openion.dk

📜 Historical scan 2026-09-25 18:24:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

openion.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.202 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by openion.dk. The zone is DNSSEC-signed and validates, has no 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#

2 records 36ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.221.196.202	600s	—	AS51468	One.com A/S	91.221.196.0/23	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	openion.dk	91.221.196.202	—	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	openion.dk → 91.221.196.202
🔶 Autoconfig	openion.dk → 91.221.196.202

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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 2026-10-13 06:20:39

www CNAME	openion.dk (all on openion.dk) → 91.221.196.202 (AS51468)
www vs bare domain	Same network openion.dk: 91.221.196.202 (AS51468) www.openion.dk: 91.221.196.202 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.openion.dk	openion.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2063ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

36ms

46ms

47ms

AAAA

46ms

TXT

164ms

CAA

35ms

HTTPS

42ms

TLSA

49ms

SOA

0ms

MTA-STS

61ms

DNSSEC

2063ms

SRV

117ms

Total

2487ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:20:39	680ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 07:20:18	545ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 19:59:46	619ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 18:24:46 shown	2487ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 21:10:25	870ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 09:49:58	838ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 07:09:43	895ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-16 09:53:43	739ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 19:37:12	658ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:31:01	2719ms	2 NS 1 A 1 MX	🔒 Secure