undertøj.dk xn--undertj-v1a.dk

Records from scan: 2026-10-20 04:18:34 · 1919ms total · last checked 2026-10-24 12:24 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

undertøj.dk is a .dk domain served by 2 nameservers (primary.ns.hostup.se, secondary.ns.hostup.se). It was registered on 3 July 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.92.54 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.xn--undertj-v1a.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
primary.ns.hostup.se	198.41.222.135 2400:cb00:2049:1::c629:de87	cf-198-41-222-135.cloudflare.com —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
secondary.ns.hostup.se	162.159.8.163 2400:cb00:2049:1::a29f:8a3	— —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.92.54	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.186.208	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mail.xn--undertj-v1a.dk	185.113.11.10	lambda.hostup.se	AS214640 Hostup AB

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:5c36	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:bad0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.92.54,172.67.186.208 ech=AEX+DQBB3gAgACCAJYqs+g7Obpw0YAaBuh9lX49qEHwZi+EhuLO8FtSTRgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:5c36,2606:4700:3035::ac43:bad0

📝 TXT Records#

1 records 171ms

TXT Record
v=spf1 mx include:spf.hostup.se ~all

✉️ SPF#

Policy	Record (undertøj.dk)
~all (soft fail)	v=spf1 mx include:spf.hostup.se ~all

📨 DMARC#

Policy	Record (_dmarc.undertøj.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-20 04:18:34

www	104.21.92.54 172.67.186.208 2606:4700:3035::6815:5c36 2606:4700:3035::ac43:bad0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network undertøj.dk: 104.21.92.54 172.67.186.208 2606:4700:3035::6815:5c36 2606:4700:3035::ac43:bad0 (AS13335) www.undertøj.dk: 104.21.92.54 172.67.186.208 2606:4700:3035::6815:5c36 2606:4700:3035::ac43:bad0 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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
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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2417858230
Primary NS (MNAME)	primary.ns.hostup.se
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 10:27:48

Field	Value
Registrar	Simply.com A/S
Registered	2026-07-03
Expires	2027-07-02 (250d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

34ms

44ms

AAAA

41ms

TXT

171ms

CAA

36ms

HTTPS

31ms

TLSA

73ms

SOA

43ms

MTA-STS

57ms

DNSSEC

120ms

SRV

1172ms

Total

1919ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 04:18:34 shown	1919ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-13 19:32:03	1307ms	2 NS 2 A 1 MX	❓ Unknown
2026-10-11 11:28:59	693ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-10 10:12:43	652ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 03:14:26	936ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 02:33:27	514ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 12:35:54	835ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 20:44:29	730ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 02:12:15	1853ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 01:22:44	604ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 08:28:47	1026ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 12:08:39	2881ms	2 NS 2 A 1 MX	❓ Unknown
2026-07-28 02:14:06	1373ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-21 04:00:20	1422ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-04 14:38:29	1005ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 01:22:17	364ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 11:12:08	376ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-20 02:55:01	346ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-18 01:23:12	475ms	0 NS 0 A 0 MX	🔒 Secure