`goldstandarddiagnostics.us`

DNSSEC	🔒 Signed (DS record present)
A	75.2.40.102^{🇺🇸 Amazon75.2.32.0/20}
		PTR	`aa077893eb63b96e1.awsglobalaccelerator.com`
A	166.117.244.14^{🇺🇸 Amazon166.117.240.0/20}
NS	`nsa.perf1.fr` ⭐
		A	2a01:c8:100::100^{🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1}
			PTR	`nsa.perf1.fr`
		A	81.92.94.100^{🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1}
			PTR	`nsa.perf1.fr`
NS	`nsb.perf1.com`
		A	2a01:c8:101::100^{🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1}
			PTR	`nsb.perf1.com`
		A	81.92.95.100^{🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1}
			PTR	`nsb.perf1.com`
NS	`nsc.perf1.com`
		A	2a09:35c0:102::100^{🇫🇷 NAMESHIELDGRP2a09:35c0:100::/40 NAMESHIELD ANYCAST1-2}
			PTR	`nsc.perf1.com`
		A	152.89.172.100^{🇫🇷 NAMESHIELDGRP152.89.172.0/23 NAMESHIELD ANYCAST1-2}
			PTR	`nsc.perf1.com`
TXT	`v=spf1 -all`
SOA	`nsa.perf1.fr`technical@nameshield.net 2026-07-23 #1

`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=1784954192

Same first word

goldstandarddiagnostics.es

goldstandarddiagnostics.fi

goldstandarddiagnostics.us

goldstandarddiagnostics.cn

goldstandarddiagnostics.net

goldstandarddiagnostics.org

goldstandarddiagnostics.fr

goldstandarddiagnostics.eu

goldstandarddiagnostics.it

goldstandarddiagnostics.com

DNS History

6 records (5 active, 1 former)

●NSnsa.perf1.fr2026-04-02 → 2026-07-25 · 2 obs

● 2026-04-02 12:15:30
● 2026-07-25 05:24:52

●NSnsb.perf1.com2026-04-02 → 2026-07-25 · 2 obs

● 2026-04-02 12:15:30
● 2026-07-25 05:24:52

●NSnsc.perf1.com2026-04-02 → 2026-07-25 · 2 obs

● 2026-04-02 12:15:30
● 2026-07-25 05:24:52

○A13.248.153.402026-04-02 → 2026-05-14 · 4 obs

● 2026-04-02 12:15:30
● 2026-05-14 22:19:22
○ 2026-05-30 20:01:10
○ 2026-07-25 05:24:52

●A166.117.244.142026-05-30 → 2026-07-25 · 9 obs

○ 2026-05-14 22:19:22
● 2026-05-30 20:01:10
○ 2026-06-30 11:04:54
● 2026-06-30 23:04:54
○ 2026-07-13 14:27:48
● 2026-07-13 20:25:34
○ 2026-07-18 02:26:16
● 2026-07-18 08:24:32
● 2026-07-25 05:24:52

●A75.2.40.1022026-05-30 → 2026-07-25 · 9 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	w.cctld.us, y.cctld.us, m.cctld.us, k.cctld.us...	-
goldstandarddiagnostics.us	nsa.perf1.fr, nsc.perf1.com, nsb.perf1.com	-

✅ Authoritative Response

Server:152.89.172.100

NS records: nsa.perf1.fr, nsc.perf1.com, nsb.perf1.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 949ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`166.117.244.14, 75.2.40.102`
NS	3	`nsa.perf1.fr, nsb.perf1.com...`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`nsa.perf1.fr technical.nameshield.net`

Analysis

IP Addresses

goldstandarddiagnostics.us directs to two IP numbers, 75.2.40.102 and 166.117.244.14

eurofins.at, eurofins.co.kr, eurofins-pathologie.fr and two other host names share IP numbers with goldstandarddiagnostics.us.

Name Servers

goldstandarddiagnostics.us is delegated to three name servers: nsb.perf1.com, nsc.perf1.com and nsa.perf1.fr.

goldstandarddiagnostics.us partially shares its NS delegation with several other domains, including iscom.mobi, leroymerlin.co, mitsubishi-motors.fr and two others.

In DNS configurations, these name servers often share authority with ns0.infravesi.com, ns1.infravesi.com, nsz.perf1.com and 7 other name servers.

nsb.perf1.com, nsc.perf1.com and nsa.perf1.fr each resolve to two IP addresses: nsb.perf1.com resolves to 81.92.95.100 and 2a01:c8:101::100; nsc.perf1.com resolves to 152.89.172.100 and 2a09:35c0:102::100; nsa.perf1.fr resolves to 81.92.94.100 and 2a01:c8:100::100.

goldstandarddiagnostics.us - robtex.com