tyvek.dk
Last scanned: 2026-08-26 13:02:14  ·  968ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers6 records   81ms
NameserverIP addressesPTRASN / ISP
pdns1.ultradns.net 2001:502:f3ff::1
204.74.108.1		 pdns1.ultradns.net
pdns1.ultradns.net		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns2.ultradns.net 204.74.109.1
2610:a1:1014::1		 pdns2.ultradns.net
pdns2.ultradns.net		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns3.ultradns.org 199.7.68.1
2610:a1:1015::1		 pdns3.ultradns.org
pdns3.ultradns.org		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns4.ultradns.org 199.7.69.1
2001:502:4612::1		 pdns4.ultradns.org
pdns4.ultradns.org		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns5.ultradns.info 204.74.114.1
2610:a1:1016::1		 pdns5.ultradns.info
pdns5.ultradns.info		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns6.ultradns.co.uk 204.74.115.1
2610:a1:1017::1		 pdns6.ultradns.co.uk
pdns6.ultradns.co.uk		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
🌍 A Records1 records   101ms
IPTTLPTRASNISP / OrgCIDRCountryCity
204.74.99.100 300s crs.ultradns.net AS12008 Vercara, LLC 204.74.99.0/24 🇺🇸 United States —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 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)
🔐 DNSSEC189ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2011013103
Primary NS (MNAME)pdns1.ultradns.net
Responsible (RNAME)contact@usa.dupont.com
Refresh10800s
Retry3600s
Expire2592000s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
81ms
A
101ms
MX
98ms
AAAA
123ms
TXT
344ms
CAA
101ms
HTTPS
105ms
TLSA
98ms
SOA
0ms
MTA-STS
125ms
DNSSEC
189ms
SRV
131ms
Total
968ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 13:02:14 968ms 6 NS 1 A 0 MX 🔓 Insecure View
2026-06-27 16:43:31 1950ms 6 NS 1 A 0 MX 🔓 Insecure View
2026-06-22 06:35:45 530ms 6 NS 1 A 0 MX 🔓 Insecure View
2026-06-17 13:20:04 3108ms 6 NS 1 A 0 MX 🔓 Insecure View
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