gulstroem.dk

📜 Historical scan 2026-06-19 23:31:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gulstroem.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 August 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.39.198 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by gulstrom-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 37ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.39.198	3600s	5.103.39.198.static.fibianet.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Holbæk

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	gulstrom-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 52.101.73.11 52.101.73.15 52.101.73.2 52.101.73.26	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 52.98.239.136
🔶 Autoconfig	gulstroem.dk → 5.103.39.198

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 150ms

TXT Record
google-site-verification=csnoWC2GqNNhHSsetRvfcbe2-iMWdtD1oSC8D0NP1gY
google-site-verification=GotEhDcS9PD9jLP74JsihQc0EkbgN8qrmLskIPfzRBc
google-site-verification=IHcSqLB6iRbiLsKuTtqfxoH0DT0ux0W5us2aHy7GpJE
MS=ms61495145
v=spf1 mx ip4:5.103.39.212 include:spf.protection.outlook.com a:mail.nrgi.dk include:trustpilotservice.com include:spf.mandrillapp.com include:rnmk.com ~all

✉️ SPF#

Policy	Record (gulstroem.dk)
~all (soft fail)	v=spf1 mx ip4:5.103.39.212 include:spf.protection.outlook.com a:mail.nrgi.dk include:trustpilotservice.com include:spf.mandrillapp.com include:rnmk.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 15:11:40

www	5.103.39.198 (AS44869) (address records, no CNAME)
www vs bare domain	Same network gulstroem.dk: 5.103.39.198 (AS44869) www.gulstroem.dk: 5.103.39.198 (AS44869)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: ~all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.gulstroem.dk	gulstroem.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

56ms

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

🏷️ SOA#

51ms

Field	Value
Serial	2026061001
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 2026-10-10 15:40:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-08-27
Expires	2027-08-31 (311d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

41ms

AAAA

36ms

TXT

150ms

CAA

38ms

HTTPS

36ms

TLSA

244ms

SOA

51ms

MTA-STS

57ms

DNSSEC

56ms

SRV

88ms

Total

793ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 15:11:39	1461ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 11:53:41	1235ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 11:53:29	1103ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 16:45:22	822ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 04:19:20	1346ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 20:37:12	1202ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 03:25:14	1977ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 23:31:27 shown	793ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:06:44	4901ms	2 NS 1 A 1 MX	🔒 Secure