oswald.dk
📜 Historical scan 2026-07-08 19:12:49  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   36ms
🌍 A Records2 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.11.45 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.165.37 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover104.21.11.45
🔶 Autoconfig104.21.11.45
🔷 AAAA Records (IPv6)2 records   46ms
🔐 HTTPS Records1 records   41ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.11.45,172.67.165.37 ech=AEX+DQBBxgAgACC1mdpQ9JuKE4+VvpfwvVjfdQh8I/nh6vy8KAhtdm0vEgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:a525,2606:4700:3035::6815:b2d
📝 TXT Records1 records   188ms
TXT Record
v=spf1 include:spf.simply.com ?all
✉️ SPF
PolicyRecord (oswald.dk)
?all (neutral) v=spf1 include:spf.simply.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 / DANE2 records   58ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
🔐 DNSSEC127ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2408995981
Primary NS (MNAME)colin.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
36ms
A
32ms
MX
45ms
AAAA
46ms
TXT
188ms
CAA
46ms
HTTPS
41ms
TLSA
58ms
SOA
0ms
MTA-STS
50ms
DNSSEC
127ms
SRV
96ms
Total
843ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 03:16:36 2283ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-07-08 19:12:49 843ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 20:24:55 829ms 2 NS 2 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone