yderbyskolen.dk DNS records

🖥️ Nameservers2 records 68ms

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 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.148	3600s	webcluster1.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	yderbyskolen-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04:: 2a01:111:f403:ca04::9 2a01:111:f403:ca38::8 52.101.181.153 52.101.68.15 52.101.68.8 52.101.73.145	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.56
🔶 Autoconfig	46.30.215.148

🔷 AAAA Records (IPv6)1 records 54ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:a5:93f7:54cd:8889	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 Records2 records 220ms

TXT Record
MS=ms17519698
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (yderbyskolen.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)

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081505
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

68ms

A

63ms

MX

60ms

AAAA

54ms

TXT

220ms

CAA

76ms

HTTPS

73ms

TLSA

367ms

SOA

0ms

MTA-STS

97ms

DNSSEC

98ms

SRV

93ms

Total

1270ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 10:19:07	1270ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 11:34:48	2791ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 20:36:40	1341ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 17:39:46	1465ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 12:20:08	1291ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:07:35	878ms	2 NS 1 A 1 MX	🔒 Secure	View