🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`zstacksupport.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:5bad^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:b0de^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.91.173^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.176.222^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ridge.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c8b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ridge.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c38b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ridge.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:238b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ridge.ns.cloudflare.com`
		A	108.162.195.139^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ridge.ns.cloudflare.com`
		A	162.159.44.139^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ridge.ns.cloudflare.com`
		A	172.64.35.139^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ridge.ns.cloudflare.com`
NS	`sarah.ns.cloudflare.com`
		A	2606:4700:50::a29f:26da^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sarah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sarah.ns.cloudflare.com`
		A	108.162.194.218^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	162.159.38.218^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	172.64.34.218^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.91.173, 172.67.176.222
		IPv6 hints	2606:4700:3031::6815:5bad, 2606:4700:3031::ac43:b0de
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOA	`ridge.ns.cloudflare.com`dns@cloudflare.com serial=2419502244

`com`

	DNSSEC	⚠️ Not signed
	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=1794178221

Same first word

zstacksupport.com

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NSridge.ns.cloudflare.com2026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

●NSsarah.ns.cloudflare.com2026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

●A104.21.91.1732026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

●A172.67.176.2222026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

●A2606:4700:3031::6815:5bad2026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

●A2606:4700:3031::ac43:b0de2026-08-22 → 2026-11-08 · 2 obs

● 2026-08-22 14:23:58
● 2026-11-08 22:52:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
zstacksupport.com	sarah.ns.cloudflare.com, ridge.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.218

NS records: sarah.ns.cloudflare.com, ridge.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 144ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.91.173, 172.67.176.222`
AAAA	2	`2606:4700:3031::6815:5bad, 2606:4700:3031::ac43:b0de`
NS	2	`ridge.ns.cloudflare.com, sarah.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ridge.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sarah.ns.cloudflare.com, sarah.ns.cloudflare.com, sarah.ns.cloudflare.com...)

Analysis

IP Addresses

zstacksupport.com directs to four IP numbers, which are 104.21.91.173, 172.67.176.222, 2606:4700:3031::6815:5bad and 2606:4700:3031::ac43:b0de.

amb168t.work, afghanembassyuk.com, cursoneuro.com plus two other host names have IP numbers in common with zstacksupport.com.

Name Servers

zstacksupport.com is served by two delegated name servers, ridge.ns.cloudflare.com and sarah.ns.cloudflare.com.

The name server configuration of zstacksupport.com is shared with other domains, for instance ruangkerja.uk, jameswatsondirector.co.uk, kazuhiro1231.com and two others.

At least some of zstacksupport.com's name servers are shared with other domains, for example bpii.buzz, zpan-library-direct.pages.dev, palpunginstitution.org and two more.

It is common for these name servers to be used in conjunction with the name servers monroe.ns.cloudflare.com, dell.ns.cloudflare.com and coen.ns.cloudflare.com.

Hosts with 6 IP addresses each:

ridge.ns.cloudflare.com carries IP addresses 108.162.195.139, 162.159.44.139 and 172.64.35.139, with 3 other addresses beyond those.

sarah.ns.cloudflare.com carries IP addresses 108.162.194.218, 162.159.38.218 and 172.64.34.218, with 3 other addresses beyond those.

zstacksupport.com - robtex.com