🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`systemstacktools.com`

DNSSEC	⚠️ Not signed
NS	`pns71.cloudns.net` ⭐
		A	2a06:fb00:2::1:12^{🇧🇬 CLOUDNSNET2a06:fb00:2::/48 ClouDNS}
			PTR	`pns71.cloudns.net`
		A	45.83.248.12^{🇧🇬 CLOUDNSNET45.83.248.0/24 Cloud DNS Ltd}
			PTR	`pns71.cloudns.net`
NS	`pns72.cloudns.com`
		A	2a06:fb00:2::2:12^{🇧🇬 CLOUDNSNET2a06:fb00:2::/48 ClouDNS}
			PTR	`pns72.cloudns.com`
		A	45.83.249.12^{🇧🇬 CLOUDNSNET45.83.249.0/24 Cloud DNS Ltd}
			PTR	`pns72.cloudns.com`
NS	`pns73.cloudns.net`
		A	2a06:fb00:2::3:12^{🇧🇬 CLOUDNSNET2a06:fb00:2::/48 ClouDNS}
			PTR	`pns73.cloudns.net`
		A	45.83.250.12^{🇧🇬 CLOUDNSNET45.83.250.0/24 Cloud DNS Ltd}
			PTR	`pns73.cloudns.net`
NS	`pns74.cloudns.uk`
		A	2a06:fb00:2::4:12^{🇧🇬 CLOUDNSNET2a06:fb00:2::/48 ClouDNS}
			PTR	`pns74.cloudns.uk`
		A	45.83.251.12^{🇧🇬 CLOUDNSNET45.83.251.0/24 Cloud DNS Ltd}
			PTR	`pns74.cloudns.uk`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c07::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=zkWgleaZMQdEquL7yNhzXmHc6AXtjaS58RYeX0VJoE4`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`pns71.cloudns.net`support@cloudns.net 2026-09-10 #4

`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=1789640883

Same first word

systemstacktools.com

Previous names

Next names

DNS History

10 records (10 active, 0 former)

●NSpns71.cloudns.net2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●NSpns72.cloudns.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●NSpns73.cloudns.net2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●NSpns74.cloudns.uk2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXalt1.aspmx.l.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXalt2.aspmx.l.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXalt3.aspmx.l.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXalt4.aspmx.l.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXaspmx.l.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

●MXsmtp.google.com2026-09-10 → 2026-09-17 · 2 obs

● 2026-09-10 21:41:42
● 2026-09-17 10:30:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
systemstacktools.com	pns71.cloudns.net, pns73.cloudns.net, pns72.cloudns.com, pns74.cloudns.uk	2 records

✅ Authoritative Response

Server:45.83.250.12

NS records: pns71.cloudns.net, pns73.cloudns.net, pns72.cloudns.com, pns74.cloudns.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for systemstacktools.com (unsigned zone)

⏱️ Timing

Total: 589ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`pns74.cloudns.uk, pns73.cloudns.net...`
MX	6	`alt4.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...`
TXT	2	`google-site-verification=zkWgleaZMQdEquL, v=spf1 include:_spf.google.com ~all`
SOA	1	`pns71.cloudns.net support.cloudns.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pns72.cloudns.com, pns72.cloudns.com)

Analysis

Name Servers

The NS records for systemstacktools.com point to four name servers: pns72.cloudns.com, pns71.cloudns.net, pns73.cloudns.net and pns74.cloudns.uk.

At least some of systemstacktools.com's name servers are shared with other domains, for example websitescoreconsultants.com, openborderoutreach.info, runcohleymktg.com and two more.

These name servers tend to co-occur with ns3.fastmaildns.com, ns1.icemaildns.com, ns71.cloudns.net and 7 other name servers in the same DNS delegations.

Four hostnames, each resolving to a pair of IP addresses: pns72.cloudns.com directs to 45.83.249.12 and 2a06:fb00:2::2:12; pns71.cloudns.net directs to 45.83.248.12 and 2a06:fb00:2::1:12; pns73.cloudns.net directs to 45.83.250.12 and 2a06:fb00:2::3:12; pns74.cloudns.uk directs to 45.83.251.12 and 2a06:fb00:2::4:12.

Mail Servers

systemstacktools.com uses 6 mail servers for delivery: smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other.

There is at least a partial MX overlap between systemstacktools.com and other domains, including pestpros.ie, educater.com.au, oldliquorcompany.com and two others.

These mail servers frequently co-occur with the mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two others.

DNS names with 9 IP addresses:

smtp.google.com resolves to 142.251.16.26, 142.251.163.26, 142.251.163.27 and 6 other IP addresses.

Host names that have two IP addresses:

aspmx.l.google.com points to 142.251.163.27 and 2607:f8b0:4004:c07::1a.

alt1.aspmx.l.google.com points to 192.178.234.26 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1b.

smtp.google.com and aspmx.l.google.com are host names that each point to 142.251.163.27 IP addresses.