opstaal.dk DNS records

🖥️ Nameservers2 records 47ms

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
162.159.135.42	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	opstaal-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::a 2a01:111:f403:ca21::e 2a01:111:f403:ca3c::8 52.101.103.140 52.101.103.39 52.101.68.21 52.101.73.15	mail-db5pr02cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am9pr04cu00107.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	162.159.135.42

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 65ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 189ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.opstaal.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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.opstaal.dk	opstaal.dk.kinstavalidation.app

🔗 TLSA / DANE

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

🔐 DNSSEC114ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090502
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-08-30 16:13:12

Field	Value
Registrar	ONE.COM A/S
Registered	2001-10-08
Expires	2026-12-31 (115d)

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

42ms

MX

37ms

AAAA

36ms

TXT

189ms

CAA

43ms

HTTPS

30ms

TLSA

299ms

SOA

0ms

MTA-STS

56ms

DNSSEC

114ms

SRV

65ms

Total

893ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 15:55:29	893ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-30 16:12:48	1267ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 19:29:47	1059ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 17:52:41	1255ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 21:37:59	1000ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 19:21:16	2134ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 16:30:37	8931ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 16:14:06	1997ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 15:35:29	3067ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 15:33:41	2044ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 15:13:59	8419ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 14:49:52	2966ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 14:47:09	1962ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 06:19:55	4057ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 16:44:59	4003ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 15:16:36	2020ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 04:36:55	4327ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 03:38:58	5438ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 08:14:50	1815ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 10:56:21	2155ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-29 03:47:40	3561ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 10:27:36	1345ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 10:02:52	3795ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 09:57:54	1172ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 09:51:04	1180ms	2 NS 1 A 1 MX	🔒 Secure	View