cassen.dk

📜 Historical scan 2026-09-04 12:00:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cassen.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.102 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by cassen-dk.mail.protection.outlook.com. 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 48ms

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 ns2.e-studio.dk	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 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.102	14400s	web9.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cassen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca09::9 2a01:111:f403:ca09::a 52.101.68.32 52.101.68.5 52.101.73.12 52.101.73.8	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr04cu00500.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 84ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (cassen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.cassen.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 13:46:09

www CNAME	cassen.dk (all on cassen.dk) → 193.200.90.102 (AS62121)
www vs bare domain	Same network cassen.dk: 193.200.90.102 (AS62121) www.cassen.dk: 193.200.90.102 (AS62121)
Wildcard	No

✍️ 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.cassen.dk	0_D5GhYS58KQjTUo0tWbdTSFjGdlv99oq_v5L5ei2Ug

🔗 TLSA / DANE#

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

🔐 DNSSEC#

98ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026083101
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#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

48ms

22ms

32ms

AAAA

30ms

TXT

84ms

CAA

41ms

HTTPS

25ms

TLSA

581ms

SOA

0ms

MTA-STS

36ms

DNSSEC

98ms

SRV

47ms

Total

1021ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 04:38:07	799ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-17 21:21:47	1262ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-04 12:00:38 shown	1021ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-02 01:28:50	1232ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 19:46:00	992ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 19:41:04	2766ms	3 NS 1 A 1 MX	🔓 Insecure