tuc.dk

📜 Historical scan 2026-08-12 22:38:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tuc.dk is a .dk domain served by 2 nameservers (perla.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 24 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.85.64 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by tuc-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 62ms

Nameserver	IP addresses	PTR	ASN / ISP
perla.ns.cloudflare.com	108.162.194.203 162.159.38.203 172.64.34.203 2606:4700:50::a29f:26cb 2803:f800:50::6ca2:c2cb 2a06:98c1:50::ac40:22cb	perla.ns.cloudflare.com perla.ns.cloudflare.com perla.ns.cloudflare.com perla.ns.cloudflare.com perla.ns.cloudflare.com perla.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
uriah.ns.cloudflare.com	108.162.195.194 162.159.44.194 172.64.35.194 2606:4700:58::a29f:2cc2 2803:f800:50::6ca2:c3c2 2a06:98c1:50::ac40:23c2	uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.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 2040ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.85.64	298s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.203.14	298s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tuc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca04::e 52.101.68.25 52.101.68.39 52.101.68.5 52.101.73.11	mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.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)#

2 records 70ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:5540	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:cb0e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.85.64,172.67.203.14 ech=AEX+DQBBTAAgACCjoQgwdcIQsVqZ+IG4QG1XwsvZIuyJjhujK4aN08peagAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:5540,2606:4700:3032::ac43:cb0e

📝 TXT Records#

3 records 251ms

TXT Record
MS=ms81680838
ouISdCFqU54GLaqQ
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (tuc.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 2026-10-10 02:54:47

www	104.21.85.64 172.67.203.14 2606:4700:3032::6815:5540 2606:4700:3032::ac43:cb0e (AS13335) (address records, no CNAME)
www vs bare domain	Same network tuc.dk: 104.21.85.64 172.67.203.14 2606:4700:3032::6815:5540 2606:4700:3032::ac43:cb0e (AS13335) www.tuc.dk: 104.21.85.64 172.67.203.14 2606:4700:3032::6815:5540 2606:4700:3032::ac43:cb0e (AS13335)
Wildcard	No

🔎 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#

2081ms

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	2411954536
Primary NS (MNAME)	perla.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 10:25:34

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-11-24
Expires	2027-12-31 (439d)

🔗 Same registrant#

43 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
amumidt.dk	Punktum dk A/S (direct)
bilsyn-ringe.dk	Punktum dk A/S (direct)
bilsynherning.dk	Punktum dk A/S (direct)
bilsynringe.dk	Punktum dk A/S (direct)
bilsynspriser.dk	Punktum dk A/S (direct)
bilsynvejle.dk	Punktum dk A/S (direct)
dekra-bilsyn.dk	Punktum dk A/S (direct)
dekra-business.dk	Punktum dk A/S (direct)
dekra-erhvervsuddannelse.dk	Punktum dk A/S (direct)
dekra-eud.dk	Punktum dk A/S (direct)
dekra-it.dk	Punktum dk A/S (direct)
dekra-kl.dk	Punktum dk A/S (direct)
dekra-koerelaerer.dk	Punktum dk A/S (direct)
dekra-korelaerer.dk	Punktum dk A/S (direct)
dekra-kta.dk	Punktum dk A/S (direct)
dekra-midtjylland.dk	Punktum dk A/S (direct)
dekra-vognmand.dk	Punktum dk A/S (direct)
dekra.dk	Punktum dk A/S (direct)
ducas.dk	Punktum dk A/S (direct)
dv-academy.dk	Punktum dk A/S (direct)
dvacademy.dk	Punktum dk A/S (direct)
fpu.dk	Punktum dk A/S (direct)
grønskøreskole.dk	Punktum dk A/S (direct)
koereskoleservice.dk	Punktum dk A/S (direct)
koreskoleservice.dk	Punktum dk A/S (direct)
kta-fyn.dk	Punktum dk A/S (direct)
køreskoleservice.dk	Punktum dk A/S (direct)
nordjysktransportmesse.dk	Punktum dk A/S (direct)
norresundbybilsyn.dk	Punktum dk A/S (direct)
saaby-bilsyn.dk	Punktum dk A/S (direct)
thomas-bilsyn.dk	Punktum dk A/S (direct)
tuc-danmark.dk	Punktum dk A/S (direct)
tuc-dekra.dk	Punktum dk A/S (direct)
tucas.dk	Punktum dk A/S (direct)
tucdanmark.dk	Punktum dk A/S (direct)
tucdekra.dk	Punktum dk A/S (direct)
tucdk.dk	Punktum dk A/S (direct)
tucmidtjylland.dk	Punktum dk A/S (direct)
tucsjaelland.dk	Punktum dk A/S (direct)
vejlebilsyn.dk	Punktum dk A/S (direct)
vestjysk-storvognsskole.dk	Punktum dk A/S (direct)
vognmandskurser.dk	Punktum dk A/S (direct)
vs.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

62ms

2040ms

43ms

AAAA

70ms

TXT

251ms

CAA

49ms

HTTPS

55ms

TLSA

756ms

SOA

0ms

MTA-STS

75ms

DNSSEC

2081ms

SRV

88ms

Total

3903ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 02:54:47	1772ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 01:10:10	2063ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 02:20:43	1342ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 23:23:53	1055ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 21:27:14	11811ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 21:18:08	9788ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-12 22:38:01 shown	3903ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-15 16:11:16	1724ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 16:24:37	2477ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:32:28	2165ms	2 NS 2 A 1 MX	🔓 Insecure