colearning.dk DNS records

🖥️ Nameservers3 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.254.168.52	3600s	cphbusiness.dk ek.dk keanet.dk kompetence.kea.dk redirect.efif.dk	AS51073	Aarhus Business College	195.254.168.0/23	🇩🇰 Denmark	Højbjerg

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	colearning-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 52.101.103.137 52.101.68.16 52.101.73.15 52.101.73.30	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00306.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 88ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	webmail.efif.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records4 records 245ms

TXT Record
C21851V9y249hD0VP36ppJB4YDTpIR5Y6Uoj94KzZSjhrEHxR6U/fHaq70Cu4ZsHPYOrfGJDlO6o/RmFjq+oZw==
Frederikshavn Handelsskole
MS=ms50916315
v=spf1 redirect=_spf.efif.dk

✉️ SPF

Policy	Record (colearning.dk)
no all — incomplete SPF	v=spf1 redirect=_spf.efif.dk

📨 DMARC

Policy	Record (_dmarc.colearning.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@efif.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 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)

🔐 DNSSEC121ms

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

🏷️ SOA0ms

Field	Value
Serial	2016011018
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

48ms

A

42ms

MX

38ms

AAAA

42ms

TXT

245ms

CAA

42ms

HTTPS

43ms

TLSA

361ms

SOA

0ms

MTA-STS

71ms

DNSSEC

121ms

SRV

88ms

Total

1037ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:47:08	1037ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 14:07:38	25616ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 08:03:00	7760ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 19:23:22	5466ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 00:15:38	9123ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 17:13:13	2769ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-04 07:01:11	7379ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 00:13:41	5049ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 20:49:44	5516ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 17:36:31	10259ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 11:39:02	14815ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 08:51:44	19214ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 22:39:51	1151ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 13:30:39	1410ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 09:29:38	1476ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 20:29:24	3308ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 21:12:38	845ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:24:20	3535ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 15:54:52	1442ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 05:00:38	3039ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:45:47	841ms	3 NS 1 A 1 MX	🔒 Secure	View