corteva.st - robtex.com
corteva.st
| 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 | ||||||
st
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.bahnhof.net ⭐ ⚠️ Not in parent delegation | ||||||
| NS | dns-st.bahnhof.net ⚠️ Not in parent delegation | ||||||
| NS | southeast-2.dns-au.st | ||||||
| NS | west-2.dns-us.st | ||||||
| SOA | ns1.bahnhof.nethostmaster@nic.st serial=2511381399 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSpdns216.ultradns.biz2026-07-03 → 2026-07-06 · 2 obs
● 2026-07-06 02:24:32
●NSpdns216.ultradns.com2026-07-03 → 2026-07-06 · 2 obs
● 2026-07-06 02:24:32
●NSpdns216.ultradns.net2026-07-03 → 2026-07-06 · 2 obs
● 2026-07-06 02:24:32
●NSpdns216.ultradns.org2026-07-03 → 2026-07-06 · 2 obs
● 2026-07-06 02:24:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| st | dns-st.bahnhof.net, west-2.dns-us.st, southeast-2.dns-au.st, ns1.bahnhof.net | 8 records |
| corteva.st | pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org | - |
✅ Authoritative Response
Server:156.154.66.216
NS records: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net, pdns216.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for st (unsigned zone)
⏱️ Timing
Total: 1049ms | 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: 4 (west-2.dns-us.st, southeast-2.dns-au.st, west-2.dns-us.st...)
Out-of-bailiwick: 4 (dns-st.bahnhof.net, ns1.bahnhof.net, dns-st.bahnhof.net...)
Analysis
Name Servers
corteva.st has four authoritative name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
corteva.st partially shares its NS delegation with several other domains, including corteva.me, cortevaagriscience.social, corteva.co.za 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.