f5lederforum.dk

📜 Historical scan 2026-10-04 17:27:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

f5lederforum.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. Its website address 104.21.95.90 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.f5lederforum.dk. The zone is not DNSSEC-signed, 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 37ms

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#

2 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.90	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.170.63	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	mail.f5lederforum.dk	16.192.12.187	mail.f5lederforum.dk	AS16509 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5f5a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:aa3f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.90,172.67.170.63 ech=AEX+DQBBmQAgACD7Shh1d6qs0wpKexZQye4mLOUQsE3TN9MW0nZe3I37bwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5f5a,2606:4700:3033::ac43:aa3f

📝 TXT Records#

1 records 210ms

TXT Record
v=spf1 a mx ip4:16.192.12.187 ~all

✉️ SPF#

Policy	Record (f5lederforum.dk)
~all (soft fail)	v=spf1 a mx ip4:16.192.12.187 ~all

📨 DMARC#

Policy	Record (_dmarc.f5lederforum.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:rua+ns1dsihjzzry@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 2026-10-09 07:18:51

www	104.21.95.90 172.67.170.63 2606:4700:3030::6815:5f5a 2606:4700:3033::ac43:aa3f (AS13335) (address records, no CNAME)
www vs bare domain	Same network f5lederforum.dk: 104.21.95.90 172.67.170.63 2606:4700:3030::6815:5f5a 2606:4700:3033::ac43:aa3f (AS13335) www.f5lederforum.dk: 104.21.95.90 172.67.170.63 2606:4700:3030::6815:5f5a 2606:4700:3033::ac43:aa3f (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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

127ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2416611543
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 2026-10-04 18:13:54

Field	Value
Registrar	CURANET A/S
Registered	2026-09-01
Expires	2027-08-31 (311d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

46ms

51ms

AAAA

44ms

TXT

210ms

CAA

29ms

HTTPS

56ms

TLSA

76ms

SOA

33ms

MTA-STS

66ms

DNSSEC

127ms

SRV

61ms

Total

785ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 17:30:14	830ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-04 17:27:53 shown	785ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-02 17:23:15	462ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 23:42:29	724ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 07:45:07	600ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 06:53:02	617ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 20:59:51	1592ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-08 11:19:21	431ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-02 08:54:57	989ms	2 NS 0 A 0 MX	🔓 Insecure