fiberby.dk

📜 Historical scan 2026-06-17 10:07:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fiberby.dk is a .dk domain served by 4 nameservers (authns1.fiberby.net, authns2.fiberby.net, authns3.fiberby.net and 1 more). It was registered on 5 April 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.147 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by fiberby-dk.mail.protection.outlook.com. 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#

4 records 161ms

Nameserver	IP addresses	PTR	ASN / ISP
authns1.fiberby.net	193.104.135.46 2a03:5440:0:102::53	authns1.fiberby.net authns1.fiberby.net	AS42541 Fiberby ApS AS42541 Fiberby ApS
authns2.fiberby.net	193.104.135.50 2a03:5440:0:202::53	authns2.fiberby.net authns2.fiberby.net	AS42541 Fiberby ApS AS42541 Fiberby ApS
authns3.fiberby.net	193.104.135.54 2a03:5440:0:302::53	authns3.fiberby.net authns3.fiberby.net	AS42541 Fiberby ApS AS42541 Fiberby ApS
authns4.fiberby.net	2001:1af8:4700:a134:23::53 5.79.113.128	authns4.fiberby.net authns4.fiberby.net	AS60781 LeaseWeb Netherlands B.V. AS60781 LeaseWeb Netherlands B.V.

🌍 A Records#

1 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.147	—	linux134.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 211ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	fiberby-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::6 2a01:111:f403:ca04::7 2a01:111:f403:ca09::1 52.101.68.15 52.101.68.29 52.101.68.5 52.101.73.1	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

1 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a03:5440:1010::80:1	—	—	AS42541	Fiberby ApS	2a03:5440:0:0:0:0:0:0/29	🇩🇰 Denmark	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 89ms

TXT Record
google-site-verification=bLmQknK6CGokTCy8cjvUh4REmsBCqTdV2LT-tOiBdPg
MS=ms67573993
v=spf1 include:spf.protection.outlook.com include:spf.fiberby.net ip4:40.68.36.243 -all

✉️ SPF#

Policy	Record (fiberby.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.fiberby.net ip4:40.68.36.243 -all

📨 DMARC#

Policy	Record (_dmarc.fiberby.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@fiberby.net; ruf=mailto:dmarc@fiberby.net; aspf=s; adkim=s; fo=1

📬 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 2026-10-13 13:51:14

www CNAME	fiberby.dk (all on fiberby.dk) → 94.231.103.147 2a03:5440:1010::80:1 (AS42541 AS48854)
www vs bare domain	Same network fiberby.dk: 94.231.103.147 2a03:5440:1010::80:1 (AS42541 AS48854) www.fiberby.dk: 94.231.103.147 2a03:5440:1010::80:1 (AS42541 AS48854)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-fiberby-dk._domainkey.fiberby.onmicrosoft.com	RSA · ~1024 bit below 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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

132ms

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

🏷️ SOA#

102ms

Field	Value
Serial	2026060500
Primary NS (MNAME)	authns1.fiberby.net
Responsible (RNAME)	hostmaster@fiberby.net
Refresh	43200s
Retry	1800s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-18 09:12:29

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-04-05
Expires	2027-04-30 (194d)

🔗 Same registrant#

1 domain

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
fiberbypost.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

161ms

58ms

211ms

AAAA

34ms

TXT

89ms

CAA

155ms

HTTPS

168ms

TLSA

1864ms

SOA

102ms

MTA-STS

60ms

DNSSEC

132ms

SRV

0ms

Total

2800ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 15:28:33	2377ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-27 20:14:06	1982ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-02 23:16:10	1802ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-30 00:29:56	1052ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-26 17:56:27	2877ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 18:12:20	3648ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-21 06:08:38	1420ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 17:35:18	2212ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 06:10:53	2777ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 10:07:56 shown	2800ms	4 NS 1 A 1 MX	🔓 Insecure