grundfoserhvervsuddannelser.dk
Last scanned: 2026-06-28 03:24:05  ·  545ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   34ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.247.67.245 3600s — AS31590 Rackhosting.com ApS 77.247.64.0/20 🇩🇰 Denmark —
📧 MX Records
📧
No MX records found
🔷 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)
🔐 DNSSEC53ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA28ms
FieldValue
Serial2023083000
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
34ms
A
30ms
MX
31ms
AAAA
29ms
TXT
142ms
CAA
32ms
HTTPS
29ms
TLSA
60ms
SOA
28ms
MTA-STS
34ms
DNSSEC
53ms
SRV
29ms
Total
545ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-28 03:24:05 545ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-28 00:33:32 1866ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-25 00:46:02 696ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-24 17:10:52 520ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-24 03:30:32 1176ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 10:45:47 534ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-17 10:40:25 604ms 3 NS 1 A 0 MX 🔒 Secure View
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