`usedcomputerbuy.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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.net`nstld@verisign-grs.com serial=1776200192

Same first word

usedcomputerbuy.com

DNS History

20 records (3 active, 17 former)

○NSdarwin.ns.cloudflare.com2026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

●NSexpire1.gname-dns.com2026-04-14 → 2026-04-14 · 2 obs

○ 2026-03-24 13:26:18
● 2026-04-14 21:06:36

●NSexpire2.gname-dns.com2026-04-14 → 2026-04-14 · 2 obs

○ 2026-03-24 13:26:18
● 2026-04-14 21:06:36

○NSjade.ns.cloudflare.com2026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○NSns1647.ztomy.com2015-07-01 → 2016-04-07 · 4 obs

● 2015-07-01 17:10:34
● 2016-04-07 21:32:16
○ 2016-11-25 08:15:08
○ 2026-04-14 21:06:36

○NSns2647.ztomy.com2015-07-01 → 2016-04-07 · 4 obs

● 2015-07-01 17:10:34
● 2016-04-07 21:32:16
○ 2016-11-25 08:15:08
○ 2026-04-14 21:06:36

○NSsk.s5.ans1.ns122.ztomy.com2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-07 21:32:16
● 2016-11-25 08:15:08
○ 2017-10-05 07:57:20
○ 2026-04-14 21:06:36

○NSsk.s5.ans2.ns122.ztomy.com2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-07 21:32:16
● 2016-11-25 08:15:08
○ 2017-10-05 07:57:20
○ 2026-04-14 21:06:36

○NSsk.s5.cm.ns1.37.ztomy.com2017-10-05 → 2017-10-05 · 4 obs

○ 2016-11-25 08:15:08
● 2017-10-05 07:57:20
○ 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○NSsk.s5.cm.ns2.37.ztomy.com2017-10-05 → 2017-10-05 · 4 obs

○ 2016-11-25 08:15:08
● 2017-10-05 07:57:20
○ 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○A104.21.69.1972026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○A141.8.226.152015-07-01 → 2016-04-07 · 4 obs

● 2015-07-01 17:10:34
● 2016-04-07 21:32:16
○ 2016-11-25 08:15:08
○ 2026-04-14 21:06:36

○A172.67.212.2032026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○A208.91.197.442016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-07 21:32:16
● 2016-11-25 08:15:08
○ 2017-10-05 07:57:20
○ 2026-04-14 21:06:36

○A208.91.197.542017-10-05 → 2017-10-05 · 4 obs

○ 2016-11-25 08:15:08
● 2017-10-05 07:57:20
○ 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○A2606:4700:3032::ac43:d4cb2026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

○A2606:4700:3037::6815:45c52026-03-24 → 2026-03-24 · 3 obs

○ 2017-10-05 07:57:20
● 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

●CNAMEexp.gs-cdn.com2026-04-14 → 2026-04-14 · 1 obs

● 2026-04-14 21:06:36

○PTRsk.s5.ans1.ns122.ztomy.com2016-11-25 → 2016-11-25 · 3 obs

● 2016-11-25 08:15:08
○ 2017-10-05 07:57:20
○ 2026-04-14 21:06:36

○PTRsk.s5.cm.ns1.37.ztomy.com2017-10-05 → 2017-10-05 · 4 obs

○ 2016-11-25 08:15:08
● 2017-10-05 07:57:20
○ 2026-03-24 13:26:18
○ 2026-04-14 21:06:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...	-
usedcomputerbuy.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usedcomputerbuy.com (unsigned zone)

⏱️ Timing

Total: 645ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

usedcomputerbuy.com points to a single IP address: 172.65.190.172.

Other host names, for example 0syn.com, 5510000.cc and exp.gs-cdn.com share IPs with usedcomputerbuy.com.

usedcomputerbuy.com - robtex.com