fibernettjek.dk

📜 Historical scan 2026-06-24 06:24:40 · ← 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 of unknown DNSSEC status, 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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
andy.ns.cloudflare.com	108.162.193.101 172.64.33.101 173.245.59.101 2606:4700:58::adf5:3b65 2803:f800:50::6ca2:c165 2a06:98c1:50::ac40:2165	andy.ns.cloudflare.com andy.ns.cloudflare.com andy.ns.cloudflare.com andy.ns.cloudflare.com andy.ns.cloudflare.com andy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kay.ns.cloudflare.com	108.162.192.125 172.64.32.125 173.245.58.125 2606:4700:50::adf5:3a7d 2803:f800:50::6ca2:c07d 2a06:98c1:50::ac40:207d	kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.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 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.68.37	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.186.80	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx1.improvmx.com	13.37.195.136 15.236.236.160 2a05:d012:412:e201:88aa:e7b9:7a43:12d7 2a05:d012:412:e202:f36:2c1f:1a49:d38a 2a05:d012:412:e203:373a:f51a:4a85:1d25 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. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	600s	mx2.improvmx.com	13.36.107.63 13.36.222.39 15.236.61.92 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678 2a05:d012:412:e202:e81e:cc44:3b53:8a3d 2a05:d012:412:e203:7e33:3d9c:28d7:ee20	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. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4425	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:ba50	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.37,172.67.186.80 ech=AEX+DQBBlgAgACDbgsU7eKwgj7+/+LYQ115Rq6mUjWdA5HgFfMtmi9+bPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4425,2606:4700:3032::ac43:ba50

📝 TXT Records#

1 records 156ms

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#

85ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'fibernettjek.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

35ms

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#

35ms

33ms

35ms

AAAA

31ms

TXT

156ms

CAA

36ms

HTTPS

38ms

TLSA

55ms

SOA

35ms

MTA-STS

36ms

DNSSEC

85ms

SRV

68ms

Total

846ms

🕐 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 shown	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	664ms	2 NS 2 A 2 MX	🔓 Insecure