onlineskolen.dk DNS records

🖥️ Nameservers3 records 25ms

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 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.254.168.193	3600s	—	AS51073	Aarhus Business College	195.254.168.0/23	🇩🇰 Denmark	Højbjerg

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 82ms

TXT Record
@ventures

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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)

🔐 DNSSEC100ms

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

🏷️ SOA0ms

Field	Value
Serial	2011070606
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

25ms

A

27ms

MX

19ms

AAAA

24ms

TXT

82ms

CAA

27ms

HTTPS

25ms

TLSA

64ms

SOA

0ms

MTA-STS

31ms

DNSSEC

100ms

SRV

38ms

Total

446ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 00:45:45	446ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-30 16:33:06	1950ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-26 22:19:22	411ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-24 22:19:30	2463ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-18 20:20:27	5527ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-12 17:26:04	3688ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-09 18:14:01	3833ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-08 01:19:28	4519ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-08-01 21:10:03	4615ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-26 16:55:07	2420ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-24 16:08:52	2301ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-21 04:28:12	11924ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-16 20:05:20	5381ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-11 10:14:25	1009ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-07 03:43:50	1014ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-07-04 21:32:13	4684ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-30 03:26:08	497ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-24 12:27:46	593ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-23 22:07:10	2460ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-23 18:29:40	1166ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 07:05:14	577ms	3 NS 1 A 0 MX	⚠️ Bogus	View
2026-06-22 21:17:40	906ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 04:15:55	4421ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-18 05:09:48	650ms	3 NS 1 A 0 MX	🔒 Secure	View