2o.dk

📜 Historical scan 2026-06-16 12:55:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

2o.dk is a .dk domain served by 2 nameservers (kate.ns.cloudflare.com, terry.ns.cloudflare.com). It was registered on 19 February 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.2.238 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.exer.dk. The zone is not DNSSEC-signed, has no 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#

2 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
kate.ns.cloudflare.com	—	—	—
terry.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.2.238	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.129.209	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.exer.dk	5.255.103.58	mail.exer.dk	AS60404 The Infrastructure Group B.V.

🔷 AAAA Records (IPv6)#

2 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3037::6815:2ee	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:81d1	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 66ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.2.238,172.67.129.209 ech=AEX+DQBBzAAgACCRSl2GarTD7edzme/SRSjBGfCZcUyEhedgk/e1csdNQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:2ee,2606:4700:3037::ac43:81d1

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

latest probe, not this scan · checked 2026-10-07 15:12:44

www	104.21.2.238 172.67.129.209 2606:4700:3036::ac43:81d1 2606:4700:3037::6815:2ee (AS13335) (address records, no CNAME)
www vs bare domain	Same network 2o.dk: 104.21.2.238 172.67.129.209 2606:4700:3036::ac43:81d1 2606:4700:3037::6815:2ee (AS13335) www.2o.dk: 104.21.2.238 172.67.129.209 2606:4700:3036::ac43:81d1 2606:4700:3037::6815:2ee (AS13335)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

1 records 2080ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.exer.dk	DANE-EE · SPKI · SHA-256	59397706616DA37C4D924055C30DFAA3…

🔐 DNSSEC#

194ms

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

🏷️ SOA#

67ms

Field	Value
Serial	2404388923
Primary NS (MNAME)	kate.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 15:24:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-02-19
Expires	2036-02-18 (3410d)

📋 WHOIS#

⏱️ Lookup Timing#

66ms

56ms

63ms

AAAA

56ms

TXT

227ms

CAA

66ms

HTTPS

66ms

TLSA

2080ms

SOA

67ms

MTA-STS

133ms

DNSSEC

194ms

SRV

0ms

Total

3481ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 15:12:44	1550ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-06 15:07:24	2031ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 13:13:33	904ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 16:30:45	856ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 17:19:03	2105ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 05:18:27	905ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-10 13:56:24	4607ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-15 19:23:16	3119ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 12:55:25 shown	3481ms	2 NS 2 A 1 MX	🔓 Insecure