cortevaagro.us - robtex.com
cortevaagro.us
| DNSSEC | ⚠️ Not signed | ||||||
| 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 2024-01-10 #13 | ||||||
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=1783226392 | ||||||
Same first word
DNS History
4 records (4 active, 0 former)
●NSpdns216.ultradns.biz2026-07-03 → 2026-07-05 · 2 obs
● 2026-07-05 04:58:30
●NSpdns216.ultradns.com2026-07-03 → 2026-07-05 · 2 obs
● 2026-07-05 04:58:30
●NSpdns216.ultradns.net2026-07-03 → 2026-07-05 · 2 obs
● 2026-07-05 04:58:30
●NSpdns216.ultradns.org2026-07-03 → 2026-07-05 · 2 obs
● 2026-07-05 04:58:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| cortevaagro.us | pdns216.ultradns.biz, pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.org | - |
✅ Authoritative Response
Server:156.154.66.216
NS records: pdns216.ultradns.biz, pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortevaagro.us (unsigned zone)
⏱️ Timing
Total: 107ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | pdns216.ultradns.biz, pdns216.ultradns.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | pdns216.ultradns.com hostmaster.corteva. |
Analysis
Name Servers
cortevaagro.us has four authoritative name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
cortevaagro.us partially shares its NS delegation with several other domains, including spintor.com, exzact.info, corteva.co.nz and two others.
In DNS configurations, these name servers often share authority with pdns5.ultradns.info, pdns1.ultradns.net, pdns6.ultradns.co.uk and 3 other name servers.
pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org each carry two IP addresses. pdns216.ultradns.biz has 156.154.66.216 and 2610:a1:1015::fc; pdns216.ultradns.com has 156.154.64.216 and 2001:502:f3ff::fc; pdns216.ultradns.net has 156.154.65.216 and 2610:a1:1014::fc; pdns216.ultradns.org has 156.154.67.216 and 2001:502:4612::fc.