chatgptkursus.dk

📜 Historical scan 2026-10-02 17:16:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

chatgptkursus.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 14 June 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.193.213.10 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by chatgptkursus-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

2 records 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
141.193.213.10	2202s	—	AS209242	Cloudflare London, LLC	141.193.213.0/24	🇺🇸 United States	—
141.193.213.11	2202s	—	AS209242	Cloudflare London, LLC	141.193.213.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	chatgptkursus-dk.mail.protection.outlook.com	2a01:111:f403:ca21::a 2a01:111:f403:ca38::8 2a01:111:f403:ca3c::8 2a01:111:f403:ca3c::a 52.101.103.39 52.101.73.153 52.101.73.155 52.101.91.153	mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-matpr04cu00101.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 119ms

TXT Record
ms=ms66757281
openai-domain-verification=dv-jugzil8snnczxth80jmw6ejx
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (chatgptkursus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.chatgptkursus.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@chatgptkursus.dk; ruf=mailto:dmarc@chatgptkursus.dk

📬 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 10:28:19

www CNAME	chatgptkursus.dk (all on chatgptkursus.dk) → 141.193.213.10 141.193.213.11 (AS209242)
www vs bare domain	Same network chatgptkursus.dk: 141.193.213.10 141.193.213.11 (AS209242) www.chatgptkursus.dk: 141.193.213.10 141.193.213.11 (AS209242)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-chatgptkursus-dk._domainkey.ibexibexaps.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

75ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026100200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-02 17:31:24

Field	Value
Registrar	Simply.com A/S
Registered	2023-06-14
Expires	2027-06-13 (233d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

64ms

26ms

AAAA

37ms

TXT

119ms

CAA

33ms

HTTPS

45ms

TLSA

500ms

SOA

40ms

MTA-STS

59ms

DNSSEC

75ms

SRV

63ms

Total

921ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 10:28:19	1208ms	3 NS 2 A 1 MX	🔓 Insecure
2026-10-07 23:36:12	2946ms	3 NS 2 A 1 MX	🔓 Insecure
2026-10-02 17:16:19 shown	921ms	3 NS 2 A 1 MX	🔓 Insecure
2026-09-30 16:58:56	1024ms	3 NS 2 A 1 MX	🔓 Insecure
2026-06-27 14:34:29	1289ms	3 NS 2 A 1 MX	🔓 Insecure
2026-06-16 20:25:09	2538ms	3 NS 2 A 1 MX	🔓 Insecure