extensa.dk
📜 Historical scan 2026-08-06 17:52:42  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   113ms
🌍 A Records3 records   115ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.26.4.52 300s AS13335 Cloudflare, Inc. 104.26.0.0/20
104.26.5.52 300s AS13335 Cloudflare, Inc. 104.26.0.0/20
172.67.75.209 300s AS13335 Cloudflare, Inc. 172.67.64.0/18
📧 MX Records1 records   96ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s mail.bradwell.nl 74.63.240.58 mail.bradwell.nl AS46475 Limestone Networks, Inc.
🔷 AAAA Records (IPv6)3 records   115ms
🔐 HTTPS Records1 records   133ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.26.4.52,104.26.5.52,172.67.75.209 ipv6hint=2606:4700:20::681a:434,2606:4700:20::681a:534,2606:4700:20::ac43:4bd1
📝 TXT Records1 records   253ms
TXT Record
v=spf1 ip4:64.31.1.98 ip4:95.168.186.193 ip4:95.168.190.151 ip4:95.154.201.97 ip4:95.154.201.238 ip4:74.63.240.58 +a +mx ~all
✉️ SPF
PolicyRecord (extensa.dk)
~all (soft fail) v=spf1 ip4:64.31.1.98 ip4:95.168.186.193 ip4:95.168.190.151 ip4:95.154.201.97 ip4:95.154.201.238 ip4:74.63.240.58 +a +mx ~all
📨 DMARC
PolicyRecord (_dmarc.extensa.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@bradwell.nl; adkim=s; aspf=s
📬 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.extensa.dk QvLlaLtq8uJPPvkSxOdC-o-bnl_EurKDLIyvEvu3EzE
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC181ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2411505788
Primary NS (MNAME)noor.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
113ms
A
115ms
MX
96ms
AAAA
115ms
TXT
253ms
CAA
114ms
HTTPS
133ms
TLSA
2946ms
SOA
0ms
MTA-STS
131ms
DNSSEC
181ms
SRV
134ms
Total
4518ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 23:52:33 5485ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-08-31 16:27:46 4929ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-08-28 18:56:40 5923ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-08-26 15:21:01 3246ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-08-06 17:52:42 4518ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-06-19 22:04:09 3091ms 2 NS 3 A 1 MX 🔓 Insecure View
2026-06-17 09:09:51 5925ms 2 NS 3 A 1 MX 🔓 Insecure View
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