linsec.dk
Last scanned: 2026-08-13 22:59:41  ·  2427ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   305ms
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   291ms
IPTTLPTRASNISP / OrgCIDRCountryCity
151.236.218.48 3600s mail.sanderu.dk AS63949 Akamai Connected Cloud 151.236.216.0/21 🇬🇧 United Kingdom London
📧 MX Records1 records   291ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover151.236.218.48
🔶 Autoconfig151.236.218.48
🔷 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC393ms
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
📋 RegistrationWHOIS fetched 2026-07-13 11:57:57
FieldValue
RegistrarONE.COM A/S
Registered2024-08-11
Expires2026-08-10 (expired)
📋 WHOIS
⏱️ Lookup Timing
NS
305ms
A
291ms
MX
291ms
AAAA
291ms
TXT
484ms
CAA
207ms
HTTPS
268ms
TLSA
657ms
SOA
0ms
MTA-STS
319ms
DNSSEC
393ms
SRV
297ms
Total
2427ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-13 22:59:41 2427ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-17 22:56:12 2371ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-13 11:57:34 525ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 11:39:54 917ms 2 NS 1 A 0 MX 🔒 Secure View
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