a4.dk
📜 Historical scan 2026-07-08 13:04:23  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   103ms
NameserverIP addressesPTRASN / ISP
ns1.digitalocean.com 172.64.52.210
2606:4700:52::ac40:34d2		 ns1.digitalocean.com
ns1.digitalocean.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
ns2.digitalocean.com 172.64.53.21
2606:4700:5a::ac40:3515		 ns2.digitalocean.com
ns2.digitalocean.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
ns3.digitalocean.com 172.64.49.209
2606:4700:52::ac40:31d1		 ns3.digitalocean.com
ns3.digitalocean.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
🌍 A Records
🌍
No A records found
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.149.152
🔷 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
PolicyRecord (_dmarc.a4.dk)
p=quarantine v=DMARC1; p=quarantine; pct=100;
📬 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)
🔐 DNSSEC16066ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA
✗ No SOA record found
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
103ms
A
16032ms
MX
16030ms
AAAA
63ms
TXT
16235ms
CAA
16038ms
HTTPS
92ms
TLSA
69ms
SOA
16029ms
MTA-STS
47ms
DNSSEC
16066ms
SRV
16053ms
Total
32841ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 12:24:05 1468ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-07-11 22:36:55 1480ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-07-08 13:04:23 32841ms 3 NS 0 A 0 MX 🔓 Insecure View
2026-06-26 02:35:24 4534ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-06-24 10:43:23 1132ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 12:38:56 1234ms 3 NS 1 A 4 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone