skolenfor.dk

📜 Historical scan 2026-08-22 13:03:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

skolenfor.dk is a .dk domain served by 2 nameservers (kip.ns.cloudflare.com, serena.ns.cloudflare.com). It was registered on 26 September 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.120 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by skolenfor-dk.mail.eo.outlook.com. The zone is not DNSSEC-signed, has no 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#

2 records 8081ms

Nameserver	IP addresses	PTR	ASN / ISP
kip.ns.cloudflare.com	108.162.193.128 172.64.33.128 173.245.59.128 2606:4700:58::adf5:3b80 2803:f800:50::6ca2:c180 2a06:98c1:50::ac40:2180	kip.ns.cloudflare.com kip.ns.cloudflare.com kip.ns.cloudflare.com kip.ns.cloudflare.com kip.ns.cloudflare.com kip.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
serena.ns.cloudflare.com	108.162.192.220 172.64.32.220 173.245.58.220 2606:4700:50::adf5:3adc 2803:f800:50::6ca2:c0dc 2a06:98c1:50::ac40:20dc	serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 8055ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.51.120	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.44	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	skolenfor-dk.mail.eo.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::c 2a01:111:f403:ca09::1 2a01:111:f403:ca09::e 52.101.68.12 52.101.68.29 52.101.73.24 52.101.73.26	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

2 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:3378	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:b42c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.51.120,172.67.180.44 ech=AEX+DQBBaAAgACCtdb9G/bCrR6OB9U1AX30vvls0jLVIxTivHUN5Z7HKCwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3378,2606:4700:3036::ac43:b42c

📝 TXT Records#

1 records 199ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:_spf.e-studio.dk -all

✉️ SPF#

Policy	Record (skolenfor.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.e-studio.dk -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-25 11:37:54

www	104.21.51.120 172.67.180.44 2606:4700:3033::6815:3378 2606:4700:3036::ac43:b42c (AS13335) (address records, no CNAME)
www vs bare domain	Same network skolenfor.dk: 104.21.51.120 172.67.180.44 2606:4700:3033::6815:3378 2606:4700:3036::ac43:b42c (AS13335) www.skolenfor.dk: 104.21.51.120 172.67.180.44 2606:4700:3033::6815:3378 2606:4700:3036::ac43:b42c (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.skolenfor.dk	0VzNEph7Gtqz2stvsS9xn24pnEOMgAq7N8izG5MThRE
TXT	_acme-challenge.skolenfor.dk	Dv5Wo6pvH6nw4MbxkCqqbH61EyXKJNDB6Y8akPoGPAQ
TXT	_acme-challenge.skolenfor.dk	m8BM3ZqagCKGlOFhOBghVGe_Sz7UdGsqoQXBmCsRJcw

🔗 TLSA / DANE#

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

🔐 DNSSEC#

8101ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

63ms

Field	Value
Serial	2412728351
Primary NS (MNAME)	kip.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-25 12:11:50

Field	Value
Registrar	CURANET A/S
Registered	2002-09-26
Expires	2027-09-30 (339d)

🔗 Same registrant#

1 domain

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
efterskolenfor.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

8081ms

8055ms

68ms

AAAA

60ms

TXT

199ms

CAA

8081ms

HTTPS

55ms

TLSA

2065ms

SOA

63ms

MTA-STS

144ms

DNSSEC

8101ms

SRV

103ms

Total

27966ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 11:37:54	493ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 08:02:49	964ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-02 08:00:37	837ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-21 23:25:21	1169ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 07:16:27	7882ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 13:18:21	7126ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 10:16:19	5107ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-23 14:28:21	8682ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 13:03:17 shown	27966ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 12:51:56	2657ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 02:50:11	14402ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-04 22:30:45	5211ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 17:38:48	6397ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 17:22:09	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 16:26:04	5003ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 05:35:15	4573ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 15:06:04	1146ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 03:42:04	4892ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 01:21:48	1363ms	2 NS 1 A 1 MX	🔓 Insecure