flexstack.app - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`flexstack.app`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3032::6815:5ba3^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:af88^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.91.163^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.136^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`noah.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c185^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`noah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2185^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`noah.ns.cloudflare.com`
		A	108.162.193.133^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	172.64.33.133^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	173.245.59.133^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
NS	`sara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a90^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c090^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2090^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sara.ns.cloudflare.com`
		A	108.162.192.144^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sara.ns.cloudflare.com`
		A	172.64.32.144^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sara.ns.cloudflare.com`
		A	173.245.58.144^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sara.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.91.163, 172.67.175.136
		IPv6 hints	2606:4700:3032::6815:5ba3, 2606:4700:3037::ac43:af88
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=159, name=cloudflare-ech.com
SOA	`noah.ns.cloudflare.com`dns@cloudflare.com serial=2414483433

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

flexstack.run

flexstack.tech

flexstack.app

flexstack.com

flexstack.ai

flexstack.co

flexstack.xyz

flexstack.org

flexstack.online

flexstack.nl

flexstack.io

flexstack.eu

Similar names

stackflex.io

Previous names

Next names

DNS History

10 records (6 active, 4 former)

●NSnoah.ns.cloudflare.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 10:48:40
● 2026-09-13 01:42:20

●NSsara.ns.cloudflare.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 10:48:40
● 2026-09-13 01:42:20

●A104.21.91.1632026-09-10 → 2026-09-13 · 3 obs

○ 2026-09-03 10:48:40
● 2026-09-10 19:29:38
● 2026-09-13 01:42:20

●A172.67.175.1362026-09-10 → 2026-09-13 · 3 obs

○ 2026-09-03 10:48:40
● 2026-09-10 19:29:38
● 2026-09-13 01:42:20

○A188.114.96.02026-09-03 → 2026-09-03 · 3 obs

● 2026-09-03 10:48:40
○ 2026-09-10 19:29:38
○ 2026-09-13 01:42:20

○A188.114.97.02026-09-03 → 2026-09-03 · 3 obs

● 2026-09-03 10:48:40
○ 2026-09-10 19:29:38
○ 2026-09-13 01:42:20

●A2606:4700:3032::6815:5ba32026-09-10 → 2026-09-13 · 3 obs

○ 2026-09-03 10:48:40
● 2026-09-10 19:29:38
● 2026-09-13 01:42:20

●A2606:4700:3037::ac43:af882026-09-10 → 2026-09-13 · 3 obs

○ 2026-09-03 10:48:40
● 2026-09-10 19:29:38
● 2026-09-13 01:42:20

○A2a06:98c1:3120::2026-09-03 → 2026-09-03 · 3 obs

● 2026-09-03 10:48:40
○ 2026-09-10 19:29:38
○ 2026-09-13 01:42:20

○A2a06:98c1:3121::2026-09-03 → 2026-09-03 · 3 obs

● 2026-09-03 10:48:40
○ 2026-09-10 19:29:38
○ 2026-09-13 01:42:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
flexstack.app	noah.ns.cloudflare.com, sara.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.133

NS records: noah.ns.cloudflare.com, sara.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 671ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.175.136, 104.21.91.163`
AAAA	2	`2606:4700:3037::ac43:af88, 2606:4700:3032::6815:5ba3`
NS	2	`noah.ns.cloudflare.com, sara.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`noah.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

flexstack.app points to the four IP addresses 104.21.91.163, 172.67.175.136, 2606:4700:3032::6815:5ba3 and 2606:4700:3037::ac43:af88.

Additional host names — eyesouth.co, impressyk.cn, officialtst4d1.skin and two others — share IP numbers with flexstack.app.

Name Servers

flexstack.app uses two name servers for its delegation: noah.ns.cloudflare.com and sara.ns.cloudflare.com.

flexstack.app shares its name server setup with other domains, including bordaycreabysadys.com, play666.land, novaideiatecnologia.pages.dev and two others.

There is at least partial name server overlap between flexstack.app and other domains — bbzb19.today, manageyourgifts45.com, gap-line-drawing-recognize.pages.dev and two more among them.

Host names with 6 IP numbers:

Hostname noah.ns.cloudflare.com directs to 108.162.193.133, 172.64.33.133 and 173.245.59.133 along with 3 other IP addresses.

Hostname sara.ns.cloudflare.com directs to 108.162.192.144, 172.64.32.144 and 173.245.58.144 along with 3 other IP addresses.