knivkurser.dk

📜 Historical scan 2026-09-17 13:07:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

knivkurser.dk is a .dk domain served by 2 nameservers (aarav.ns.cloudflare.com, addilyn.ns.cloudflare.com). It was registered on 18 August 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.105.224.40 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by knivkurser-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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#

2 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
aarav.ns.cloudflare.com	108.162.195.60 162.159.44.60 172.64.35.60 2606:4700:58::a29f:2c3c 2803:f800:50::6ca2:c33c 2a06:98c1:50::ac40:233c	aarav.ns.cloudflare.com aarav.ns.cloudflare.com aarav.ns.cloudflare.com aarav.ns.cloudflare.com aarav.ns.cloudflare.com aarav.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
addilyn.ns.cloudflare.com	108.162.194.217 162.159.38.217 172.64.34.217 2606:4700:50::a29f:26d9 2803:f800:50::6ca2:c2d9 2a06:98c1:50::ac40:22d9	addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.105.224.40	300s	—	AS8075	Microsoft Corporation	20.64.0.0/10	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	knivkurser-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca09::24 2a01:111:f403:ca3c::6 2a01:111:f403:ca3c::8 52.101.103.137 52.101.103.39 52.101.68.39 52.101.91.21	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-matpr05cu00105.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	104.21.31.117

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 187ms

TXT Record
v=spf1 ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (knivkurser.dk)
-all (hard fail)	v=spf1 ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 include:spf.protection.outlook.com -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 2026-10-11 21:34:51

www	104.21.31.117 172.67.176.124 2606:4700:3032::ac43:b07c 2606:4700:3033::6815:1f75 (AS13335) (address records, no CNAME)
www vs bare domain	Different networks knivkurser.dk: 20.105.224.40 (AS8075) www.knivkurser.dk: 104.21.31.117 172.67.176.124 2606:4700:3032::ac43:b07c 2606:4700:3033::6815:1f75 (AS13335) (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.knivkurser.dk	E6vCChiLikG55bO0AuD8mKhouZakd0m1uRH3rZwUasQ
TXT	_acme-challenge.knivkurser.dk	ged8HcHkBe-JuP7EmnwXzxZKVyKhoa0yhCpkEDUNMcg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414999139
Primary NS (MNAME)	aarav.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 14:41:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-08-18
Expires	2027-08-31 (314d)

🔗 Same registrant#

12 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
din-fritid.dk	Punktum dk A/S (direct)
faellesfritid.dk	Punktum dk A/S (direct)
fagkursus.dk	Punktum dk A/S (direct)
fo.dk	Punktum dk A/S (direct)
fora.dk	Punktum dk A/S (direct)
frederikshavnvaevestue.dk	Punktum dk A/S (direct)
koenghusflid.dk	Punktum dk A/S (direct)
kreativevendelboere.dk	Punktum dk A/S (direct)
oplysningsforbund.dk	Punktum dk A/S (direct)
seniorhojskolenmidtfyn.dk	Punktum dk A/S (direct)
seniorhøjskolenmidtfyn.dk	Punktum dk A/S (direct)
vaevekurser.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

38ms

43ms

AAAA

43ms

TXT

187ms

CAA

38ms

HTTPS

39ms

TLSA

429ms

SOA

0ms

MTA-STS

73ms

DNSSEC

120ms

SRV

67ms

Total

1104ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 08:27:33	1571ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 08:16:01	795ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 16:10:04	2148ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 00:09:30	1189ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 13:07:00 shown	1104ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 15:47:53	891ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 01:12:42	2542ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 14:18:43	1281ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-02 16:19:05	17338ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 23:30:09	1261ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 20:38:43	1661ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 16:28:20	1509ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 02:26:18	3436ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:30:51	1292ms	2 NS 1 A 1 MX	🔒 Secure