oerstedolsen.dk

📜 Historical scan 2026-06-19 16:08:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

oerstedolsen.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 9 September 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.178 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by oerstedolsen.dk. The zone is not DNSSEC-signed, 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#

3 records 139ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.e-studio.dk	195.242.131.5 2001:67c:564:fffc::11	ns1.e-studio.dk ns1.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.e-studio.dk	2a00:1b18:2:3::2 62.69.152.34	ns2.e-studio.dk 34.34-46.152.69.62.in-addr.arpa	AS47527 DLX A/S AS47527 DLX A/S
ns3.e-studio.dk	193.200.90.183 2001:67c:564:fffc::13	ns3.e-studio.dk ns3.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 217ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.178	14400s	web6.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 251ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	oerstedolsen.dk	193.200.90.178	web6.e-studio.dk	AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.200.90.178
🔶 Autoconfig	193.200.90.178

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 290ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records 622ms

TXT Record
v=spf1 +include:_spf.e-studio.dk -all

✉️ SPF#

Policy	Record (oerstedolsen.dk)
-all (hard fail)	v=spf1 +include:_spf.e-studio.dk -all

📨 DMARC#

Policy	Record (_dmarc.oerstedolsen.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-08 04:39:24

www CNAME	oerstedolsen.dk (all on oerstedolsen.dk) → 193.200.90.178 (AS62121)
www vs bare domain	Same network oerstedolsen.dk: 193.200.90.178 (AS62121) www.oerstedolsen.dk: 193.200.90.178 (AS62121)
Wildcard	No
Denial of existence	NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.oerstedolsen.dk	GxLui34Ga5mA1kQZ0lxgOMk7RuA-YgExhQekP5kTp7U

🔗 TLSA / DANE#

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

🔐 DNSSEC#

385ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

293ms

Field	Value
Serial	2026052801
Primary NS (MNAME)	ns1.e-studio.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-26 02:16:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-09-09
Expires	2027-09-30 (338d)

🔗 Same registrant#

6 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).

Domain	Registrar
aalbaek.dk	Punktum dk A/S (direct)
akmia.dk	Punktum dk A/S (direct)
infosikkerhed.dk	Punktum dk A/S (direct)
laserboy.dk	Punktum dk A/S (direct)
mettestumlinger.dk	Punktum dk A/S (direct)
oled.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

139ms

217ms

251ms

AAAA

214ms

TXT

622ms

CAA

376ms

HTTPS

228ms

TLSA

238ms

SOA

293ms

MTA-STS

313ms

DNSSEC

385ms

SRV

290ms

Total

2192ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 02:22:29	1112ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-28 11:22:52	664ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-19 16:08:23 shown	2192ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 14:44:34	1060ms	3 NS 1 A 1 MX	🔓 Insecure