teoritilkorekort.dk

📜 Historical scan 2026-09-30 10:10:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

teoritilkorekort.dk is a .dk domain served by 2 nameservers (hasslo.ns.cloudflare.com, jule.ns.cloudflare.com). It was registered on 16 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.54.57 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.dandomain.dk, mx2.dandomain.dk. 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 63ms

Nameserver	IP addresses	PTR	ASN / ISP
hasslo.ns.cloudflare.com	108.162.195.134 162.159.44.134 172.64.35.134 2606:4700:58::a29f:2c86 2803:f800:50::6ca2:c386 2a06:98c1:50::ac40:2386	hasslo.ns.cloudflare.com hasslo.ns.cloudflare.com hasslo.ns.cloudflare.com hasslo.ns.cloudflare.com hasslo.ns.cloudflare.com hasslo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jule.ns.cloudflare.com	108.162.192.175 172.64.32.175 173.245.58.175 2606:4700:50::adf5:3aaf 2803:f800:50::6ca2:c0af 2a06:98c1:50::ac40:20af	jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.ns.cloudflare.com jule.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.54.57	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.168.24	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	300s	mx2.dandomain.dk	46.36.209.11	mx2.dandomain.dk	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

2 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:a818	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:3639	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 59ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.54.57,172.67.168.24 ech=AEX+DQBBtQAgACAAdwTQLbqYK0sdUVDib5ozbHMmbrXTrcXDS27YbwHRBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:a818,2606:4700:3037::6815:3639

📝 TXT Records#

2 records 235ms

TXT Record
google-site-verification=Zl3G1g_hdsZzoItdvNL-gMRRRHALq-vzz7i_tlrr4PY
v=spf1 include:spf.dandomain.dk ip4:65.108.11.178 ip4:46.4.121.70 ~all

✉️ SPF#

Policy	Record (teoritilkorekort.dk)
~all (soft fail)	v=spf1 include:spf.dandomain.dk ip4:65.108.11.178 ip4:46.4.121.70 ~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 2026-10-19 07:48:21

www	104.21.54.57 172.67.168.24 2606:4700:3032::ac43:a818 2606:4700:3037::6815:3639 (AS13335) (address records, no CNAME)
www vs bare domain	Same network teoritilkorekort.dk: 104.21.54.57 172.67.168.24 2606:4700:3032::ac43:a818 2606:4700:3037::6815:3639 (AS13335) www.teoritilkorekort.dk: 104.21.54.57 172.67.168.24 2606:4700:3032::ac43:a818 2606:4700:3037::6815:3639 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.teoritilkorekort.dk	DfA7NMXQbh24wkAGXKX36gszvSxbB8vem5IQhkPSKr0

🔗 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#

0ms

Field	Value
Serial	2414475446
Primary NS (MNAME)	hasslo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 07:58:22

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-11-16
Expires	2026-11-15 (25d)

🔗 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
teoribanditen.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

63ms

35ms

54ms

AAAA

59ms

TXT

235ms

CAA

62ms

HTTPS

59ms

TLSA

163ms

SOA

0ms

MTA-STS

82ms

DNSSEC

110ms

SRV

67ms

Total

990ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 07:48:21	1305ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-18 07:24:15	530ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 08:36:25	731ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 10:10:01 shown	990ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-24 14:26:35	694ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-11 13:12:43	2003ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 08:52:20	809ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-18 20:26:10	5703ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-15 01:36:09	2869ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-28 06:00:42	938ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-18 06:53:06	3099ms	2 NS 2 A 2 MX	🔓 Insecure