jfknet.dk

📜 Historical scan 2026-08-28 05:07:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jfknet.dk is a .dk domain served by 2 nameservers (norman.ns.cloudflare.com, tessa.ns.cloudflare.com). It was registered on 12 April 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by antispam.thomaskruse.dk. The zone is not DNSSEC-signed, 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 50ms

Nameserver	IP addresses	PTR	ASN / ISP
norman.ns.cloudflare.com	108.162.193.217 172.64.33.217 173.245.59.217 2606:4700:58::adf5:3bd9 2803:f800:50::6ca2:c1d9 2a06:98c1:50::ac40:21d9	norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tessa.ns.cloudflare.com	108.162.194.229 162.159.38.229 172.64.34.229 2606:4700:50::a29f:26e5 2803:f800:50::6ca2:c2e5 2a06:98c1:50::ac40:22e5	tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	antispam.thomaskruse.dk	213.5.32.133	navsmtpsrv001.bodata.dk	AS49974 Bo data ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	owa.krusenet.dk → 213.5.32.160
🔶 Autoconfig	owa.krusenet.dk → 213.5.32.160

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 75ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	5	443	owa.krusenet.dk

📝 TXT Records#

1 records 248ms

TXT Record
v=spf1 mx a:owa.krusenet.dk ip4:213.5.32.160 include:_spf2.bodata.dk ~all

✉️ SPF#

Policy	Record (jfknet.dk)
~all (soft fail)	v=spf1 mx a:owa.krusenet.dk ip4:213.5.32.160 include:_spf2.bodata.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 2026-10-08 22:03:50

www CNAME	owa.krusenet.dk (all on krusenet.dk) → 213.5.32.160 (AS49974)
www vs bare domain	Only www resolves jfknet.dk: no address www.jfknet.dk: 213.5.32.160 (AS49974) (all like this)
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
CNAME	_acme-challenge.jfknet.dk	owa.krusenet.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

102ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2410978994
Primary NS (MNAME)	norman.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 08:56:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-04-12
Expires	2027-04-30 (194d)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

51ms

AAAA

41ms

TXT

248ms

CAA

65ms

HTTPS

47ms

TLSA

124ms

SOA

0ms

MTA-STS

77ms

DNSSEC

102ms

SRV

75ms

Total

856ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 20:04:15	1894ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-26 19:33:18	1820ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-25 19:06:05	2372ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-02 00:21:51	1154ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-28 05:07:27 shown	856ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-26 19:14:40	2869ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-31 18:33:51	1023ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-27 07:04:51	1532ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-17 13:29:39	686ms	2 NS 0 A 1 MX	🔓 Insecure