ckr.dk

📜 Historical scan 2026-09-16 19:43:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ckr.dk is a .dk domain served by 2 nameservers (clarissa.ns.cloudflare.com, kirk.ns.cloudflare.com). It was registered on 17 July 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.7.254 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by ckr-dk.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#

2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
clarissa.ns.cloudflare.com	108.162.194.123 162.159.38.123 172.64.34.123 2606:4700:50::a29f:267b 2803:f800:50::6ca2:c27b 2a06:98c1:50::ac40:227b	clarissa.ns.cloudflare.com clarissa.ns.cloudflare.com clarissa.ns.cloudflare.com clarissa.ns.cloudflare.com clarissa.ns.cloudflare.com clarissa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kirk.ns.cloudflare.com	108.162.193.192 172.64.33.192 173.245.59.192 2606:4700:58::adf5:3bc0 2803:f800:50::6ca2:c1c0 2a06:98c1:50::ac40:21c0	kirk.ns.cloudflare.com kirk.ns.cloudflare.com kirk.ns.cloudflare.com kirk.ns.cloudflare.com kirk.ns.cloudflare.com kirk.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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.7.254	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.156.146	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	ckr-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca38::8 2a01:111:f403:ca3c::a 2a01:111:f403:ca48::10 52.101.103.137 52.101.68.25 52.101.68.27 52.101.73.123	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:9c92	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:7fe	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.7.254,172.67.156.146 ech=AEX+DQBBXgAgACBVSpJUl9Ec7EOw0KfFoUxy3TVZg/lxh6txjAhqV+LTIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9c92,2606:4700:3034::6815:7fe

📝 TXT Records#

3 records 209ms

TXT Record
brevo-code:b5a27f221cd8f0bd077aa7c279c370af
google-site-verification=zRjtW93xOy3DOLCYCRMBWntatVnRdX_ouNOvHWxgk0c
v=spf1 include:spf.protection.outlook.com include:spf.brevo.com ~all

✉️ SPF#

Policy	Record (ckr.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.brevo.com ~all

📨 DMARC#

Policy	Record (_dmarc.ckr.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-14 23:30:43

www	Exists, no address
www vs bare domain	www does not resolve ckr.dk: 104.21.7.254 172.67.156.146 2606:4700:3030::ac43:9c92 2606:4700:3034::6815:7fe (AS13335) www.ckr.dk: no address (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: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ckr.dk	o54i3ltfI1JqPt1pDb2J438JslbTw-NACR1ac6ZW0HE

🔗 TLSA / DANE#

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

🔐 DNSSEC#

64ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415051578
Primary NS (MNAME)	clarissa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 17:09:57

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-07-17
Expires	2027-07-31 (285d)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

38ms

43ms

AAAA

39ms

TXT

209ms

CAA

34ms

HTTPS

48ms

TLSA

429ms

SOA

0ms

MTA-STS

60ms

DNSSEC

64ms

SRV

77ms

Total

1043ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 23:30:43	1293ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-12 20:59:17	1776ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-11 19:26:55	2480ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-10 16:54:52	5576ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-16 19:43:14 shown	1043ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-14 11:49:48	1820ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-07 10:24:41	2657ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-29 01:11:52	1460ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-24 13:28:22	1591ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-17 16:54:16	1729ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-06 15:08:01	1804ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-16 11:54:49	1576ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-08 11:23:34	2150ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-04 19:45:39	2190ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-30 12:43:38	1025ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-22 00:17:42	1481ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 23:11:20	65535ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:10:48	2096ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:07:55	565ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:01:20	756ms	2 NS 2 A 1 MX	🔒 Secure