subsurfaceexpertise.dk

📜 Historical scan 2026-06-23 21:59:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

subsurfaceexpertise.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 25 October 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.87 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-cph3.one.com and 2 more. The zone is DNSSEC-signed but currently fails validation, publishes a 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.87	3600s	webcluster1.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

4 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod14-cph3.one.com	185.10.9.212	mx1.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod14-cph3.one.com	185.10.9.213	mx2.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod14-cph3.one.com	185.10.9.214	mx3.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod14-cph3.one.com	185.10.9.215	mx4.pub.mailpod14-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	46.30.215.87
🔶 Autoconfig	46.30.215.87

🔷 AAAA Records (IPv6)#

1 records 103ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:bb:5d6b:5ed4:efb7	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 187ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (subsurfaceexpertise.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.subsurfaceexpertise.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-20 03:24:10

www	46.30.215.117 2a02:2350:5:111:80ae:46aa:77d6:ab86 (AS51468) (address records, no CNAME)
www vs bare domain	Same network subsurfaceexpertise.dk: 46.30.215.117 2a02:2350:5:111:80ae:46aa:77d6:ab86 (AS51468) www.subsurfaceexpertise.dk: 46.30.215.117 2a02:2350:5:111:80ae:46aa:77d6:ab86 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 163ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…

🔐 DNSSEC#

95ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'subsurfaceexpertise.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA#

36ms

Field	Value
Serial	2026060802
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-20 03:55:54

Field	Value
Registrar	ONE.COM A/S
Registered	2018-10-25
Expires	2026-10-31 (10d)

🔗 Same registrant#

12 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
akviferlager.dk	ONE.COM A/S
akviferlagring.dk	ONE.COM A/S
aquiferlagring.dk	ONE.COM A/S
borpro-test.dk	Simply.com A/S
geo-as.dk	ONE.COM A/S
geo2.dk	ONE.COM A/S
geo3.dk	ONE.COM A/S
geoatlas-live.dk	ONE.COM A/S
geoatlas-template.dk	ONE.COM A/S
geoteknisk.dk	ONE.COM A/S
grundvandsvarmepumpe.dk	ONE.COM A/S
grundvandsvarmepumper.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

38ms

41ms

38ms

AAAA

103ms

TXT

187ms

CAA

103ms

HTTPS

109ms

TLSA

163ms

SOA

36ms

MTA-STS

103ms

DNSSEC

95ms

SRV

123ms

Total

786ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 03:24:10	451ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 17:45:55	3458ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-07 17:31:35	2340ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-30 15:59:25	626ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-09 06:15:51	2943ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-07 21:03:15	6912ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-05 23:32:26	4912ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-24 10:30:51	653ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-23 21:59:20 shown	786ms	2 NS 1 A 4 MX	⚠️ Bogus
2026-06-20 17:31:21	602ms	2 NS 1 A 4 MX	⚠️ Bogus
2026-06-17 13:44:02	2528ms	2 NS 1 A 4 MX	🔒 Secure