hayskolen.dk DNS records

🖥️ Nameservers2 records 223ms

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 266ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.13	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 263ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	46.30.213.13
🔶 Autoconfig	46.30.213.13

🔷 AAAA Records (IPv6)1 records 251ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:6b:8872:7db6:3a28	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 499ms

TXT Record
v=spf1 include:_custspf.one.com ip4:93.90.117.0/24 ~all
v=spf1 mx a include:web.shared.mysmtp.com ip4:89.221.167.1/24 ~all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (hayskolen.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ip4:93.90.117.0/24 ~all
~all (soft fail)	v=spf1 mx a include:web.shared.mysmtp.com ip4:89.221.167.1/24 ~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 / DANE4 records 503ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…

🔐 DNSSEC389ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081705
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

223ms

A

266ms

MX

263ms

AAAA

251ms

TXT

499ms

CAA

228ms

HTTPS

229ms

TLSA

503ms

SOA

0ms

MTA-STS

290ms

DNSSEC

389ms

SRV

267ms

Total

3470ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-19 05:04:59	3470ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 08:09:40	1835ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 04:00:47	667ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 17:14:40	1711ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 11:56:34	1680ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 01:37:06	1168ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 03:33:15	9316ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-21 15:28:14	964ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:08:53	835ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 11:05:36	5329ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 10:56:15	803ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 10:56:10	1438ms	2 NS 1 A 4 MX	🔒 Secure	View