glskole.dk

📜 Historical scan 2026-06-23 12:30:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

glskole.dk is a .dk domain served by 3 nameservers (ns1.c-system.dk, ns2.c-system.dk, ns3.c-system.dk). It was registered on 6 May 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.60.91 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by glskole-dk.mail.protection.outlook.com. 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 171ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.c-system.dk	49.12.60.90	ns1.c-system.dk	AS24940 Hetzner Online GmbH
ns2.c-system.dk	49.12.60.94	ns2.c-system.dk	AS24940 Hetzner Online GmbH
ns3.c-system.dk	37.27.223.112	monitor.itout.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.91	38400s	npm.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records#

1 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	38400s	glskole-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::4 2a01:111:f403:ca09::b 2a01:111:f403:ca09::c 52.101.68.16 52.101.68.8 52.101.73.16 52.101.73.19	mail-db7pr03cu00401.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 224ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 785ms

TXT Record
apple-domain-verification=yjjkcj2PXNPmtC0m
MS=ms37276083
v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (glskole.dk)
-all (hard fail)	v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk 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 2026-10-08 12:33:39

www CNAME	glskole.dk (all on glskole.dk) → 49.12.60.91 (AS24940)
www vs bare domain	Same network glskole.dk: 49.12.60.91 (AS24940) www.glskole.dk: 49.12.60.91 (AS24940)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-glskole-dk._domainkey.glskole.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

130ms

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

🏷️ SOA#

157ms

Field	Value
Serial	1588747349
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	hostmaster@c-system.dk
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	38400s

📋 Registration#

WHOIS fetched 2026-10-11 10:47:31

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-05-06
Expires	2027-01-31 (103d)

🔗 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).

Domain	Registrar
gribskov-skole.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

171ms

72ms

71ms

AAAA

98ms

TXT

785ms

CAA

91ms

HTTPS

169ms

TLSA

135ms

SOA

157ms

MTA-STS

171ms

DNSSEC

130ms

SRV

224ms

Total

1368ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 08:14:30	977ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-21 00:10:13	3625ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 12:30:12 shown	1368ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 04:15:45	1150ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 03:36:01	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 10:33:30	1214ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 10:31:16	2928ms	3 NS 1 A 1 MX	🔓 Insecure