guldahl.dk

📜 Historical scan 2026-06-17 10:40:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldahl.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 April 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 144.76.135.224 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by guldahl-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 41ms

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 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
144.76.135.224	—	static01.bubbleweb.dk	AS24940	Hetzner Online GmbH	144.76.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	guldahl-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca09::6 2a01:111:f403:ca09::d 52.101.68.25 52.101.68.29 52.101.73.11 52.101.73.6	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am6pr04cu00306.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 177ms

TXT Record
google-site-verification=pJLgi4IgH_inHqiuBgo5yy4jpYNVIskVhA3k3bvxxBw
MS=ms11568165
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (guldahl.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.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 2026-10-14 20:06:37

www CNAME	guldahl.dk (all on guldahl.dk) → 144.76.135.224 (AS24940)
www vs bare domain	Same network guldahl.dk: 144.76.135.224 (AS24940) www.guldahl.dk: 144.76.135.224 (AS24940)
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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

70ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2026061701
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 2026-10-19 20:51:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-04-18
Expires	2027-06-30 (253d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

41ms

55ms

38ms

AAAA

71ms

TXT

177ms

CAA

45ms

HTTPS

60ms

TLSA

1894ms

SOA

48ms

MTA-STS

85ms

DNSSEC

70ms

SRV

0ms

Total

2628ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 04:55:35	1132ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 23:35:56	2776ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 01:05:47	852ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-31 21:20:43	2582ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 04:50:20	1659ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 20:48:55	1513ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 02:16:35	2354ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 04:16:22	1447ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:40:08 shown	2628ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:39:54	940ms	2 NS 1 A 1 MX	🔒 Secure