handelsskolen-silkeborg.dk DNS records

🖥️ Nameservers3 records 39ms

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 49ms

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 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	handelsskolensilkeborg-dk03c.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::f 2a01:111:f403:ca21::8 2a01:111:f403:ca3c::6 52.101.181.156 52.101.68.27 52.101.73.123 52.101.73.15	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am9pr04cu00107.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 56ms

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

📝 TXT Records4 records 139ms

TXT Record
2MGV3soHdpzy9J+j827KnstBM0aZ4dold4mO80LG3gQbLHMtsfl05JWBYxWyowss+efxT2ZAvm2hjhdpMk8ENA==
Handelsskolen Silkeborg
MS=ms19778367
v=spf1 redirect=_spf.efif.dk

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.handelsskolen-silkeborg.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)

🔐 DNSSEC81ms

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

🏷️ SOA0ms

Field	Value
Serial	2012012458
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

39ms

A

49ms

MX

46ms

AAAA

36ms

TXT

139ms

CAA

38ms

HTTPS

36ms

TLSA

176ms

SOA

0ms

MTA-STS

67ms

DNSSEC

81ms

SRV

56ms

Total

695ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 16:56:29	695ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-31 02:11:34	1419ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 23:17:36	1152ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 04:12:03	769ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 21:17:57	5143ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 19:28:45	2410ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 10:10:08	6592ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 02:14:02	5969ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 21:57:46	7410ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 02:20:10	1345ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 00:13:42	1580ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 23:41:47	3221ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 08:49:15	2924ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 22:47:11	2280ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 15:02:29	1537ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 20:45:24	1514ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 09:40:46	3755ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 00:26:21	885ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 20:06:36	805ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 19:57:04	758ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 10:23:24	1023ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 13:47:42	731ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 22:15:47	3031ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:41:14	4906ms	3 NS 1 A 1 MX	🔒 Secure	View