silkeborg-gym.dk

📜 Historical scan 2026-07-28 03:30:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

silkeborg-gym.dk is a .dk domain served by 3 nameservers (mimer.deic.dk, ns-soa.darenet.dk, orion.i2.dk). It was registered on 7 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.127 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by silkeborggym-dk02c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 85ms

Nameserver	IP addresses	PTR	ASN / ISP
mimer.deic.dk	2001:87f:ff27:65::66 95.128.27.66	mimer.deic.dk mimer.deic.dk	AS198455 Danmarks Tekniske Universitet AS198455 Danmarks Tekniske Universitet
ns-soa.darenet.dk	130.226.179.50 2001:878:0:e000:82:e2:b3:32	ns-soa.darenet.dk ns-soa.darenet.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
orion.i2.dk	78.153.182.90	orion.i2.dk	AS31027 GlobalConnect A/S

🌍 A Records#

2 records 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.127	21600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.0.125	21600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records#

1 records 98ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	silkeborggym-dk02c.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::b 52.101.68.0 52.101.68.32 52.101.73.11 52.101.73.8	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am0pr04cu00500.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.62.200

🔷 AAAA Records (IPv6)#

2 records 87ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:7::7d	21600s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2a06:98c1:58::7d	21600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:58:0:0:0:0:0/47	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 276ms

TXT Record
inst=Silkeborg Amtsgymnasium
MS=ms35258811
SOA=1763366826
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (silkeborg-gym.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.silkeborg-gym.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:teamsadmin@sg.dk; ruf=mailto:teamsadmin@sg.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 2026-10-24 02:52:24

www	94.231.109.6 (AS48854) (address records, no CNAME)
www vs bare domain	Same network silkeborg-gym.dk: 94.231.109.6 (AS48854) www.silkeborg-gym.dk: 94.231.109.6 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-silkeborggym-dk02c._domainkey.silkeborggymnasium537.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-silkeborggym-dk02c._domainkey.silkeborggymnasium537.onmicrosoft.com	RSA · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

216ms

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

🏷️ SOA#

0ms

Field	Value
Serial	1785197535
Primary NS (MNAME)	mimer.deic.dk
Responsible (RNAME)	dns@support.i2.dk
Refresh	16384s
Retry	2048s
Expire	2097152s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-21 09:33:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-11-07
Expires	2026-12-31 (67d)

🔗 Same registrant#

11 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
faglige-overgange.dk	Punktum dk A/S (direct)
gymnasiet.dk	Punktum dk A/S (direct)
klima-paa-tvaers.dk	Punktum dk A/S (direct)
klima-på-tværs.dk	Punktum dk A/S (direct)
litteraturenikroppen.dk	Punktum dk A/S (direct)
masterclass-fysik-kemi.dk	Punktum dk A/S (direct)
mat-silkeborg.dk	Punktum dk A/S (direct)
matbid.dk	Punktum dk A/S (direct)
matematikbroen.dk	Punktum dk A/S (direct)
sg.dk	Punktum dk A/S (direct)
silkeborggymnasium.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

85ms

83ms

98ms

AAAA

87ms

TXT

276ms

CAA

100ms

HTTPS

83ms

TLSA

191ms

SOA

0ms

MTA-STS

133ms

DNSSEC

216ms

SRV

8075ms

Total

17131ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 02:52:23	1294ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-22 12:37:30	1351ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-21 08:56:11	1408ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-19 19:25:31	1206ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-17 15:59:36	932ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-16 15:48:06	2351ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-15 15:19:53	1729ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 14:07:06	1261ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-13 13:53:42	1112ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-11 12:45:16	1980ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 12:11:52	1087ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 08:11:39	1641ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 08:08:17	1402ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 08:06:14	3272ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 16:42:52	2487ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 16:36:46	958ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 16:35:16	1337ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 16:31:55	2463ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:49:57	2033ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-28 15:34:23	1386ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 15:24:42	1243ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 15:16:30	2085ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-25 15:00:05	5698ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:26:28	2120ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-22 07:58:06	711ms	3 NS 1 A 1 MX	🔒 Secure