1stack.app - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`1stack.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:1f35^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:aefe^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.53^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.254^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`felicity.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cd4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3d4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`felicity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23d4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`felicity.ns.cloudflare.com`
		A	108.162.195.212^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	162.159.44.212^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	172.64.35.212^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
NS	`ziggy.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ziggy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ziggy.ns.cloudflare.com`
		A	108.162.194.237^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	162.159.38.237^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	172.64.34.237^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽²⁶⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁵⁵⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`brevo-code:9d4e8c6476cf85edb2ea58bf1b124147`
TXT	`google-site-verification=euAuv--Q8rdEBQv8qcGYsrDtzXG8QvQiFxlzK7mLqPY`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.31.53, 172.67.174.254
		IPv6 hints	2606:4700:3037::6815:1f35, 2606:4700:3037::ac43:aefe
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=237, name=cloudflare-ech.com
SOA	`felicity.ns.cloudflare.com`dns@cloudflare.com serial=2414900307

`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

1stack.net

1stack.co

1stack.app

1stack.cn

1stack.ai

1stack.com

Similar names

stack1.site

stack1.top

stack1.vercel.app

task1c.ru

stack1.com.br

stack1.xyz

stack1.de

stack1.pages.dev

stack1.dev

stack1.ph

stack1.io

Previous names

1smart.app

1sms.app

1soft.app

1sol.app

1solution.app

1space.app

1spoc.app

1sports.app

1spot.app

1spotschools.app

1spur.app

1sr.app

1ss365.app

1sspg.app

1st-dev.app

1st-penguin.app

1st-round.app

1st.app

1st1.app

Next names

DNS History

13 records (9 active, 4 former)

●NSfelicity.ns.cloudflare.com2026-09-11 → 2026-09-24 · 2 obs

● 2026-09-11 20:11:42
● 2026-09-24 00:54:16

●NSziggy.ns.cloudflare.com2026-09-11 → 2026-09-24 · 2 obs

● 2026-09-11 20:11:42
● 2026-09-24 00:54:16

●MXroute1.mx.cloudflare.net2026-09-11 → 2026-09-24 · 2 obs

● 2026-09-11 20:11:42
● 2026-09-24 00:54:16

●MXroute2.mx.cloudflare.net2026-09-11 → 2026-09-24 · 2 obs

● 2026-09-11 20:11:42
● 2026-09-24 00:54:16

●MXroute3.mx.cloudflare.net2026-09-11 → 2026-09-24 · 2 obs

● 2026-09-11 20:11:42
● 2026-09-24 00:54:16

●A104.21.31.532026-09-17 → 2026-09-24 · 3 obs

○ 2026-09-11 20:11:42
● 2026-09-17 19:20:30
● 2026-09-24 00:54:16

●A172.67.174.2542026-09-17 → 2026-09-24 · 3 obs

○ 2026-09-11 20:11:42
● 2026-09-17 19:20:30
● 2026-09-24 00:54:16

○A188.114.96.02026-09-11 → 2026-09-11 · 3 obs

● 2026-09-11 20:11:42
○ 2026-09-17 19:20:30
○ 2026-09-24 00:54:16

○A188.114.97.02026-09-11 → 2026-09-11 · 3 obs

● 2026-09-11 20:11:42
○ 2026-09-17 19:20:30
○ 2026-09-24 00:54:16

●A2606:4700:3037::6815:1f352026-09-17 → 2026-09-24 · 3 obs

○ 2026-09-11 20:11:42
● 2026-09-17 19:20:30
● 2026-09-24 00:54:16

●A2606:4700:3037::ac43:aefe2026-09-17 → 2026-09-24 · 3 obs

○ 2026-09-11 20:11:42
● 2026-09-17 19:20:30
● 2026-09-24 00:54:16

○A2a06:98c1:3120::2026-09-11 → 2026-09-11 · 3 obs

● 2026-09-11 20:11:42
○ 2026-09-17 19:20:30
○ 2026-09-24 00:54:16

○A2a06:98c1:3121::2026-09-11 → 2026-09-11 · 3 obs

● 2026-09-11 20:11:42
○ 2026-09-17 19:20:30
○ 2026-09-24 00:54:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
1stack.app	felicity.ns.cloudflare.com, ziggy.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.237

NS records: felicity.ns.cloudflare.com, ziggy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stack.app (unsigned zone)

⏱️ Timing

Total: 1246ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.31.53, 172.67.174.254`
AAAA	2	`2606:4700:3037::6815:1f35, 2606:4700:3037::ac43:aefe`
NS	2	`felicity.ns.cloudflare.com, ziggy.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 1), route1.mx.cloudflare.net (pri: 26)...`
TXT	3	`brevo-code:9d4e8c6476cf85edb2ea58bf1b124, google-site-verification=euAuv--Q8rdEBQv...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`felicity.ns.cloudflare.com dns.cloudflar`

Analysis

IP Addresses

1stack.app has four IP addresses: 104.21.31.53, 172.67.174.254, 2606:4700:3037::6815:1f35 and 2606:4700:3037::ac43:aefe.

Two other host names, along with jobtraining.be, alanyaescortlari.com and talenorivadi.space, also share IP numbers with 1stack.app.

Name Servers

1stack.app uses two name servers for its delegation: felicity.ns.cloudflare.com and ziggy.ns.cloudflare.com.

1stack.app shares its NS records with other domains, for example aasyncstackdev.top, jacksondefirst.com, gdttech.net and two others.

1stack.app shares at least some of its name servers with other domains, including toto77hau.com, oaueduife.name.ng, vxwell-dev.pages.dev and two others.

These name servers are frequently paired with the name servers kanye.ns.cloudflare.com, betty.ns.cloudflare.com and drew.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname felicity.ns.cloudflare.com directs to 108.162.195.212, 162.159.44.212 and 172.64.35.212 along with 3 other IP addresses.

Hostname ziggy.ns.cloudflare.com directs to 108.162.194.237, 162.159.38.237 and 172.64.34.237 along with 3 other IP addresses.

Mail Servers

1stack.app is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between 1stack.app and other domains, including levainlabs.jp, firstprs.store, sillyfella.com and two others.

DNS names with 6 IP addresses:

Hostname route1.mx.cloudflare.net directs to 162.159.205.11, 162.159.205.12 and 162.159.205.13 along with 3 other IP addresses.

Hostname route2.mx.cloudflare.net directs to 162.159.205.17, 162.159.205.18 and 162.159.205.19 along with 3 other IP addresses.

Hostname route3.mx.cloudflare.net directs to 162.159.205.23, 162.159.205.24 and 162.159.205.25 along with 3 other IP addresses.