ctwo.dk

📜 Historical scan 2026-06-21 11:09:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ctwo.dk is a .dk domain served by 3 nameservers (dns1.oderland.com, dns2.oderland.com, dns3.oderland.com). It was registered on 29 October 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.201.60.48 is hosted by ODERLAND Webbhotell AB (AS44136) in Sweden. Mail is handled by ctwo-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 95ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.oderland.com	2a02:28f0::41 91.201.61.4	dns1.oderland.com dns1.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
dns2.oderland.com	2a02:28f0::46:1 46.16.239.247	— dns2.oderland.com	AS44136 ODERLAND Webbhotell AB AS44136 ODERLAND Webbhotell AB
dns3.oderland.com	2a00:1a28:1108:b::4:1 46.246.43.220	dns3.oderland.com dns3.oderland.com	AS42708 Glesys AB AS42708 Glesys AB

🌍 A Records#

1 records 108ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.201.60.48	7200s	jizo.oderland.com	AS44136	ODERLAND Webbhotell AB	91.201.60.0/22	🇸🇪 Sweden	—

📧 MX Records#

1 records 83ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	7200s	ctwo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::a 2a01:111:f403:ca09::5 2a01:111:f403:ca09::e 52.101.68.0 52.101.68.18 52.101.68.32 52.101.73.22	mail-du2pr03cu00102.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

1 records 100ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:28f0:3013:26::	7200s	jizo.oderland.com	AS44136	ODERLAND Webbhotell AB	2a02:28f0:0:0:0:0:0:0/29	🇸🇪 Sweden	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 415ms

TXT Record
MS=ms53165196
v=spf1 ip4:91.201.60.48 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (ctwo.dk)
-all (hard fail)	v=spf1 ip4:91.201.60.48 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.ctwo.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 2026-10-12 07:52:53

www CNAME	ctwo.dk (all on ctwo.dk) → 91.201.60.48 2a02:28f0:3013:26:: (AS44136)
www vs bare domain	Same network ctwo.dk: 91.201.60.48 2a02:28f0:3013:26:: (AS44136) www.ctwo.dk: 91.201.60.48 2a02:28f0:3013:26:: (AS44136)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ctwo.dk	zWmywCb8x2HuvVfnR6QuLRFGSXV1wvqJe1Kpcq0TsR0

🔗 TLSA / DANE#

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

🔐 DNSSEC#

212ms

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

🏷️ SOA#

70ms

Field	Value
Serial	2026061201
Primary NS (MNAME)	dns1.oderland.com
Responsible (RNAME)	registry@oderland.se
Refresh	3600s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-12 08:18:41

Field	Value
Registrar	ODERLAND Webbhotell AB
Registered	2021-10-29
Expires	2027-10-28 (372d)

🔗 Same registrant#

1 domain

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
musematter.dk	ODERLAND Webbhotell AB

📋 WHOIS#

⏱️ Lookup Timing#

95ms

108ms

83ms

AAAA

100ms

TXT

415ms

CAA

90ms

HTTPS

124ms

TLSA

172ms

SOA

70ms

MTA-STS

106ms

DNSSEC

212ms

SRV

135ms

Total

1257ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 07:52:53	1735ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 01:07:45	1096ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 04:47:01	845ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 15:06:03	1749ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-12 10:30:43	5859ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-21 11:09:39 shown	1257ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 00:21:49	4342ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-16 23:11:25	626ms	3 NS 1 A 1 MX	🔒 Secure