jacobolsen.dk

Records from scan: 2026-10-13 04:05:34 · 782ms total · last checked 2026-10-18 10:18 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobolsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 May 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.47.252.189 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by in1-smtp.messagingengine.com, in2-smtp.messagingengine.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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 28ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.47.252.189	3600s	static.189.252.47.78.clients.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

2 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	in1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	43200s	in2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	78.47.252.189
🔶 Autoconfig	78.47.252.189

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 161ms

TXT Record
v=spf1 include:spf.messagingengine.com ?all

✉️ SPF#

Policy	Record (jacobolsen.dk)
?all (neutral)	v=spf1 include:spf.messagingengine.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#

checked 2026-10-13 04:05:34

www	78.47.252.189 (AS24940) (address records, no CNAME)
www vs bare domain	Same network jacobolsen.dk: 78.47.252.189 (AS24940) www.jacobolsen.dk: 78.47.252.189 (AS24940)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

59ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026101201
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 2026-10-13 04:29:21

Field	Value
Registrar	ONE.COM A/S
Registered	2006-05-22
Expires	2027-05-31 (224d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

35ms

36ms

AAAA

53ms

TXT

161ms

CAA

51ms

HTTPS

60ms

TLSA

319ms

SOA

42ms

MTA-STS

62ms

DNSSEC

59ms

SRV

67ms

Total

782ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:05:34 shown	782ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-16 05:07:19	1237ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-12 19:55:56	1574ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-18 12:59:48	1294ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-16 06:06:44	3293ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-25 18:31:42	2623ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-22 15:05:24	1108ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 18:56:06	1416ms	2 NS 1 A 2 MX	🔒 Secure