isby.dk
Last scanned: 2026-09-04 14:44:32  ·  1124ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   24ms
NameserverIP addressesPTRASN / ISP
ns1.arrownet.dk 62.61.130.2 ns1.arrownet.dk AS15516 DKTV A/S
ns2.arrownet.dk 62.61.131.2 ns2.arrownet.dk AS15516 DKTV A/S
🌍 A Records
🌍
No A records found
📧 MX Records1 records   6ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.danskkabeltv.dk 62.61.141.2
62.61.141.3
62.61.141.5
62.61.141.6
62.61.141.7
62.61.141.8		 mx-01.dk-tv.net
mx-02.dk-tv.net
mx-04.dk-tv.net
mx-05.dk-tv.net
mx-06.dk-tv.net
mx-07.dk-tv.net		 AS15516 DKTV A/S
AS15516 DKTV A/S
AS15516 DKTV A/S
AS15516 DKTV A/S
AS15516 DKTV A/S
AS15516 DKTV A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   56ms
TXT Record
v=spf1 include:_spf-customer.dk-tv.net
✉️ SPF
PolicyRecord (isby.dk)
no all — incomplete SPF v=spf1 include:_spf-customer.dk-tv.net
📨 DMARC
PolicyRecord (_dmarc.isby.dk)
p=reject v=DMARC1;p=reject;sp=reject;fo=1;ri=3600;pct=100;rua=mailto:report@dmarc.dk-tv.net;ruf=mailto:failure@dmarc.dk-tv.net
📬 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.isby.dk cust-www1.arrownet.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC260ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA6ms
FieldValue
Serial2017042407
Primary NS (MNAME)ns.arrownet.dk
Responsible (RNAME)hostmaster@arrownet.dk
Refresh600s
Retry3600s
Expire3600000s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
24ms
A
111ms
MX
6ms
AAAA
44ms
TXT
56ms
CAA
6ms
HTTPS
78ms
TLSA
150ms
SOA
6ms
MTA-STS
35ms
DNSSEC
260ms
SRV
0ms
Total
1124ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-04 14:44:32 1124ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-24 23:51:56 2779ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-18 22:39:43 949ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-17 21:55:36 4052ms 2 NS 0 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone