gkskoler.dk

📜 Historical scan 2026-09-03 21:54:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gkskoler.dk is a .dk domain served by 3 nameservers (mimer.deic.dk, ns-soa.darenet.dk, orion.i2.dk). It was registered on 23 February 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.48.120.91 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail01.mxhotel.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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#

3 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
mimer.deic.dk	2001:87f:ff27:65::66 95.128.27.66	mimer.deic.dk mimer.deic.dk	AS198455 Danmarks Tekniske Universitet AS198455 Danmarks Tekniske Universitet
ns-soa.darenet.dk	130.226.179.50 2001:878:0:e000:82:e2:b3:32	ns-soa.darenet.dk ns-soa.darenet.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
orion.i2.dk	78.153.182.90	orion.i2.dk	AS31027 GlobalConnect A/S

🌍 A Records#

1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.48.120.91	3600s	—	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	Stouby

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail01.mxhotel.dk	2a02:2350:5:102:80c6:164d:726d:645c 77.111.240.184	— webcluster57.webpod11-cph3.one.com	AS51468 One.com A/S AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	87.48.120.91
🔶 Autoconfig	87.48.120.91

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 364ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	8	100	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 157ms

TXT Record
SOA=1692718472
v=spf1 include:outlook.com ~all

✉️ SPF#

Policy	Record (gkskoler.dk)
~all (soft fail)	v=spf1 include: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 2026-10-12 04:01:55

www	87.48.120.91 (AS3292) (address records, no CNAME)
www vs bare domain	Same network gkskoler.dk: 87.48.120.91 (AS3292) www.gkskoler.dk: 87.48.120.91 (AS3292)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

85ms

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

🏷️ SOA#

0ms

Field	Value
Serial	1692718472
Primary NS (MNAME)	mimer.deic.dk
Responsible (RNAME)	dns@support.i2.dk
Refresh	16384s
Retry	2048s
Expire	2097152s
Minimum (neg-cache TTL)	2560s

📋 Registration#

WHOIS fetched 2026-10-06 01:54:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-02-23
Expires	2027-02-28 (125d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

46ms

42ms

AAAA

39ms

TXT

157ms

CAA

38ms

HTTPS

41ms

TLSA

145ms

SOA

0ms

MTA-STS

53ms

DNSSEC

85ms

SRV

364ms

Total

852ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:03:39	529ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-03 21:54:01 shown	852ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 10:32:32	602ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 10:29:09	611ms	3 NS 1 A 1 MX	🔓 Insecure