corteva.ist - robtex.com
corteva.ist
| 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 | ||||||
ist
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.ist ⭐ | ||||||
| NS | a2.nic.ist | ||||||
| NS | b0.nic.ist | ||||||
| NS | c0.nic.ist | ||||||
| SOA | a0.nic.isthostmaster@donuts.email serial=1783166147 | ||||||
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 12:07:20
●NSpdns216.ultradns.com2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 12:07:20
●NSpdns216.ultradns.net2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 12:07:20
●NSpdns216.ultradns.org2026-06-17 → 2026-07-04 · 2 obs
● 2026-07-04 12:07:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ist | a0.nic.ist, a2.nic.ist, b0.nic.ist, c0.nic.ist | 8 records |
| corteva.ist | pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz | - |
✅ Authoritative Response
Server:156.154.66.216
NS records: pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for corteva.ist (unsigned zone)
⏱️ Timing
Total: 316ms | 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: 8
In-bailiwick: 8 (a0.nic.ist, a2.nic.ist, b0.nic.ist...)
Analysis
Name Servers
corteva.ist has four authoritative name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
corteva.ist shares at least some of its name servers with other domains, including styrofoam.lv, propoundmeal.com, cortevaagro.biz and two others.
These name servers are frequently seen alongside pdns5.ultradns.info, pdns1.ultradns.net, 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.