backup21.dk
Last scanned: 2026-08-31 19:35:31  ·  1131ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   56ms
🌍 A Records2 records   49ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.94.137 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.168.80 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   42ms
🔐 HTTPS Records1 records   49ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.94.137,172.67.168.80 ech=AEX+DQBBBgAgACBEL2kTc7t0No4sUAg1lNvXQizBjLJ7M2y7TwDjxpjiUQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5e89,2606:4700:3031::ac43:a850
📝 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)
🔐 DNSSEC79ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2412003657
Primary NS (MNAME)chloe.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
56ms
A
49ms
MX
48ms
AAAA
42ms
TXT
182ms
CAA
47ms
HTTPS
49ms
TLSA
54ms
SOA
0ms
MTA-STS
73ms
DNSSEC
79ms
SRV
65ms
Total
1131ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 19:35:31 1131ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-08-26 18:58:09 972ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-08-13 04:16:55 3026ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-23 04:42:54 9710ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-02 12:56:34 3331ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-27 00:59:40 761ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-16 14:00:32 587ms 2 NS 2 A 0 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone