🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`flowstack.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2e3e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a821^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.62^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.168.33^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`june.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`june.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`june.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`june.ns.cloudflare.com`
		A	108.162.192.176^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`june.ns.cloudflare.com`
		A	172.64.32.176^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`june.ns.cloudflare.com`
		A	173.245.58.176^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`june.ns.cloudflare.com`
NS	`salvador.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c64^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`salvador.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c364^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`salvador.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2364^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`salvador.ns.cloudflare.com`
		A	108.162.195.100^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`salvador.ns.cloudflare.com`
		A	162.159.44.100^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`salvador.ns.cloudflare.com`
		A	172.64.35.100^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`salvador.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.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::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
MX	`mxa.mailgun.org`⁽¹⁰⁾
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org`⁽¹⁰⁾
		A	34.36.182.139^{🇺🇸 Google34.32.0.0/11}
			PTR	`139.182.36.34.bc.googleusercontent.com`
TXT	`brevo-code:2cfda6469d2686d7a0f45604eb5ff0b1`
TXT	`brevo-code:7dfee231447c0a49b07363c055a40a38`
TXT	`firebase=notes-app-57320`
TXT	`google-site-verification=CkZo2Y86c5NS-oLrYLRHRC25nIge6L4B0Olzek0GEZ8`
TXT	`google-site-verification=oGnat1Cuhz68JsF-AUjslu98Ogr-MJeKAT9noqIL-jU`
TXT	`hosting-site=notes-app-57320`
TXT	`klaviyo-site-verification=TJWXji`
TXT	`v=spf1 include:_spf.firebasemail.com ~all`
TXT	`v=spf1 include:_spf.google.com -all`
TXT	`v=spf1 include:mailgun.org ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.62, 172.67.168.33
		IPv6 hints	2606:4700:3030::6815:2e3e, 2606:4700:3035::ac43:a821
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com
SOA	`june.ns.cloudflare.com`dns@cloudflare.com serial=2413405701

`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

flowstack.com.au

flowstack.icu

flowstack.kr

flowstack.studio

flowstack.run

flowstack.lat

flowstack.com

flowstack.pages.dev

flowstack.cyou

flowstack.solutions

flowstack.app

Similar names

Previous names

Next names

DNS History

17 records (13 active, 4 former)

●NSjune.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●NSsalvador.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXalt1.aspmx.l.google.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXalt2.aspmx.l.google.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXalt3.aspmx.l.google.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXalt4.aspmx.l.google.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXaspmx.l.google.com2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXmxa.mailgun.org2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●MXmxb.mailgun.org2026-08-29 → 2026-08-30 · 2 obs

● 2026-08-29 03:32:42
● 2026-08-30 16:46:48

●A104.21.46.622026-08-30 → 2026-08-30 · 3 obs

○ 2026-08-29 03:32:42
● 2026-08-30 14:37:36
● 2026-08-30 16:46:48

●A172.67.168.332026-08-30 → 2026-08-30 · 3 obs

○ 2026-08-29 03:32:42
● 2026-08-30 14:37:36
● 2026-08-30 16:46:48

○A188.114.96.02026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:32:42
○ 2026-08-30 14:37:36
○ 2026-08-30 16:46:48

○A188.114.97.02026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:32:42
○ 2026-08-30 14:37:36
○ 2026-08-30 16:46:48

●A2606:4700:3030::6815:2e3e2026-08-30 → 2026-08-30 · 3 obs

○ 2026-08-29 03:32:42
● 2026-08-30 14:37:36
● 2026-08-30 16:46:48

●A2606:4700:3035::ac43:a8212026-08-30 → 2026-08-30 · 3 obs

○ 2026-08-29 03:32:42
● 2026-08-30 14:37:36
● 2026-08-30 16:46:48

○A2a06:98c1:3120::2026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:32:42
○ 2026-08-30 14:37:36
○ 2026-08-30 16:46:48

○A2a06:98c1:3121::2026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:32:42
○ 2026-08-30 14:37:36
○ 2026-08-30 16:46:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
flowstack.app	salvador.ns.cloudflare.com, june.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.100

NS records: salvador.ns.cloudflare.com, june.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flowstack.app (unsigned zone)

⏱️ Timing

Total: 903ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.168.33, 104.21.46.62`
AAAA	2	`2606:4700:3035::ac43:a821, 2606:4700:3030::6815:2e3e`
NS	2	`june.ns.cloudflare.com, salvador.ns.cloudflare.com`
MX	7	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	10	`brevo-code:2cfda6469d2686d7a0f45604eb5ff, brevo-code:7dfee231447c0a49b07363c055a40...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`june.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

flowstack.app directs to four IP numbers, which are 104.21.46.62, 172.67.168.33, 2606:4700:3030::6815:2e3e and 2606:4700:3035::ac43:a821.

Two other host names, along with jpfair.com, kokaneehomes.com and leno.fr, also share IP numbers with flowstack.app.

Name Servers

flowstack.app is served by two delegated name servers, june.ns.cloudflare.com and salvador.ns.cloudflare.com.

flowstack.app shares its NS records with other domains, for example sakhaayurved.com, pilatebook.com, petrukslot.pages.dev and two others.

There is at least partial name server overlap between flowstack.app and other domains — iagodmm.workers.dev, 1kankan.com, velvetcirclesolution.it and two more among them.

The name servers graham.ns.cloudflare.com, piers.ns.cloudflare.com and georgia.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

june.ns.cloudflare.com carries IP addresses 108.162.192.176, 172.64.32.176 and 173.245.58.176, with 3 other addresses beyond those.

salvador.ns.cloudflare.com carries IP addresses 108.162.195.100, 162.159.44.100 and 172.64.35.100, with 3 other addresses beyond those.

Mail Servers

flowstack.app accepts email via 7 mail servers: mxa.mailgun.org, mxb.mailgun.org, aspmx.l.google.com and 4 other.

There is at least a partial MX overlap between flowstack.app and other domains, including rivetgun.ai, braws.org, boardmatters.ca and two others.

These mail servers tend to appear in combination with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.

Host names that have two IP addresses:

aspmx.l.google.com maps to two IP addresses — 172.253.62.27 and 2607:f8b0:4004:c21::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1a.

Host names that point to one IP address:

mxa.mailgun.org points to the IP address 34.149.254.5.

mxb.mailgun.org points to the IP address 34.36.182.139.

flowstack.app - robtex.com

flowstack.app

app

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`flowstack.app`

`app`