fiberby.dk DNS records

🖥️ Nameservers4 records 31ms

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 Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.147	300s	linux134.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	fiberby-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca09::f 2a01:111:f403:ca48::c 52.101.68.29 52.101.73.1 52.101.73.16 52.101.73.26	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)1 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a03:5440:1010::80:1	300s	—	AS42541	Fiberby ApS	2a03:5440:0:0:0:0:0:0/29	🇩🇰 Denmark	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 95ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 226ms

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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.fiberby.dk	fiberby.dk.acme.fiberby.net

🔗 TLSA / DANE

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

🔐 DNSSEC117ms

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

🏷️ SOA0ms

Field	Value
Serial	2026073000
Primary NS (MNAME)	authns1.fiberby.net
Responsible (RNAME)	hostmaster@fiberby.net
Refresh	43200s
Retry	1800s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

42ms

MX

69ms

AAAA

51ms

TXT

226ms

CAA

66ms

HTTPS

52ms

TLSA

323ms

SOA

0ms

MTA-STS

108ms

DNSSEC

117ms

SRV

95ms

Total

1982ms

🕐 Scan History

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