underlup.dk
Last scanned: 2026-08-12 13:27:08  ·  3094ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   231ms
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   233ms
IPTTLPTRASNISP / OrgCIDRCountryCity
85.114.140.50 43200s — AS24961 WIIT AG 85.114.128.0/19 🇩🇪 Germany —
📧 MX Records1 records   278ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail.underlup.dk 85.114.140.50 — AS24961 WIIT AG
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverunderlup.dk → 85.114.140.50
🔶 Autoconfigunderlup.dk → 85.114.140.50
🔷 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.underlup.dk underlup.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC635ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081101
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
231ms
A
233ms
MX
278ms
AAAA
245ms
TXT
802ms
CAA
180ms
HTTPS
206ms
TLSA
566ms
SOA
0ms
MTA-STS
354ms
DNSSEC
635ms
SRV
283ms
Total
3094ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-12 13:27:08 3094ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-12 10:35:21 845ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 03:39:30 1454ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 20:23:41 1943ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 12:04:06 901ms 2 NS 1 A 1 MX 🔒 Secure View
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