`circuitboardtechnologies.us`

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`
SOA	`pdns216.ultradns.com`contact@dupont.com 2018-11-15 #3

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1783741958

Same first word

circuitboardtechnologies.com.cn

circuitboardtechnologies.us

DNS History

11 records (5 active, 6 former)

○NSmantdnsi1.dow.com2015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

●NSpdns216.ultradns.biz2026-06-17 → 2026-07-11 · 3 obs

○ 2018-07-15 08:48:16
● 2026-06-17 18:27:52
● 2026-07-11 04:18:58

●NSpdns216.ultradns.com2026-06-17 → 2026-07-11 · 3 obs

○ 2018-07-15 08:48:16
● 2026-06-17 18:27:52
● 2026-07-11 04:18:58

●NSpdns216.ultradns.net2026-06-17 → 2026-07-11 · 3 obs

○ 2018-07-15 08:48:16
● 2026-06-17 18:27:52
● 2026-07-11 04:18:58

●NSpdns216.ultradns.org2026-06-17 → 2026-07-11 · 3 obs

○ 2018-07-15 08:48:16
● 2026-06-17 18:27:52
● 2026-07-11 04:18:58

○NStnntdnsi1.dow.com2015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

○NStxntdnsi1.dow.com2015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

○MXextho10.rohmhaas.com2015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

○MXextho11.rohmhaas.com2015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

●A204.74.99.1002026-06-17 → 2026-07-11 · 3 obs

○ 2018-07-15 08:48:16
● 2026-06-17 18:27:52
● 2026-07-11 04:18:58

○A216.99.82.812015-08-08 → 2018-07-15 · 4 obs

● 2015-08-08 18:11:52
● 2018-07-15 08:48:16
○ 2026-06-17 18:27:52
○ 2026-07-11 04:18:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	f.cctld.us, x.cctld.us, y.cctld.us, n.cctld.us...	-
circuitboardtechnologies.us	pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz, pdns216.ultradns.com	-

✅ Authoritative Response

Server:156.154.65.216

NS records: pdns216.ultradns.net, pdns216.ultradns.org, pdns216.ultradns.biz, pdns216.ultradns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circuitboardtechnologies.us (unsigned zone)

⏱️ Timing

Total: 1154ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.74.99.100`
NS	4	`pdns216.ultradns.biz, pdns216.ultradns.com...`
SOA	1	`pdns216.ultradns.com contact.dupont.com`

Analysis

IP Addresses

circuitboardtechnologies.us has exactly one IP address — 204.74.99.100.

expidia.vn, downtonabbeygroups.com, waterair.lt plus two other host names have IP numbers in common with circuitboardtechnologies.us.

Name Servers

Four name servers handle the delegation for circuitboardtechnologies.us: pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org.

circuitboardtechnologies.us has at least partial name server overlap with other domains, such as cortevaagriscience.cl, corteva.soy, coriancn.com and two others.

pdns5.ultradns.info, pdns1.ultradns.net and pdns2.ultradns.net — plus 3 other name servers — are commonly paired with these name servers.

pdns216.ultradns.biz, pdns216.ultradns.com, pdns216.ultradns.net and pdns216.ultradns.org all point to exactly two IP numbers each: pdns216.ultradns.biz → 156.154.66.216 and 2610:a1:1015::fc; pdns216.ultradns.com → 156.154.64.216 and 2001:502:f3ff::fc; pdns216.ultradns.net → 156.154.65.216 and 2610:a1:1014::fc; pdns216.ultradns.org → 156.154.67.216 and 2001:502:4612::fc.

circuitboardtechnologies.us - robtex.com