`refurbishedcomputing.com`

DNSSEC	⚠️ Not signed
A	174.136.57.138^{🇺🇸 TierPoint174.136.57.0/24}
		PTR	`coolcloud501.coolcom.com`
NS	`ns777.coolcom.com` ⭐
		A	165.140.159.117^{🇺🇸 AS40476165.140.159.0/24 Scala Hosting LLC}
			PTR	`nameserver300.coolcom.com`
NS	`ns7.coolcom.com` ⚠️ Not in parent delegation
		A	72.249.68.145^{🇺🇸 TierPoint72.249.68.0/24}
			PTR	`nameserver100.coolcom.com`
NS	`ns77.coolcom.com`
		A	209.142.64.139^{🇺🇸 AS40476209.142.64.0/24}
			PTR	`nameserver200.coolcom.com`
MX	`mail.refurbishedcomputing.com` ⭐
		A	174.136.57.138^{🇺🇸 TierPoint174.136.57.0/24}
			PTR	`coolcloud501.coolcom.com`
TXT	`v=spf1 ip4:174.136.57.138 +a +mx ~all`
SOA	`ns7.coolcom.com`serverhenk@coolcom.com 2026-04-11 #1

`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=1778692166

Subdomains

mail.refurbishedcomputing.com

Same first word

refurbishedcomputing.com

DNS History

16 records (5 active, 11 former)

○NSns0.dnsmadeeasy.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

●NSns7.coolcom.com2017-11-04 → 2026-05-13 · 3 obs

○ 2016-12-20 10:22:48
● 2017-11-04 17:27:08
● 2026-05-13 17:14:04

●NSns77.coolcom.com2017-11-04 → 2026-05-13 · 3 obs

○ 2016-12-20 10:22:48
● 2017-11-04 17:27:08
● 2026-05-13 17:14:04

●NSns777.coolcom.com2017-11-04 → 2026-05-13 · 3 obs

○ 2016-12-20 10:22:48
● 2017-11-04 17:27:08
● 2026-05-13 17:14:04

○NSns8.coolcom.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○NSns88.coolcom.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○NSns888.coolcom.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○NSns8888.coolcom.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○NSns88888.coolcom.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

●MXmail.refurbishedcomputing.com2016-12-20 → 2026-05-13 · 2 obs

● 2016-12-20 10:22:48
● 2026-05-13 17:14:04

●A174.136.57.1382026-03-27 → 2026-05-13 · 3 obs

○ 2017-11-04 17:27:08
● 2026-03-27 13:33:46
● 2026-05-13 17:14:04

○A199.103.60.372017-11-04 → 2017-11-04 · 4 obs

○ 2016-12-20 10:22:48
● 2017-11-04 17:27:08
○ 2026-03-27 13:33:46
○ 2026-05-13 17:14:04

○A96.45.82.1502016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○A96.45.82.472016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○A96.45.83.2152016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

○A96.45.83.862016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 10:22:48
○ 2017-11-04 17:27:08
○ 2026-05-13 17:14:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net...	-
refurbishedcomputing.com	ns7.coolcom.com, ns77.coolcom.com	2 records

✅ Authoritative Response

Server:72.249.68.145

NS records: ns7.coolcom.com, ns77.coolcom.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for refurbishedcomputing.com (unsigned zone)

⏱️ Timing

Total: 260ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`174.136.57.138`
NS	3	`ns7.coolcom.com, ns77.coolcom.com...`
MX	1	`mail.refurbishedcomputing.com (pri: 10)`
TXT	1	`v=spf1 ip4:174.136.57.138 +a +mx ~all`
SOA	1	`ns7.coolcom.com serverhenk.coolcom.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns7.coolcom.com, ns77.coolcom.com)

Analysis

Hierarchy

refurbishedcomputing.com is a parent of mail.refurbishedcomputing.com.

IP Addresses

refurbishedcomputing.com points to a single IP number: 174.136.57.138.

Other host names, for instance jocool.com, daam.net, mail.northqueenshub.com, mail.betterton.ca and mx.hilltopdev.com share IP numbers with refurbishedcomputing.com.

Name Servers

The delegation for refurbishedcomputing.com is handled by three name servers: ns777.coolcom.com, ns77.coolcom.com and ns7.coolcom.com.

refurbishedcomputing.com at least partially shares name servers with other domains, for instance snapstic.com, netsymb.com, rhacademy.net, jayesh.ca and sportpourlavie.com.

These name servers are commonly used with ns1.coolcom.com and ns2.coolcom.com.

Host names with one IP number:

ns777.coolcom.com points to 165.140.159.117.

ns77.coolcom.com points to 209.142.64.139.

ns7.coolcom.com points to 72.249.68.145.

Mail Servers

refurbishedcomputing.com is handled by a single mail server, mail.refurbishedcomputing.com.

mail.refurbishedcomputing.com points to a single IP: 174.136.57.138.

refurbishedcomputing.com - robtex.com