silkehs.dk

📜 Historical scan 2026-07-24 16:51:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

silkehs.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 4 July 1995 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.251.4.118 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by silkehs-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 111ms

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 Records#

1 records 56ms

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 Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	silkehs-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 2a01:111:f403:ca09::c 52.101.68.15 52.101.68.18 52.101.68.29 52.101.68.3	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.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 Records#

1 records 138ms

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

📝 TXT Records#

4 records 10586ms

TXT Record
Handelsskolen Silkeborg
hz3HfeWoNGSnHZyqYfn5bZuZeTsa29IPC08fAymOT7HN+8t0rVmqicDbf+WxiiVz90olIhnmmsCHSEPQkBsLrw==
MS=ms66707730
v=spf1 redirect=_spf.efif.dk

✉️ SPF#

Policy	Record (silkehs.dk)
redirect=_spf.efif.dk	v=spf1 redirect=_spf.efif.dk

📨 DMARC#

Policy	Record (_dmarc.silkehs.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 08:55:23

www	178.251.4.118 (AS48854) (address records, no CNAME)
www vs bare domain	Same network silkehs.dk: 178.251.4.118 (AS48854) www.silkehs.dk: 178.251.4.118 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-silkehs-dk._domainkey.efif.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-silkehs-dk._domainkey.efif.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

153ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2012012433
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-16 09:34:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1995-07-04
Expires	2027-09-30 (348d)

🔗 Same registrant#

10 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
c360.dk	Punktum dk A/S (direct)
college360.dk	Punktum dk A/S (direct)
handelsskolen-silkeborg.dk	Punktum dk A/S (direct)
handelsskolensilkeborg.dk	Punktum dk A/S (direct)
hssilkeborg.dk	Punktum dk A/S (direct)
kursuscenteret.dk	Punktum dk A/S (direct)
piu-sekretariatet.dk	Punktum dk A/S (direct)
piu.dk	Punktum dk A/S (direct)
silkeborg-handelsskole.dk	Punktum dk A/S (direct)
silkeborghs.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

111ms

56ms

80ms

AAAA

53ms

TXT

10586ms

CAA

79ms

HTTPS

70ms

TLSA

1137ms

SOA

0ms

MTA-STS

142ms

DNSSEC

153ms

SRV

138ms

Total

14028ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 08:55:23	2505ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 05:23:46	3699ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 21:47:46	1471ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 21:41:59	1269ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 16:48:23	1996ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:26:59	1952ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 16:08:20	2143ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-25 15:43:25	9625ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 05:52:12	2634ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-17 13:05:57	1636ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-10 11:20:05	4274ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-05 04:27:35	845ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-04 00:53:33	3126ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-31 19:37:30	1804ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:41:58	1688ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 15:42:44	1292ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-25 02:06:08	10584ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 21:13:50	10989ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-13 11:08:42	6467ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-10 10:20:16	3521ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-06 22:10:10	7059ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-27 18:26:52	5756ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-26 17:21:35	5228ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-24 16:51:36 shown	14028ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-22 03:34:24	3857ms	3 NS 1 A 1 MX	🔒 Secure