gustavnielsen.dk DNS records

🖥️ Nameservers2 records 201ms

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 183ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	gustavnielsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09::2 2a01:111:f403:ca09::9 2a01:111:f403:ca48::c 52.101.68.15 52.101.73.26 52.101.73.30 52.101.73.8	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr04cu00500.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 563ms

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

✉️ SPF

Policy	Record (gustavnielsen.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.gustavnielsen.dk	gustavnielsen.dk.kinstavalidation.app

🔗 TLSA / DANE

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

🔐 DNSSEC356ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083003
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

201ms

A

183ms

MX

74ms

AAAA

86ms

TXT

563ms

CAA

213ms

HTTPS

238ms

TLSA

871ms

SOA

0ms

MTA-STS

243ms

DNSSEC

356ms

SRV

216ms

Total

2473ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 19:41:25	2473ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-29 13:42:12	1710ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 13:07:50	1864ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 12:08:45	892ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 01:27:34	874ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 00:22:13	8775ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 20:13:45	4550ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 20:05:01	6762ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 20:01:06	4450ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 19:51:02	2116ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 19:01:40	1638ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 18:53:18	1187ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 07:17:32	2845ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 01:30:08	4203ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 12:01:05	17002ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 10:30:55	1215ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 10:00:02	4960ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 07:23:01	3508ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 23:50:00	4558ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 17:35:11	1133ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 23:26:21	1167ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 17:52:25	1952ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 16:33:56	1130ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 16:08:59	9346ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 15:33:12	9112ms	2 NS 1 A 1 MX	🔒 Secure	View