cortevaagriscience.science - robtex.com
cortevaagriscience.science
| 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 | ||||||
science
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nic.science ⭐ | ||||||
| NS | a.nic.science | ||||||
| NS | b.nic.science | ||||||
| NS | c.nic.science | ||||||
| NS | ns2.dns.nic.science | ||||||
| NS | ns3.dns.nic.science | ||||||
| SOA | ns1.dns.nic.scienceadmin@tldns.godaddy serial=1783154989 | ||||||
Same first word
DNS History
4 records (4 active, 0 former)
●NSpdns216.ultradns.biz2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 10:47:20
●NSpdns216.ultradns.com2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 10:47:20
●NSpdns216.ultradns.net2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 10:47:20
●NSpdns216.ultradns.org2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 10:47:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| science | a.nic.science, b.nic.science, c.nic.science, ns1.dns.nic.science... | 12 records |
| cortevaagriscience.science | pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org | - |
✅ Authoritative Response
Server:156.154.67.216
NS records: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortevaagriscience.science (unsigned zone)
⏱️ Timing
Total: 296ms | 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: 12
In-bailiwick: 12 (a.nic.science, a.nic.science, b.nic.science...)
Analysis
Name Servers
The domain cortevaagriscience.science is delegated to these four name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
cortevaagriscience.science partially shares its NS delegation with several other domains, including dupont.giving, corianquartz.co.uk, coriandesign.xyz and two others.
In DNS configurations, these name servers often share authority with pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net 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.