31holding.dk DNS records

🖥️ Nameservers2 records 187ms

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 220ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.156	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 229ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	31holding-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::2 2a01:111:f403:ca09::b 2a01:111:f403:ca09::e 52.101.68.3 52.101.68.8 52.101.73.1 52.101.73.11	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.104.116.8
🔶 Autoconfig	46.30.213.156

🔷 AAAA Records (IPv6)1 records 210ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:e0:90de:6ad:de24	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 448ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (31holding.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 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

🔗 TLSA / DANE

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

🔐 DNSSEC384ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081205
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

187ms

A

220ms

MX

229ms

AAAA

210ms

TXT

448ms

CAA

182ms

HTTPS

183ms

TLSA

1097ms

SOA

0ms

MTA-STS

276ms

DNSSEC

384ms

SRV

315ms

Total

4072ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 19:21:49	4072ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 04:12:31	778ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 20:50:01	1636ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 19:26:32	1136ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 20:46:22	715ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:36:51	2649ms	2 NS 1 A 1 MX	🔒 Secure	View