fiber-by.dk

📜 Historical scan 2026-06-24 15:10:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fiber-by.dk is a .dk domain served by 4 nameservers (authns1.fiberby.net, authns2.fiberby.net, authns3.fiberby.net and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.104.135.126 is hosted by Fiberby ApS (AS42541) in Denmark. Mail is handled by mail.fiberby.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 253ms

Nameserver	IP addresses	PTR	ASN / ISP
authns1.fiberby.net	193.104.135.46 2a03:5440:0:102::53	authns1.fiberby.net —	AS42541 Fiberby ApS AS42541 Fiberby ApS
authns2.fiberby.net	193.104.135.50 2a03:5440:0:202::53	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	AS60781 LeaseWeb Netherlands B.V. AS60781 LeaseWeb Netherlands B.V.

🌍 A Records#

1 records 263ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.104.135.126	900s	web1.fiberby.net	AS42541	Fiberby ApS	193.104.135.0/24	🇩🇰 Denmark	—

📧 MX Records#

1 records 287ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mail.fiberby.dk	193.106.165.197	193-106-165-197.ip4.fiberby.net	AS42541 Fiberby ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	fiber-by.dk → 193.104.135.126
🔶 Autoconfig	fiber-by.dk → 193.104.135.126

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-11 10:39:13

www CNAME	fiber-by.dk (all on fiber-by.dk) → 193.104.135.126 (AS42541)
www vs bare domain	Same network fiber-by.dk: 193.104.135.126 (AS42541) www.fiber-by.dk: 193.104.135.126 (AS42541)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.fiber-by.dk	fiber-by.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

576ms

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

🏷️ SOA#

253ms

Field	Value
Serial	2020013000
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

253ms

263ms

287ms

AAAA

239ms

TXT

666ms

CAA

246ms

HTTPS

220ms

TLSA

199ms

SOA

253ms

MTA-STS

229ms

DNSSEC

576ms

SRV

467ms

Total

4202ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 03:43:21	1152ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-29 17:18:12	579ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-28 09:42:17	1434ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-26 19:17:21	18772ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-28 01:37:29	1984ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 15:10:37 shown	4202ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-22 09:05:47	918ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 19:36:09	763ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 23:39:06	3368ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 05:30:15	1473ms	4 NS 1 A 1 MX	❓ Unknown
2026-06-17 09:46:47	707ms	4 NS 1 A 1 MX	🔓 Insecure