byfiber.dk
Last scanned: 2026-08-26 10:30:17  ·  962ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   58ms
NameserverIP addressesPTRASN / 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   67ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.104.135.126 900s web1.fiberby.net AS42541 Fiberby ApS 193.104.135.0/24 🇩🇰 Denmark —
📧 MX Records1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail.fiberby.dk 193.106.165.197 193-106-165-197.ip4.fiberby.net AS42541 Fiberby ApS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverbyfiber.dk → 193.104.135.126
🔶 Autoconfigbyfiber.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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.byfiber.dk byfiber.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC106ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026042400
Primary NS (MNAME)authns1.fiberby.net
Responsible (RNAME)hostmaster@fiberby.net
Refresh43200s
Retry1800s
Expire2419200s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
58ms
A
67ms
MX
39ms
AAAA
58ms
TXT
176ms
CAA
51ms
HTTPS
55ms
TLSA
149ms
SOA
0ms
MTA-STS
79ms
DNSSEC
106ms
SRV
88ms
Total
962ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 10:30:17 962ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 00:07:14 3812ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 18:10:33 2534ms 4 NS 1 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone