hackerone.dk
Last scanned: 2026-08-26 13:29:08  ·  1258ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
NameserverIP addressesPTRASN / ISP
a.ns.hackerone.com 162.159.0.31
2400:cb00:2049:1::a29f:1f		 —
a.ns.hackerone.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
b.ns.hackerone.com 162.159.1.31
2400:cb00:2049:1::a29f:11f		 b.ns.hackerone.com
b.ns.hackerone.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
🌍 A Records2 records   62ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.70.124 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.223.136 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   49ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3034::ac43:df88 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::6815:467c 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
🔐 HTTPS Records1 records   74ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.70.124,172.67.223.136 ech=AEX+DQBB3gAgACAozdg6TF+IOLutI2raZBDRPBvAjRJn2ExG9kdRfnpPIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:df88,2606:4700:3035::6815:467c
📝 TXT Records2 records   238ms
TXT Record
v=DMARC1; p=reject; rua=mailto:fgunarop@ag.dmarcian.com,mailto:dmarc-reports@hackerone.com; ruf=mailto:fgunarop@fr.dmarcian.com;
v=spf1 -all
✉️ SPF
PolicyRecord (hackerone.dk)
-all (hard fail) v=spf1 -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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC119ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2411288936
Primary NS (MNAME)a.ns.hackerone.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
47ms
A
62ms
MX
80ms
AAAA
49ms
TXT
238ms
CAA
47ms
HTTPS
74ms
TLSA
62ms
SOA
0ms
MTA-STS
99ms
DNSSEC
119ms
SRV
113ms
Total
1258ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 13:29:08 1258ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-08-09 08:59:40 622ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-17 06:32:31 2541ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-30 12:45:38 636ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-27 00:31:41 750ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-22 20:17:51 1179ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 10:48:30 1018ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 10:45:39 676ms 2 NS 2 A 0 MX 🔓 Insecure View
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