datalærer.dk xn--datalrer-n0a.dk
Last scanned: 2026-08-27 11:42:43  ·  591ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   46ms
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   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
149.210.164.85 43200s martindybdal.dk AS20857 Signet B.V. 149.210.128.0/17 🇳🇱 The Netherlands Zwijndrecht
📧 MX Records1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 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)
🔐 DNSSEC108ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081201
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
46ms
A
48ms
MX
45ms
AAAA
39ms
TXT
164ms
CAA
35ms
HTTPS
38ms
TLSA
115ms
SOA
0ms
MTA-STS
58ms
DNSSEC
108ms
SRV
62ms
Total
591ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 11:42:43 591ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-12 21:30:26 2562ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-08 20:12:51 4660ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-18 22:52:04 562ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-15 12:46:42 529ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-28 14:36:27 1225ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 08:15:55 642ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-22 10:07:50 7134ms 2 NS 1 A 1 MX ⚠️ Bogus View
2026-06-21 09:13:23 318ms 0 NS 0 A 0 MX 🔒 Secure View
2026-06-19 08:50:19 572ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 01:06:26 507ms 2 NS 1 A 0 MX 🔒 Secure View
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