gentoftestudenterkursus.dk

📜 Historical scan 2026-10-09 11:21:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gentoftestudenterkursus.dk is a .dk domain served by 2 nameservers (nena.ns.cloudflare.com, porter.ns.cloudflare.com). It was registered on 23 March 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.9.144 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by gentoftestudenterkursus-dk.mail.protection.outlook.com. 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
nena.ns.cloudflare.com	108.162.194.161 162.159.38.161 172.64.34.161 2606:4700:50::a29f:26a1 2803:f800:50::6ca2:c2a1 2a06:98c1:50::ac40:22a1	nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
porter.ns.cloudflare.com	108.162.195.243 162.159.44.243 172.64.35.243 2606:4700:58::a29f:2cf3 2803:f800:50::6ca2:c3f3 2a06:98c1:50::ac40:23f3	porter.ns.cloudflare.com porter.ns.cloudflare.com porter.ns.cloudflare.com porter.ns.cloudflare.com porter.ns.cloudflare.com porter.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 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.9.144	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.160.144	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	gentoftestudenterkursus-dk.mail.protection.outlook.com	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	159.65.192.70
🔶 Autoconfig	159.65.192.70

🔷 AAAA Records (IPv6)#

2 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:a090	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:990	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.9.144,172.67.160.144 ech=AEX+DQBBjgAgACD+zopphOEd4wE3MjhUHOMvon4iwlravt7ZRBqu34NpQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:a090,2606:4700:3037::6815:990

📝 TXT Records#

2 records 186ms

TXT Record
MS=ms69377665
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (gentoftestudenterkursus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 2026-10-17 00:19:16

www	104.21.9.144 172.67.160.144 2606:4700:3035::ac43:a090 2606:4700:3037::6815:990 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gentoftestudenterkursus.dk: 104.21.9.144 172.67.160.144 2606:4700:3035::ac43:a090 2606:4700:3037::6815:990 (AS13335) www.gentoftestudenterkursus.dk: 104.21.9.144 172.67.160.144 2606:4700:3035::ac43:a090 2606:4700:3037::6815:990 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

118ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2416229165
Primary NS (MNAME)	nena.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 14:42:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-03-23
Expires	2027-03-31 (162d)

🔗 Same registrant#

5 domains

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).

Domain	Registrar
g-gym.dk	Punktum dk A/S (direct)
ge-gy.dk	Punktum dk A/S (direct)
gengym.dk	Punktum dk A/S (direct)
gentoftegymnasium.dk	Punktum dk A/S (direct)
ggy.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

45ms

36ms

AAAA

56ms

TXT

186ms

CAA

52ms

HTTPS

35ms

TLSA

717ms

SOA

33ms

MTA-STS

71ms

DNSSEC

118ms

SRV

71ms

Total

1873ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 00:19:16	3336ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-09 11:21:41 shown	1873ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 18:18:44	1300ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 18:05:50	1977ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-19 05:36:56	5588ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 11:37:01	1719ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 02:19:02	1132ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 00:17:19	893ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 09:32:24	1669ms	2 NS 2 A 1 MX	🔓 Insecure