arkcph.dk DNS records

🖥️ Nameservers2 records 43ms

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 Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	3600s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	arkcph-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca09::24 52.101.68.0 52.101.68.36 52.101.73.22 52.101.73.30	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00306.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	46.30.215.110

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 222ms

TXT Record
MS=ms23181689
v=spf1 include:spf.protection.outlook.com include:dedicated.mysmtp.com -all

✉️ SPF

Policy	Record (arkcph.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:dedicated.mysmtp.com -all

📨 DMARC

Policy	Record (_dmarc.arkcph.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:rua@arkcph.dk; ruf=mailto:ruf@arkcph.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

🔗 TLSA / DANE

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

🔐 DNSSEC65ms

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

🏷️ SOA0ms

Field	Value
Serial	2026072405
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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

43ms

A

42ms

MX

46ms

AAAA

47ms

TXT

222ms

CAA

58ms

HTTPS

67ms

TLSA

371ms

SOA

0ms

MTA-STS

72ms

DNSSEC

65ms

SRV

81ms

Total

995ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 12:05:29	995ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 17:04:25	1896ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 16:03:28	3154ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 17:10:00	1442ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 06:51:40	4340ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:58:56	1574ms	2 NS 1 A 1 MX	🔒 Secure	View