opendoors.dk

📜 Historical scan 2026-09-08 23:05:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opendoors.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 August 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.4.18.84 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by opendoors-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#

2 records 39ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.4.18.84	600s	server5.designrus.dk	AS24940	Hetzner Online GmbH	46.4.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	opendoors-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::26 2a01:111:f403:ca09::4 2a01:111:f403:ca09::9 52.101.181.153 52.101.68.32 52.101.73.1 52.101.91.159	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-matpr04cu00207.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 → 40.104.116.24
🔶 Autoconfig	46.4.18.84

🔷 AAAA Records (IPv6)#

1 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:221:3960::2	600s	—	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 162ms

TXT Record
MS=ms30422807
v=spf1 mx ip4:212.45.53.35 ip4:185.163.189.20 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.designrus.dk include:_spf_eucentral1.prod.hydra.sophos.com ~all

✉️ SPF#

Policy	Record (opendoors.dk)
~all (soft fail)	v=spf1 mx ip4:212.45.53.35 ip4:185.163.189.20 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.designrus.dk include:_spf_eucentral1.prod.hydra.sophos.com ~all

📨 DMARC#

Policy	Record (_dmarc.opendoors.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:admin@opendoors.dk;

📬 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 10:55:27

www	46.4.18.84 2a01:4f8:221:3960::2 (AS24940) (address records, no CNAME)
www vs bare domain	Same network opendoors.dk: 46.4.18.84 2a01:4f8:221:3960::2 (AS24940) www.opendoors.dk: 46.4.18.84 2a01:4f8:221:3960::2 (AS24940)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090601
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-25 09:01:56

Field	Value
Registrar	ONE.COM A/S
Registered	2016-08-26
Expires	2027-08-31 (308d)

🔗 Same registrant#

2 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
prayfor.dk	Punktum dk A/S (direct)
åbnedøre.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

30ms

36ms

AAAA

33ms

TXT

162ms

CAA

33ms

HTTPS

31ms

TLSA

408ms

SOA

0ms

MTA-STS

54ms

DNSSEC

120ms

SRV

80ms

Total

1087ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 10:55:27	1498ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:45:57	1172ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 08:00:20	741ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 23:05:11 shown	1087ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 12:27:10	935ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-08 11:09:25	9340ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-08 19:32:54	8931ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 04:16:18	1776ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 23:49:46	770ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 10:35:20	923ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 23:14:30	839ms	2 NS 1 A 1 MX	🔒 Secure