jacobsenbyg.dk

📜 Historical scan 2026-06-18 05:36:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobsenbyg.dk is a .dk domain served by 2 nameservers (ns1.dnsserver.dk, ns2.dnsserver.dk). It was registered on 21 July 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.8.38.10 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, publishes a 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnsserver.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dnsserver.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.8.38.10	—	—	AS48854	team.blue Denmark A/S	193.8.38.0/24	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 362ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (jacobsenbyg.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.jacobsenbyg.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s;

📬 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 2026-10-13 13:16:33

www	193.8.38.10 (AS48854) (address records, no CNAME)
www vs bare domain	Same network jacobsenbyg.dk: 193.8.38.10 (AS48854) www.jacobsenbyg.dk: 193.8.38.10 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

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

🏷️ SOA#

30ms

Field	Value
Serial	2025122901
Primary NS (MNAME)	ns1.dnsserver.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-20 01:31:40

Field	Value
Registrar	CURANET A/S
Registered	2025-07-21
Expires	2030-07-20 (1365d)

🔗 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#

33ms

AAAA

33ms

TXT

362ms

CAA

32ms

HTTPS

31ms

TLSA

539ms

SOA

30ms

MTA-STS

46ms

DNSSEC

106ms

SRV

201ms

Total

1216ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 19:54:47	403ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-25 13:43:25	734ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-30 01:32:40	459ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-26 19:59:49	455ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-25 10:30:26	1329ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-20 15:12:21	940ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-18 05:36:03 shown	1216ms	2 NS 1 A 0 MX	🔒 Secure