proofping.dk
Last scanned: 2026-08-21 10:08:31  ·  1747ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   85ms
🌍 A Records2 records   91ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.59.69 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.217.154 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records1 records   75ms
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
🔷 Autodiscover188.114.97.1
🔶 Autoconfig172.67.217.154
🔷 AAAA Records (IPv6)2 records   92ms
🔐 HTTPS Records1 records   86ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.59.69,172.67.217.154 ech=AEX+DQBBOAAgACBTHQoGGdM6x02ZztDk1Gy/N+sSLhZyJO6HBCFL1QdAcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:3b45,2606:4700:3036::ac43:d99a
📝 TXT Records1 records   311ms
TXT Record
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (proofping.dk)
-all (hard fail) 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   334ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
🔐 DNSSEC220ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2412700959
Primary NS (MNAME)merlin.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
85ms
A
91ms
MX
75ms
AAAA
92ms
TXT
311ms
CAA
90ms
HTTPS
86ms
TLSA
334ms
SOA
0ms
MTA-STS
136ms
DNSSEC
220ms
SRV
132ms
Total
1747ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-21 10:08:31 1747ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-20 08:42:15 3280ms 2 NS 2 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone