celt.dk
Last scanned: 2026-08-27 04:44:04  ·  782ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   61ms
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   64ms
IPTTLPTRASNISP / OrgCIDRCountryCity
172.104.148.7 3600s 172-104-148-7.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.104.128.0/18 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   52ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.runbox.com 185.226.149.25 aibo.runbox.com AS50304 Blix Solutions AS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover172.104.148.7
🔶 Autoconfig172.104.148.7
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   213ms
TXT Record
v=spf1 include:spf.runbox.com -all
✉️ SPF
PolicyRecord (celt.dk)
-all (hard fail) v=spf1 include:spf.runbox.com -all
📨 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC116ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081001
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
61ms
A
64ms
MX
52ms
AAAA
46ms
TXT
213ms
CAA
85ms
HTTPS
73ms
TLSA
176ms
SOA
0ms
MTA-STS
85ms
DNSSEC
116ms
SRV
127ms
Total
782ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 04:44:04 782ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-10 19:03:11 3295ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-07 08:02:11 16741ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-16 06:18:08 853ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-12 12:36:17 906ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-01 12:29:26 666ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 21:58:37 50836ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 20:12:01 1563ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 20:01:46 640ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 20:01:03 563ms 2 NS 1 A 1 MX 🔒 Secure View
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