guldbergco.dk

📜 Historical scan 2026-06-23 02:34:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldbergco.dk is a .dk domain served by 4 nameservers (ns1.simply.COM, ns2.simply.COM, ns3.simply.COM and 1 more). It was registered on 22 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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#

4 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.COM	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.COM	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.COM	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.COM	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	3600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

7 records 100ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	3600s	alt1.aspmx.l.google.com	192.178.211.27 2a00:1450:4010:c22::1a	lcbomp-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	3600s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4003:c26::1b	lcdels-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx2.googlemail.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx3.googlemail.com	192.178.211.27 2404:6800:4003:c26::1a	lcbomp-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4003:c26::1a	tp-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx5.googlemail.com	108.177.125.27 2404:6800:400b:c01b::1a	tp-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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 2026-10-23 20:34:01

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network guldbergco.dk: 94.231.103.100 (AS48854) www.guldbergco.dk: 94.231.103.100 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
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#

76ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2020072990
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 15:48:16

Field	Value
Registrar	Simply.com A/S
Registered	2009-03-22
Expires	2027-03-31 (158d)

📋 WHOIS#

⏱️ Lookup Timing#

52ms

47ms

100ms

AAAA

44ms

TXT

246ms

CAA

44ms

HTTPS

44ms

TLSA

54ms

SOA

28ms

MTA-STS

34ms

DNSSEC

76ms

SRV

123ms

Total

951ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 20:34:01	1254ms	4 NS 1 A 7 MX	🔒 Secure
2026-10-13 15:32:13	882ms	4 NS 1 A 7 MX	🔒 Secure
2026-09-30 16:23:44	992ms	4 NS 1 A 7 MX	🔒 Secure
2026-09-25 15:37:59	673ms	4 NS 1 A 7 MX	🔒 Secure
2026-06-23 02:34:51 shown	951ms	4 NS 1 A 7 MX	🔒 Secure
2026-06-17 10:44:42	855ms	4 NS 1 A 7 MX	🔒 Secure
2026-06-17 10:39:48	986ms	4 NS 1 A 7 MX	🔒 Secure