ohn.dk

📜 Historical scan 2026-09-29 16:24:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ohn.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.237 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by ohn-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

2 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.237	3600s	linux31.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ohn-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca09::20 2a01:111:f403:ca21::e 2a01:111:f403:ca48::10 52.101.103.39 52.101.68.10 52.101.68.8 52.101.73.120	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr02cu00300.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
🔶 Autoconfig	185.21.41.237

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 132ms

TXT Record
MS=ms38501555
v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.ohn.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:wordpress@ohn.dk; ruf=mailto:wordpress@ohn.dk; fo=1

📬 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 22:05:12

www	185.21.41.237 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ohn.dk: 185.21.41.237 (AS48854) www.ohn.dk: 185.21.41.237 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
s1	—	RSA · ~1024 bit below 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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

67ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2023112701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

57ms

44ms

49ms

AAAA

43ms

TXT

132ms

CAA

33ms

HTTPS

42ms

TLSA

307ms

SOA

0ms

MTA-STS

61ms

DNSSEC

67ms

SRV

62ms

Total

703ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 08:51:15	656ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:24:31 shown	703ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 21:50:34	1096ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 02:32:19	1479ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 13:16:03	833ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 00:30:37	583ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:18:36	1852ms	2 NS 1 A 1 MX	🔒 Secure