app4all.dk
Last scanned: 2026-08-26 22:24:24  ·  573ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.239 10800s web1.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records1 records   40ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverapp4all.dk → 185.21.41.239
🔶 Autoconfigapp4all.dk → 185.21.41.239
🔷 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.app4all.dk app4all.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC87ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026080901
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
43ms
MX
40ms
AAAA
45ms
TXT
170ms
CAA
44ms
HTTPS
44ms
TLSA
41ms
SOA
0ms
MTA-STS
65ms
DNSSEC
87ms
SRV
60ms
Total
573ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 22:24:24 573ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-10 06:44:54 2827ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-15 22:02:54 637ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-11 21:26:41 8715ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 20:49:49 451ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 13:36:15 611ms 2 NS 1 A 0 MX 🔒 Secure View
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