silkeborg-handelsskole.dk DNS records

🖥️ Nameservers3 records 34ms

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
178.251.4.118	300s	vm0845.enterprisecloud.nu	AS48854	team.blue Denmark A/S	178.251.0.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.efif.dk	195.254.168.32	mail.efif.dk	AS51073 Aarhus Business College

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 90ms

TXT Record
b/HAQ7loVUT/SqYa+493z8ADbZwNcHi6wFpi7ma/1C9oB32ScW85QPIWyf15sfsPm/JNjtazTh7lPD10MwGlCA==
Handelsskolen Silkeborg
MS=ms10982013
MS=ms55154756
v=spf1 redirect=_spf.efif.dk

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.silkeborg-handelsskole.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@efif.dk; rua=mailto:analyze@efif.dk

📬 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)

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2012012431
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

34ms

A

42ms

MX

29ms

AAAA

26ms

TXT

90ms

CAA

24ms

HTTPS

34ms

TLSA

62ms

SOA

0ms

MTA-STS

43ms

DNSSEC

99ms

SRV

37ms

Total

439ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 09:01:59	439ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 15:45:15	773ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 22:26:30	450ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 15:22:24	3053ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 08:30:02	6664ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 08:28:23	770ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 07:16:54	8609ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 02:21:15	3388ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 02:30:29	6995ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 19:47:06	6636ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 19:09:04	6907ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 06:05:41	10410ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 15:57:20	16603ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 21:31:10	621ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 21:50:35	9189ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 21:04:26	2604ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 04:43:19	963ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 19:02:10	481ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 15:55:52	12361ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 21:48:04	12490ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 21:09:38	1022ms	3 NS 1 A 1 MX	🔒 Secure	View