cortevaagriscience.com - robtex.com
cortevaagriscience.com
| 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 #16 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1783192031 | ||||||
Same first word
DNS History
12 records (4 active, 8 former)
○NSdns1.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○NSdns2.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
●NSpdns216.ultradns.biz2026-06-17 → 2026-07-04 · 3 obs
● 2026-06-17 18:30:08
● 2026-07-04 19:15:28
●NSpdns216.ultradns.com2026-06-17 → 2026-07-04 · 3 obs
● 2026-06-17 18:30:08
● 2026-07-04 19:15:28
●NSpdns216.ultradns.net2026-06-17 → 2026-07-04 · 3 obs
● 2026-06-17 18:30:08
● 2026-07-04 19:15:28
●NSpdns216.ultradns.org2026-06-17 → 2026-07-04 · 3 obs
● 2026-06-17 18:30:08
● 2026-07-04 19:15:28
○MXeforward1.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○MXeforward2.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○MXeforward3.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○MXeforward4.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○MXeforward5.registrar-servers.com2017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
○A162.255.119.122017-11-05 → 2017-11-05 · 3 obs
○ 2026-06-17 18:30:08
○ 2026-07-04 19:15:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net... | - |
| cortevaagriscience.com | pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.66.216
NS records: pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortevaagriscience.com (unsigned zone)
⏱️ Timing
Total: 642ms | 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. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns216.ultradns.com, pdns216.ultradns.com)
Analysis
Name Servers
The NS records for cortevaagriscience.com point to four name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
cortevaagriscience.com shares at least some of its name servers with other domains, including battleweeds.com, natreon.com, fusionpasturas.com and two others.
These name servers are frequently seen alongside pdns1.ultradns.net, pdns5.ultradns.info, pdns2.ultradns.net and 3 other name servers.
The host names pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org each resolve to two IP addresses: pdns216.ultradns.biz resolves to 156.154.66.216 and 2610:a1:1015::fc; pdns216.ultradns.com resolves to 156.154.64.216 and 2001:502:f3ff::fc; pdns216.ultradns.net resolves to 156.154.65.216 and 2610:a1:1014::fc; pdns216.ultradns.org resolves to 156.154.67.216 and 2001:502:4612::fc.