5skoler.dk DNS records

🖥️ Nameservers2 records 45ms

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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.50.2.64	3600s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	5skoler-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::d 2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 52.101.68.15 52.101.73.1 52.101.73.19 52.101.73.6	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am6pr04cu00306.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 Records2 records 206ms

TXT Record
MS=ms69862246
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (5skoler.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)

🔐 DNSSEC9073ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA29ms

Field	Value
Serial	2026071202
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

45ms

A

50ms

MX

43ms

AAAA

48ms

TXT

206ms

CAA

54ms

HTTPS

59ms

TLSA

313ms

SOA

29ms

MTA-STS

66ms

DNSSEC

9073ms

SRV

70ms

Total

14214ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 08:27:13	14214ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-15 09:04:36	8896ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-12 06:19:44	16974ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 07:41:56	1688ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 07:23:13	1180ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 13:14:11	1795ms	2 NS 1 A 1 MX	🔓 Insecure	View