prequalificationportal.com - robtex.com
prequalificationportal.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar | ||||||
| PTR | crs.ultradns.net | ||||||
| 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 2019-01-15 #21 | ||||||
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=1778509556 | ||||||
Same first word
prequalificationportal.com |
DNS History
9 records (5 active, 4 former)
○NSns1auth.tls.net2015-07-16 → 2018-10-05 · 4 obs
● 2018-10-05 07:06:24
○ 2026-05-11 14:53:44
○ 2026-05-11 14:53:46
○NSns2auth.tls.net2015-07-16 → 2018-10-05 · 4 obs
● 2018-10-05 07:06:24
○ 2026-05-11 14:53:44
○ 2026-05-11 14:53:46
○NSns3auth.tls.net2015-07-16 → 2018-10-05 · 4 obs
● 2018-10-05 07:06:24
○ 2026-05-11 14:53:44
○ 2026-05-11 14:53:46
●NSpdns216.ultradns.biz2026-05-11 → 2026-05-11 · 3 obs
● 2026-05-11 14:53:44
● 2026-05-11 14:53:46
●NSpdns216.ultradns.com2026-05-11 → 2026-05-11 · 3 obs
● 2026-05-11 14:53:44
● 2026-05-11 14:53:46
●NSpdns216.ultradns.net2026-05-11 → 2026-05-11 · 3 obs
● 2026-05-11 14:53:44
● 2026-05-11 14:53:46
●NSpdns216.ultradns.org2026-05-11 → 2026-05-11 · 3 obs
● 2026-05-11 14:53:44
● 2026-05-11 14:53:46
●A204.74.99.1002026-05-11 → 2026-05-11 · 3 obs
● 2026-05-11 14:53:44
● 2026-05-11 14:53:46
○A23.96.209.1552015-07-16 → 2018-10-05 · 4 obs
● 2018-10-05 07:06:24
○ 2026-05-11 14:53:44
○ 2026-05-11 14:53:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| prequalificationportal.com | pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.64.216
NS records: pdns216.ultradns.net, pdns216.ultradns.com, pdns216.ultradns.biz, pdns216.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prequalificationportal.com (unsigned zone)
⏱️ Timing
Total: 416ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.74.99.100 |
| 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
IP Addresses
prequalificationportal.com points to a single IP address: 204.74.99.100.
Other host names such as expediatravels.co.ag, zmedica.com, abouthow.com, www.hitachi.be and payrolllink.com share IP numbers with prequalificationportal.com.
Name Servers
prequalificationportal.com is delegated to four name servers: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.
At least part of the name servers for prequalificationportal.com are shared with other domains, for instance dursban.com, dithane.eu, corian.uk, brevant.com and powercoretechnology.com.
These name servers are commonly used together with the name servers pdns5.ultradns.info, pdns1.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns6.ultradns.co.uk and pdns2.ultradns.net.
Host names with two IP numbers:
pdns216.ultradns.biz points to: 2610:a1:1015::fc and 156.154.66.216
pdns216.ultradns.com points to: 2001:502:f3ff::fc and 156.154.64.216
pdns216.ultradns.net points to: 2610:a1:1014::fc and 156.154.65.216
pdns216.ultradns.org points to: 2001:502:4612::fc and 156.154.67.216