborg.dk: 104.21.54.63 172.67.136.8 2606:4700:3034::ac43:8808 2606:4700:3036::6815:363f (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.studyinsonderborg.dk	-_b5kADcr63RKhQYWQ5ecH-ZowzoTtDWKk_LplCIUns
TXT	_acme-challenge.studyinsonderborg.dk	MqM0tG467uG4i-3pZNV1hb5fDwK_Cr4PbIWFBwtLg6M

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

110ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

32ms

Field	Value
Serial	2416158166
Primary NS (MNAME)	betty.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 05:12:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-02-15
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

41ms

39ms

AAAA

31ms

TXT

175ms

CAA

37ms

HTTPS

30ms

TLSA

51ms

SOA

32ms

MTA-STS

50ms

DNSSEC

110ms

SRV

59ms

Total

850ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 15:41:58	377ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-04 06:04:56	630ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 05:44:33 shown	850ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 02:58:27	678ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-18 21:38:23	989ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-11 19:20:14	770ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-25 17:52:12	2403ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-16 02:33:06	938ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-01 07:29:44	858ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 07:26:23	798ms	2 NS 2 A 0 MX	🔓 Insecure