mt-underground.dk

📜 Historical scan 2026-09-30 17:06:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mt-underground.dk is a .dk domain served by 2 nameservers (coen.ns.cloudflare.com, paislee.ns.cloudflare.com). It was registered on 14 July 2026 (WHOIS) and first appeared in the .dk zone on 15 July 2026. Its website address 104.21.20.172 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
coen.ns.cloudflare.com	108.162.195.151 162.159.44.151 172.64.35.151 2606:4700:58::a29f:2c97 2803:f800:50::6ca2:c397 2a06:98c1:50::ac40:2397	coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
paislee.ns.cloudflare.com	108.162.194.183 162.159.38.183 172.64.34.183 2606:4700:50::a29f:26b7 2803:f800:50::6ca2:c2b7 2a06:98c1:50::ac40:22b7	paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.20.172	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.193.61	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:c13d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:14ac	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 54ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.20.172,172.67.193.61 ech=AEX+DQBBIAAgACC0zA43QQEPXf0h948Q6XRjN1sVQRaoZpeWL8pJJzaaYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:c13d,2606:4700:3037::6815:14ac

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-07 21:49:45

www	Exists, no address
www vs bare domain	www does not resolve mt-underground.dk: 104.21.20.172 172.67.193.61 2606:4700:3030::ac43:c13d 2606:4700:3037::6815:14ac (AS13335) www.mt-underground.dk: no address (all like this)
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

71ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

57ms

Field	Value
Serial	2414847819
Primary NS (MNAME)	coen.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 02:10:37

Field	Value
Registrar	ONE.COM A/S
Registered	2026-07-14
Expires	2027-07-13 (264d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

39ms

51ms

AAAA

44ms

TXT

173ms

CAA

32ms

HTTPS

54ms

TLSA

60ms

SOA

57ms

MTA-STS

59ms

DNSSEC

71ms

SRV

74ms

Total

497ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 21:49:45	1011ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-03 17:18:39	1954ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-30 17:06:55 shown	497ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-26 09:41:16	686ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-15 23:24:08	1092ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-13 06:40:22	1452ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-09 00:26:40	2114ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-24 13:17:09	991ms	2 NS 0 A 0 MX	🔒 Secure
2026-08-17 01:22:33	1408ms	2 NS 0 A 0 MX	🔒 Secure
2026-08-04 03:50:25	8538ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-27 08:00:43	831ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-25 07:16:01	2355ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-15 08:39:39	703ms	2 NS 0 A 0 MX	🔓 Insecure