herculex.us - robtex.com
herculex.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar | ||||||
| PTR | crs.ultradns.net | ||||||
| NS | pdns216.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::fc🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns216.ultradns.com | ||||||
| A | 156.154.64.216🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns216.ultradns.com | ||||||
| NS | pdns216.ultradns.biz | ||||||
| A | 2610:a1:1015::fc🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns216.ultradns.biz | ||||||
| A | 156.154.66.216🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns216.ultradns.biz | ||||||
| NS | pdns216.ultradns.net | ||||||
| A | 2610:a1:1014::fc🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns216.ultradns.net | ||||||
| A | 156.154.65.216🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns216.ultradns.net | ||||||
| NS | pdns216.ultradns.org | ||||||
| A | 2001:502:4612::fc🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns216.ultradns.org | ||||||
| A | 156.154.67.216🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns216.ultradns.org | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | pdns216.ultradns.comhostmaster@corteva.com 2019-02-06 #6 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1784078862 | ||||||
Same first word
DNS History
9 records (5 active, 4 former)
○NSmantdnsi1.dow.com2015-07-17 → 2019-03-20 · 4 obs
● 2019-03-20 18:19:58
○ 2026-06-17 18:30:32
○ 2026-07-15 01:50:40
●NSpdns216.ultradns.biz2026-06-17 → 2026-07-15 · 3 obs
● 2026-06-17 18:30:32
● 2026-07-15 01:50:40
●NSpdns216.ultradns.com2026-06-17 → 2026-07-15 · 3 obs
● 2026-06-17 18:30:32
● 2026-07-15 01:50:40
●NSpdns216.ultradns.net2026-06-17 → 2026-07-15 · 3 obs
● 2026-06-17 18:30:32
● 2026-07-15 01:50:40
●NSpdns216.ultradns.org2026-06-17 → 2026-07-15 · 3 obs
● 2026-06-17 18:30:32
● 2026-07-15 01:50:40
○NStnntdnsi1.dow.com2015-07-17 → 2019-03-20 · 4 obs
● 2019-03-20 18:19:58
○ 2026-06-17 18:30:32
○ 2026-07-15 01:50:40
○NStxntdnsi1.dow.com2015-07-17 → 2019-03-20 · 4 obs
● 2019-03-20 18:19:58
○ 2026-06-17 18:30:32
○ 2026-07-15 01:50:40
●A204.74.99.1002026-06-17 → 2026-07-15 · 3 obs
● 2026-06-17 18:30:32
● 2026-07-15 01:50:40
○A216.99.82.812015-07-17 → 2019-03-20 · 4 obs
● 2019-03-20 18:19:58
○ 2026-06-17 18:30:32
○ 2026-07-15 01:50:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, k.cctld.us, n.cctld.us, x.cctld.us... | - |
| herculex.us | pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz | - |
✅ Authoritative Response
Server:156.154.67.216
NS records: pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for herculex.us (unsigned zone)
⏱️ Timing
Total: 4585ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.74.99.100 |
| NS | 4 | pdns216.ultradns.biz, pdns216.ultradns.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | pdns216.ultradns.com hostmaster.corteva. |
Analysis
IP Addresses
herculex.us has exactly one IP address — 204.74.99.100.
meetcenterwellcolumbia.com, expediacard.net, fairmont.it plus two other host names have IP numbers in common with herculex.us.
Name Servers
Four name servers handle the delegation for herculex.us: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
There is at least partial name server overlap between herculex.us and other domains — dithane.eu, cortevaagro.tv, bandht.com and two more among them.
All four hostnames — pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org — resolve to two IP numbers apiece: pdns216.ultradns.biz to 156.154.66.216 and 2610:a1:1015::fc; pdns216.ultradns.com to 156.154.64.216 and 2001:502:f3ff::fc; pdns216.ultradns.net to 156.154.65.216 and 2610:a1:1014::fc; pdns216.ultradns.org to 156.154.67.216 and 2001:502:4612::fc.