f5leder.dk

📜 Historical scan 2026-09-07 06:47:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

f5leder.dk is a .dk domain served by 2 nameservers (lady.ns.cloudflare.com, yahir.ns.cloudflare.com). It was registered on 1 September 2026 (WHOIS) and first appeared in the .dk zone on 2 September 2026. The zone is not DNSSEC-signed, publishes a 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 43ms

Nameserver	IP addresses	PTR	ASN / ISP
lady.ns.cloudflare.com	108.162.192.127 172.64.32.127 173.245.58.127 2606:4700:50::adf5:3a7f 2803:f800:50::6ca2:c07f 2a06:98c1:50::ac40:207f	lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yahir.ns.cloudflare.com	108.162.195.34 162.159.44.34 172.64.35.34 2606:4700:58::a29f:2c22 2803:f800:50::6ca2:c322 2a06:98c1:50::ac40:2322	yahir.ns.cloudflare.com yahir.ns.cloudflare.com yahir.ns.cloudflare.com yahir.ns.cloudflare.com yahir.ns.cloudflare.com yahir.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#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.f5leder.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:rua+kvtfmbmnjwhp@dmarcwise.email;

📬 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 06:22:50

www	104.21.26.152 172.67.136.137 2606:4700:3033::6815:1a98 2606:4700:3033::ac43:8889 (AS13335) (address records, no CNAME)
www vs bare domain	Same network f5leder.dk: 104.21.26.152 172.67.136.137 2606:4700:3033::6815:1a98 2606:4700:3033::ac43:8889 (AS13335) www.f5leder.dk: 104.21.26.152 172.67.136.137 2606:4700:3033::6815:1a98 2606:4700:3033::ac43:8889 (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.

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.f5leder.dk	GSgcv_v9Wxp0MQ9VhnlO-7W0DIgAHMvknXdbMHIFAjM
TXT	_acme-challenge.f5leder.dk	lqkW7FrQa5rCbo0ac_1W5221TTasgkE_Kw5DKLMu6J8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

74ms

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	2413784294
Primary NS (MNAME)	lady.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 16:57:50

Field	Value
Registrar	CURANET A/S
Registered	2026-09-01
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
businessinstitute-mbauddannelse.dk	CURANET A/S
businessinstitute-uddannelse.dk	CURANET A/S
businessinstitute-uddannelser.dk	CURANET A/S
ceresbyentappehaller.dk	CURANET A/S
f5-danmark.dk	CURANET A/S
f5-dev.dk	CURANET A/S
f5danmark.dk	CURANET A/S
f5ledernetvaerk.dk	CURANET A/S
f5netvaerket.dk	CURANET A/S
f5network.dk	CURANET A/S
f5nordic.dk	CURANET A/S
tuborgtappehaller.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

43ms

38ms

50ms

AAAA

43ms

TXT

228ms

CAA

31ms

HTTPS

38ms

TLSA

40ms

SOA

0ms

MTA-STS

58ms

DNSSEC

74ms

SRV

72ms

Total

1053ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 03:55:27	2868ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 03:22:39	627ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 19:34:30	600ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-20 13:28:03	961ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-07 06:47:10 shown	1053ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-02 08:51:20	709ms	2 NS 0 A 0 MX	🔓 Insecure