stacksystem.co - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stacksystem.co`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:d2cd^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:176e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.110^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.210.205^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`daphne.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26a9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`daphne.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`daphne.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`daphne.ns.cloudflare.com`
		A	108.162.194.169^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`daphne.ns.cloudflare.com`
		A	162.159.38.169^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`daphne.ns.cloudflare.com`
		A	172.64.34.169^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`daphne.ns.cloudflare.com`
NS	`vern.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	2a00:1450:4009:c19::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrp-in-f26.1e100.net`
		A	172.217.76.26^{🇺🇸 Google172.217.76.0/24}
			PTR	`yulhrp-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
TXT	`google-site-verification=mBHYo6XFPHqIfs6lciIwxlYBSnKZqp8QCUfVHwABEjU`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.23.110, 172.67.210.205
		IPv6 hints	2606:4700:3036::ac43:d2cd, 2606:4700:3037::6815:176e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=83, name=cloudflare-ech.com
SOA	`daphne.ns.cloudflare.com`dns@cloudflare.com serial=2412522947

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759740010

Previously NS for

stacksystem.co

Previously MX for

stacksystem.co

Same first word

stacksystem.co.jp

stacksystem.co

stacksystem.jp

stacksystem.com

Similar names

tacksystems.io

systemstack.ai

systemstack.org

systemstack.net

systemstack.tools

systemstack.co.jp

Previous names

Next names

DNS History

17 records (7 active, 10 former)

●NSdaphne.ns.cloudflare.com2026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

○NSns1.dns-parking.com2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

○NSns2.dns-parking.com2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

○NSstacksystem.co2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

●NSvern.ns.cloudflare.com2026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

○MXmx1.hostinger.in2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

○MXmx2.hostinger.in2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

●MXsmtp.google.com2026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

○MXstacksystem.co2020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

●A104.21.23.1102026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

○A104.31.66.1502020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

○A104.31.67.1502020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

●A172.67.210.2052026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

○A2606:4700:30::681f:42962020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

○A2606:4700:30::681f:43962020-01-05 → 2020-01-05 · 3 obs

● 2020-01-05 15:19:06
○ 2026-08-21 22:49:42
○ 2026-08-23 06:36:36

●A2606:4700:3036::ac43:d2cd2026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

●A2606:4700:3037::6815:176e2026-08-21 → 2026-08-23 · 3 obs

○ 2020-01-05 15:19:06
● 2026-08-21 22:49:42
● 2026-08-23 06:36:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
stacksystem.co	vern.ns.cloudflare.com, daphne.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.169

NS records: vern.ns.cloudflare.com, daphne.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stacksystem.co (unsigned zone)

⏱️ Timing

Total: 708ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.23.110, 172.67.210.205`
AAAA	2	`2606:4700:3036::ac43:d2cd, 2606:4700:3037::6815:176e`
NS	2	`daphne.ns.cloudflare.com, vern.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=mBHYo6XFPHqIfs6, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`daphne.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

stacksystem.co has four IP addresses: 104.21.23.110, 172.67.210.205, 2606:4700:3036::ac43:d2cd and 2606:4700:3037::6815:176e.

vertmix.com, cervivor.org, ns.akcakocatv.com plus two other host names have IP numbers in common with stacksystem.co.

Name Servers

stacksystem.co uses two name servers for its delegation: daphne.ns.cloudflare.com and vern.ns.cloudflare.com.

The name server configuration of stacksystem.co is shared with other domains, for instance mycedarpromo.co, gallaghermohan.net, ititid.se and two others.

stacksystem.co has at least partial name server overlap with other domains, such as borjonwinery.com, crudewood.workers.dev, podk888-auto.com and two others.

It is common to see these name servers used together with name servers aldo.ns.cloudflare.com and bailey.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname daphne.ns.cloudflare.com directs to 108.162.194.169, 162.159.38.169 and 172.64.34.169 along with 3 other IP addresses.

Hostname vern.ns.cloudflare.com directs to 108.162.193.243, 172.64.33.243 and 173.245.59.243 along with 3 other IP addresses.

Mail Servers

stacksystem.co uses one mail server — smtp.google.com.

The mail server setup of stacksystem.co matches that of other domains such as flowbysyl.nl, epicenternetwork.eu, diocesisdealcala.es and two others.

At least some of the mail servers used by stacksystem.co are shared with other domains: hireilinvesthub.com, abeb.fr, office713.com and two others among them.

It is common to find these mail servers paired with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com, as well as two others.

smtp.google.com has 6 IP addresses: 172.217.76.26, 192.178.223.26, 192.178.223.27 plus 3 more.