🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stackademy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:2bc1^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:b851^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.193^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.81^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ada.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c036^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ada.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2036^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ada.ns.cloudflare.com`
		A	108.162.192.54^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	172.64.32.54^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	173.245.58.54^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
NS	`seth.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`seth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`seth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`seth.ns.cloudflare.com`
		A	108.162.193.142^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`seth.ns.cloudflare.com`
		A	172.64.33.142^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`seth.ns.cloudflare.com`
		A	173.245.59.142^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`seth.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`google-site-verification=6tm6f2owwdztq9mSZ3CVqmS06HbMTE65X6J2do7lTX8`
TXT	`v=spf1 include:spf.mandrillapp.com ?all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.193, 172.67.184.81
		IPv6 hints	2606:4700:3032::6815:2bc1, 2606:4700:3036::ac43:b851
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=86, name=cloudflare-ech.com
SOA	`ada.ns.cloudflare.com`dns@cloudflare.com serial=2411405466

`com`

	DNSSEC	🔒 Signed (DS record present)
	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=1787911625

Subdomains

www.stackademy.com

Same first word

stackademy.com

Similar names

sktacademy.ie

kstacademy.in

tksacademy.com

stkacademy.com

sktacademy.co.kr

ktsacademy.net

ktsacademy.com

Previous names

Next names

DNS History

17 records (11 active, 6 former)

●NSada.ns.cloudflare.com2026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

○NSlee.ns.cloudflare.com2015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

○NSlily.ns.cloudflare.com2015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

●NSseth.ns.cloudflare.com2026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

●MXalt1.aspmx.l.google.com2015-08-21 → 2026-08-28 · 2 obs

● 2015-08-21 17:53:44
● 2026-08-28 10:30:46

●MXalt2.aspmx.l.google.com2015-08-21 → 2026-08-28 · 2 obs

● 2015-08-21 17:53:44
● 2026-08-28 10:30:46

●MXaspmx.l.google.com2015-08-21 → 2026-08-28 · 2 obs

● 2015-08-21 17:53:44
● 2026-08-28 10:30:46

●MXaspmx2.googlemail.com2015-08-21 → 2026-08-28 · 2 obs

● 2015-08-21 17:53:44
● 2026-08-28 10:30:46

●MXaspmx3.googlemail.com2015-08-21 → 2026-08-28 · 2 obs

● 2015-08-21 17:53:44
● 2026-08-28 10:30:46

●A104.21.43.1932026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

○A104.28.14.492015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

○A104.28.15.492015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

●A172.67.184.812026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

○A2400:cb00:2048:1::681c:e312015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

○A2400:cb00:2048:1::681c:f312015-08-21 → 2017-10-26 · 4 obs

● 2015-08-21 17:53:44
● 2017-10-26 21:11:32
○ 2026-08-22 16:45:02
○ 2026-08-28 10:30:46

●A2606:4700:3032::6815:2bc12026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

●A2606:4700:3036::ac43:b8512026-08-22 → 2026-08-28 · 3 obs

○ 2017-10-26 21:11:32
● 2026-08-22 16:45:02
● 2026-08-28 10:30:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net...	-
stackademy.com	seth.ns.cloudflare.com, ada.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.54

NS records: seth.ns.cloudflare.com, ada.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackademy.com (unsigned zone)

⏱️ Timing

Total: 242ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.184.81, 104.21.43.193`
AAAA	2	`2606:4700:3036::ac43:b851, 2606:4700:3032::6815:2bc1`
NS	2	`ada.ns.cloudflare.com, seth.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	2	`google-site-verification=6tm6f2owwdztq9m, v=spf1 include:spf.mandrillapp.com ?all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ada.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.stackademy.com is a subdomain of stackademy.com.

IP Addresses

stackademy.com points to the four IP addresses 104.21.43.193, 172.67.184.81, 2606:4700:3032::6815:2bc1 and 2606:4700:3036::ac43:b851.

hit23.onl, merdis.co.id, feroxadv.com and two other host names share IP numbers with stackademy.com.

Name Servers

stackademy.com is delegated to two name servers: ada.ns.cloudflare.com and seth.ns.cloudflare.com.

stackademy.com uses the same name servers as several other domains — among them restore-a-deckllc.com, premiumpharm.com, katie-coaches-frontend.pages.dev and two more.

The name servers of stackademy.com overlap at least partially with those of other domains — among them begerken14.workers.dev, mossela.com, imaginedesigns.eu and two more.

These name servers commonly appear alongside the name servers syeef.ns.cloudflare.com and tina.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

ada.ns.cloudflare.com resolves to 108.162.192.54, 172.64.32.54, 173.245.58.54 and 3 other IP addresses.

seth.ns.cloudflare.com resolves to 108.162.193.142, 172.64.33.142, 173.245.59.142 and 3 other IP addresses.

Mail Servers

stackademy.com has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

stackademy.com has at least partial mail server overlap with other domains such as valleyviewanimalfeeds.co.uk, six4three.com, inaccessnetworks.com and two more.

These mail servers commonly co-occur with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx2.googlemail.com points to 192.178.234.26 and 2800:3f0:4003:c14::1a.

aspmx3.googlemail.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com points to 64.233.180.27 and 2607:f8b0:4004:c1d::1a.

alt1.aspmx.l.google.com points to 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 2800:3f0:4003:c14::1a IP addresses.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 192.178.234.26 IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 2a00:1450:400b:c02::1a IP addresses.