sonderborg-ungdomsskole.dk
Last scanned: 2026-08-26 22:07:47  ·  889ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
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   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.40.55 3600s vm1251.enterprisecloud.nu AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoversonderborg-ungdomsskole.dk → 185.21.40.55
🔶 Autoconfigsonderborg-ungdomsskole.dk → 185.21.40.55
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   189ms
TXT Record
google-site-verification=XEBKez41ZLcLvsO7aVeFoqP-SyOKBzNI9o2GINHo-Kc
✉️ 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.sonderborg-ungdomsskole.dk sonderborg-ungdomsskole.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC147ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026080801
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
39ms
A
51ms
MX
47ms
AAAA
57ms
TXT
189ms
CAA
43ms
HTTPS
58ms
TLSA
39ms
SOA
0ms
MTA-STS
69ms
DNSSEC
147ms
SRV
63ms
Total
889ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 22:07:47 889ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-09 23:33:15 829ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-10 07:46:28 1609ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 20:41:53 2533ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 04:41:34 632ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-18 05:08:03 996ms 2 NS 1 A 0 MX 🔒 Secure View
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