heldagsskolen-laerkeskolen.dk DNS records

🖥️ Nameservers4 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.249	600s	vps.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records2 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	heldagsskolenlaerkeskolen-dk03c.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::9 2a01:111:f403:ca09::20 2a01:111:f403:ca09::3 52.101.181.153 52.101.68.25 52.101.73.22 52.101.91.153	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-matpr04cu00101.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
10	3600s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 66ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records2 records 150ms

TXT Record
MS=ms13105007
v=spf1 +a +mx +ip4:178.20.217.249 include:spf.curanet.dk include:spf.simply.com include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (heldagsskolen-laerkeskolen.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:178.20.217.249 include:spf.curanet.dk include:spf.simply.com 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 / DANE2 records 817ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC78ms

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

🏷️ SOA0ms

Field	Value
Serial	2025042300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

43ms

MX

50ms

AAAA

39ms

TXT

150ms

CAA

57ms

HTTPS

60ms

TLSA

817ms

SOA

0ms

MTA-STS

50ms

DNSSEC

78ms

SRV

66ms

Total

1456ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 08:55:18	1456ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-23 01:18:52	1084ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-21 09:04:43	1123ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-20 22:10:21	1146ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:21:32	1031ms	4 NS 1 A 2 MX	⚠️ Bogus	View
2026-06-17 11:15:07	1147ms	4 NS 1 A 2 MX	🔒 Secure	View