fibernettjek.dk

📜 Historical scan 2026-06-17 09:33:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fibernettjek.dk is a .dk domain served by 2 nameservers (andy.ns.cloudflare.com, kay.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.37 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.improvmx.com, mx2.improvmx.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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
andy.ns.cloudflare.com	—	—	—
kay.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.68.37	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.186.80	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.improvmx.com	13.37.195.136 15.236.236.160 35.181.18.45	ec2-13-37-195-136.eu-west-3.compute.amazonaws.com ec2-15-236-236-160.eu-west-3.compute.amazonaws.com ec2-35-181-18-45.eu-west-3.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	—	mx2.improvmx.com	13.36.107.63 13.36.222.39 15.236.61.92	ec2-13-36-107-63.eu-west-3.compute.amazonaws.com ec2-13-36-222-39.eu-west-3.compute.amazonaws.com ec2-15-236-61-92.eu-west-3.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

2 records 26ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:4425	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:ba50	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.37,172.67.186.80 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:4425,2606:4700:3035::ac43:ba50

📝 TXT Records#

1 records 102ms

TXT Record
v=spf1 include:spf.improvmx.com include:spf.inmobile.com ~all

✉️ SPF#

Policy	Record (fibernettjek.dk)
~all (soft fail)	v=spf1 include:spf.improvmx.com include:spf.inmobile.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 2026-10-21 05:01:07

www	104.21.68.37 172.67.186.80 2606:4700:3030::6815:4425 2606:4700:3032::ac43:ba50 (AS13335) (address records, no CNAME)
www vs bare domain	Same network fibernettjek.dk: 104.21.68.37 172.67.186.80 2606:4700:3030::6815:4425 2606:4700:3032::ac43:ba50 (AS13335) www.fibernettjek.dk: 104.21.68.37 172.67.186.80 2606:4700:3030::6815:4425 2606:4700:3032::ac43:ba50 (AS13335)
Wildcard	No

🔎 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#

108ms

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

🏷️ SOA#

23ms

Field	Value
Serial	2405898366
Primary NS (MNAME)	andy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

34ms

33ms

27ms

AAAA

26ms

TXT

102ms

CAA

31ms

HTTPS

31ms

TLSA

71ms

SOA

23ms

MTA-STS

41ms

DNSSEC

108ms

SRV

0ms

Total

664ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 05:01:07	937ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 14:14:07	1040ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-29 14:06:24	808ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 12:56:44	992ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-14 16:06:51	2416ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-05 04:43:53	1538ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-01 11:50:23	847ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-03 07:15:46	2691ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-09 01:37:46	3141ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-02 04:17:09	1336ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-24 06:24:40	846ms	2 NS 2 A 2 MX	❓ Unknown
2026-06-19 03:54:47	1267ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 09:33:45 shown	664ms	2 NS 2 A 2 MX	🔓 Insecure