jkoffice.dk

📜 Historical scan 2026-08-25 16:22:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jkoffice.dk is a .dk domain served by 2 nameservers (brodie.ns.cloudflare.com, oaklyn.ns.cloudflare.com). It was registered on 7 August 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.86.241 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by jkoffice-dk.mail.protection.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 27ms

Nameserver	IP addresses	PTR	ASN / ISP
brodie.ns.cloudflare.com	108.162.195.237 162.159.44.237 172.64.35.237 2606:4700:58::a29f:2ced 2803:f800:50::6ca2:c3ed 2a06:98c1:50::ac40:23ed	brodie.ns.cloudflare.com brodie.ns.cloudflare.com brodie.ns.cloudflare.com brodie.ns.cloudflare.com brodie.ns.cloudflare.com brodie.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
oaklyn.ns.cloudflare.com	108.162.194.90 162.159.38.90 172.64.34.90 2606:4700:50::a29f:265a 2803:f800:50::6ca2:c25a 2a06:98c1:50::ac40:225a	oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.86.241	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.137.241	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	jkoffice-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::5 2a01:111:f403:ca04::8 2a01:111:f403:ca09::20 52.101.103.137 52.101.68.25 52.101.73.2 52.101.73.6	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.8
🔶 Autoconfig	81.95.249.204

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:56f1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:89f1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 25ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.86.241,172.67.137.241 ech=AEX+DQBB3QAgACANZZD4/H2thbBLnTNJyLm3eCjbGOLeQewG9SHS5P4HDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:56f1,2606:4700:3033::ac43:89f1

📝 TXT Records#

2 records 147ms

TXT Record
MS=ms67411285
v=spf1 +mx +a +ip4:77.235.62.181 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (jkoffice.dk)
~all (soft fail)	v=spf1 +mx +a +ip4:77.235.62.181 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 2026-10-24 10:54:44

www	104.21.86.241 172.67.137.241 2606:4700:3031::6815:56f1 2606:4700:3033::ac43:89f1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jkoffice.dk: 104.21.86.241 172.67.137.241 2606:4700:3031::6815:56f1 2606:4700:3033::ac43:89f1 (AS13335) www.jkoffice.dk: 104.21.86.241 172.67.137.241 2606:4700:3031::6815:56f1 2606:4700:3033::ac43:89f1 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jkoffice.dk	4gRDSxsIIqi1obmFqGD3mIZl2EwypjFLh6NDCJvGDSk
TXT	_acme-challenge.jkoffice.dk	KpsIRPjTM_CU-Y-nFEO-YgOPD1YZ_2h-iq60NZZjdmc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

101ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413101911
Primary NS (MNAME)	brodie.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-24 11:21:22

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-08-07
Expires	2028-08-31 (676d)

🔗 Same registrant#

5 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
billigekontormoebler.dk	Punktum dk A/S (direct)
billigekontormøbler.dk	Punktum dk A/S (direct)
billigtogbrugt.dk	Punktum dk A/S (direct)
jkgreenoffice.dk	Punktum dk A/S (direct)
konferenceborde.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

27ms

30ms

27ms

AAAA

31ms

TXT

147ms

CAA

27ms

HTTPS

25ms

TLSA

336ms

SOA

0ms

MTA-STS

45ms

DNSSEC

101ms

SRV

95ms

Total

2174ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 10:54:44	2305ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-09 22:22:01	1277ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 16:37:44	1241ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 15:20:08	3380ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 07:39:19	10389ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 06:11:33	886ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 05:57:35	2498ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 16:22:50 shown	2174ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 11:25:36	2758ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-19 06:54:01	9432ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-11 15:41:46	2214ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 14:44:07	2725ms	2 NS 2 A 1 MX	🔓 Insecure