handelsskolensilkeborg.dk DNS records

🖥️ Nameservers3 records 29ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.245	86400s	—	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	handelsskolensilkeborg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::5 2a01:111:f403:ca09::c 2a01:111:f403:ca48::a 52.101.68.10 52.101.68.18 52.101.73.30 52.101.73.6	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am6pr04cu00306.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 45ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	webmail.efif.dk

📝 TXT Records4 records 144ms

TXT Record
0gyeO3SiZ4gh4D8ngau758uAjCMuGVvGGZwlLBmQ5Ras72metZexLsmB62+WtrWD26rQf9A6fgbPvm8zzlm/bg==
Handelsskolen Silkeborg
MS=ms37712184
v=spf1 redirect=_spf.efif.dk

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.handelsskolensilkeborg.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)

🔐 DNSSEC107ms

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

🏷️ SOA0ms

Field	Value
Serial	2012012453
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

29ms

A

40ms

MX

33ms

AAAA

36ms

TXT

144ms

CAA

32ms

HTTPS

41ms

TLSA

367ms

SOA

0ms

MTA-STS

51ms

DNSSEC

107ms

SRV

45ms

Total

933ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 02:34:03	933ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 10:00:32	1656ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 19:53:47	1132ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 17:41:50	3855ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 13:00:27	3368ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 06:20:32	6715ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 06:29:51	5762ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 17:50:26	25797ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-01 16:30:34	9081ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 02:47:43	4085ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 00:07:17	7785ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 23:43:26	3171ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 01:38:51	3979ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 21:14:52	1271ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 19:35:40	1063ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 23:29:13	1423ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 17:51:59	772ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 11:57:51	1316ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 22:50:19	4850ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:39:15	886ms	3 NS 1 A 1 MX	🔒 Secure	View