ztu.dk

📜 Historical scan 2026-06-25 20:27:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ztu.dk is a .dk domain served by 2 nameservers (anita.ns.cloudflare.com, fattouche.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.88.39 is hosted by Cloudflare, Inc. (AS13335). 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 232ms

Nameserver	IP addresses	PTR	ASN / ISP
anita.ns.cloudflare.com	108.162.194.82 162.159.38.82 172.64.34.82 2606:4700:50::a29f:2652 2803:f800:50::6ca2:c252 2a06:98c1:50::ac40:2252	anita.ns.cloudflare.com anita.ns.cloudflare.com anita.ns.cloudflare.com anita.ns.cloudflare.com anita.ns.cloudflare.com anita.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
fattouche.ns.cloudflare.com	108.162.195.48 162.159.44.48 172.64.35.48 2606:4700:58::a29f:2c30 2803:f800:50::6ca2:c330 2a06:98c1:50::ac40:2330	fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.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 187ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.88.39	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.172.73	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.88.39
🔶 Autoconfig	172.67.172.73

🔷 AAAA Records (IPv6)#

2 records 228ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:5827	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:ac49	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 216ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.88.39,172.67.172.73 ech=AEX+DQBBhQAgACBDVoN6M0evZKRa47Qn1C55d8GGxpzOgAEo31YV5YaFBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:5827,2606:4700:3036::ac43:ac49

📝 TXT Records#

1 records 502ms

TXT Record
MS=ms97125873

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-17 17:31:32

www	104.21.88.39 172.67.172.73 2606:4700:3035::6815:5827 2606:4700:3036::ac43:ac49 (AS13335) (address records, no CNAME)
www vs bare domain	Same network ztu.dk: 104.21.88.39 172.67.172.73 2606:4700:3035::6815:5827 2606:4700:3036::ac43:ac49 (AS13335) www.ztu.dk: 104.21.88.39 172.67.172.73 2606:4700:3035::6815:5827 2606:4700:3036::ac43:ac49 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

307ms

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

🏷️ SOA#

219ms

Field	Value
Serial	2405131702
Primary NS (MNAME)	anita.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

232ms

187ms

197ms

AAAA

228ms

TXT

502ms

CAA

200ms

HTTPS

216ms

TLSA

382ms

SOA

219ms

MTA-STS

261ms

DNSSEC

307ms

SRV

258ms

Total

2049ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 22:15:18	529ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 05:05:48	638ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 14:15:09	1637ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 13:36:22	698ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 03:11:41	463ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-26 02:05:16	1814ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-05 23:13:44	1460ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-26 15:02:37	1773ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 20:27:36 shown	2049ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 13:17:10	3612ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 20:20:49	1598ms	2 NS 2 A 0 MX	🔓 Insecure