lærerskolen.dk DNS records

🖥️ Nameservers4 records 58ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 255ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.65	3600s	vm1379.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	xnlrerskolend6a-dk0m2e.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 2a01:111:f403:ca09::e 52.101.68.25 52.101.68.39 52.101.73.12 52.101.73.26	mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as9pr05cu01302.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 350ms

TXT Record
mscid=4Dp/CU/nSOqmdFeuJMEAACrzKUNhvQK2jzLg/32+1r3DB69umnV4VXvvnpiZx8A6M3tUYXhf46M69803LFdW1A==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (lærerskolen.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)

🔐 DNSSEC154ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'l\195\166rerskolen.dk/A/IN': 127.0.0.1#53

🏷️ SOA58ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

58ms

A

255ms

MX

58ms

AAAA

164ms

TXT

350ms

CAA

181ms

HTTPS

58ms

TLSA

437ms

SOA

58ms

MTA-STS

167ms

DNSSEC

154ms

SRV

246ms

Total

1299ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-24 05:13:54	1299ms	4 NS 1 A 1 MX	❓ Unknown	View
2026-06-20 05:09:22	2406ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 04:04:18	353ms	0 NS 0 A 0 MX	🔒 Secure	View
2026-06-18 03:10:48	3466ms	4 NS 1 A 1 MX	🔒 Secure	View