corteva.io - robtex.com
corteva.io
| 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 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1783138831 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSpdns216.ultradns.biz2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 05:10:56
●NSpdns216.ultradns.com2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 05:10:56
●NSpdns216.ultradns.net2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 05:10:56
●NSpdns216.ultradns.org2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 05:10:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| corteva.io | pdns216.ultradns.org, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.net | - |
✅ Authoritative Response
Server:156.154.66.216
NS records: pdns216.ultradns.org, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for corteva.io (unsigned zone)
⏱️ Timing
Total: 630ms | 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
corteva.io has four authoritative name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
There is at least partial name server overlap between corteva.io and other domains — corteva.fail, corteva.jobs, corteva.pink and two more among them.
These name servers regularly appear alongside pdns5.ultradns.info, pdns1.ultradns.net, pdns6.ultradns.co.uk and 3 other name servers in NS record sets.
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.