studyco.com - dns.ninja

`studyco.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:d52d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2328^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.40^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.213.45^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`danica.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26bb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`danica.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`danica.ns.cloudflare.com`
		A	108.162.194.187^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	162.159.38.187^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	172.64.34.187^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
NS	`keanu.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keanu.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keanu.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keanu.ns.cloudflare.com`
		A	108.162.195.167^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keanu.ns.cloudflare.com`
		A	162.159.44.167^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keanu.ns.cloudflare.com`
		A	172.64.35.167^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keanu.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		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`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		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`
TXT	`brevo-code:35c0321e5c64adc774dcc69315bddf33`
TXT	`globalsign-domain-verification=-6glHs-LsSKZabNm7SQ2FA6MfKUR9xEq5Bpr2AA2hM`
TXT	`globalsign-domain-verification=2ei3uRVOfODymfJHPYZAPVvnb0yNS7GTZmrujBPGRQ`
TXT	`globalsign-domain-verification=MRy4D36aE1hvLDbE1Dfe9syJNuoym-24dS6FG66Uve`
TXT	`google-site-verification=VUBz1HL6vNQWdc3GqNzf9cQcELLS31s4z9ndDhPnQXg`
TXT	`google-site-verification=WNpTSYRJCNkUTPWg63THC56IC_sRwG5IU5-duwQkV4Q`
TXT	`v=spf1 ip4:221.121.154.23 +ip4:152.69.178.244 +ip4:130.162.195.206 include:_s...`
TXT	`xlGXFrDHlRU3UWkufdN88nViFzNmtqVYuurkITHnIz0=`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.40, 172.67.213.45
		IPv6 hints	2606:4700:3030::ac43:d52d, 2606:4700:3036::6815:2328
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=81, name=cloudflare-ech.com
SOA	`danica.ns.cloudflare.com`dns@cloudflare.com serial=2410316597

`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=1785277267

Subdomains

www.studyco.com

Same first word

studyco.org

studyco.com.au

studyco.com

Similar names

custody.de

custody.me

custody.us

custody.jp

custody.net

custody.ca

custody.info

custody.guru

costudy.org

cosduty.com

custody.ch

dyscout.com

custody.eu

ocstudy.ru

custody.co

costudy.me

custody.memorial

custody.su

custody.at

custody.com

costudy.com

custody.com.au

custody.org

dustyco.net

dustyco.com

costudy.co

custody.ru

custody.exchange

custody.co.uk

coydust.com

scudtoy.com

DNS History

20 records (11 active, 9 former)

●NSdanica.ns.cloudflare.com2026-02-21 → 2026-07-28 · 3 obs

○ 2017-04-08 17:14:54
● 2026-02-21 04:14:26
● 2026-07-28 22:25:50

●NSkeanu.ns.cloudflare.com2026-02-21 → 2026-07-28 · 3 obs

○ 2017-04-08 17:14:54
● 2026-02-21 04:14:26
● 2026-07-28 22:25:50

○NSns7.alphawebzone.com2015-05-27 → 2017-04-08 · 4 obs

● 2015-05-27 13:12:10
● 2017-04-08 17:14:54
○ 2026-02-21 04:14:26
○ 2026-07-28 22:25:50

○NSns9.alphawebzone.com2015-05-27 → 2017-04-08 · 4 obs

● 2015-05-27 13:12:10
● 2017-04-08 17:14:54
○ 2026-02-21 04:14:26
○ 2026-07-28 22:25:50

●MXalt1.aspmx.l.google.com2015-05-27 → 2026-07-28 · 2 obs

● 2015-05-27 13:12:10
● 2026-07-28 22:25:50

●MXalt2.aspmx.l.google.com2015-05-27 → 2026-07-28 · 4 obs

● 2015-05-27 13:12:10
○ 2015-11-02 06:52:54
● 2017-04-08 17:14:54
● 2026-07-28 22:25:50

●MXaspmx.l.google.com2015-05-27 → 2026-07-28 · 2 obs

● 2015-05-27 13:12:10
● 2026-07-28 22:25:50

●MXaspmx2.googlemail.com2015-11-02 → 2026-07-28 · 3 obs

○ 2015-05-27 13:12:10
● 2015-11-02 06:52:54
● 2026-07-28 22:25:50

●MXaspmx3.googlemail.com2015-05-27 → 2026-07-28 · 2 obs

● 2015-05-27 13:12:10
● 2026-07-28 22:25:50

●A104.21.35.402026-03-17 → 2026-07-28 · 14 obs

○ 2026-02-21 04:14:26
● 2026-03-17 17:18:06
○ 2026-03-29 13:34:56
● 2026-03-29 22:41:22
● 2026-04-25 04:45:54
○ 2026-04-28 17:31:02
● 2026-04-29 14:24:40
● 2026-06-02 21:18:52
○ 2026-06-08 16:34:28
● 2026-06-09 22:38:30
○ 2026-06-27 14:24:18
● 2026-07-11 18:06:34
○ 2026-07-28 07:37:10
● 2026-07-28 22:25:50

●A172.67.213.452026-03-17 → 2026-07-28 · 14 obs

○A188.114.96.02026-02-21 → 2026-07-28 · 15 obs

○ 2017-04-08 17:14:54
● 2026-02-21 04:14:26
○ 2026-03-17 17:18:06
● 2026-03-29 13:34:56
○ 2026-03-29 22:41:22
○ 2026-04-25 04:45:54
● 2026-04-28 17:31:02
○ 2026-04-29 14:24:40
○ 2026-06-02 21:18:52
● 2026-06-08 16:34:28
○ 2026-06-09 22:38:30
● 2026-06-27 14:24:18
○ 2026-07-11 18:06:34
● 2026-07-28 07:37:10
○ 2026-07-28 22:25:50

○A188.114.97.02026-02-21 → 2026-07-28 · 15 obs

○A213.229.92.1552015-05-27 → 2017-04-08 · 4 obs

● 2015-05-27 13:12:10
● 2017-04-08 17:14:54
○ 2026-02-21 04:14:26
○ 2026-07-28 22:25:50

●A2606:4700:3030::ac43:d52d2026-07-11 → 2026-07-28 · 4 obs

○ 2026-06-27 14:24:18
● 2026-07-11 18:06:34
○ 2026-07-28 07:37:10
● 2026-07-28 22:25:50

○A2606:4700:3031::6815:23282026-03-17 → 2026-06-09 · 12 obs

○A2606:4700:3031::ac43:d52d2026-03-17 → 2026-06-09 · 12 obs

●A2606:4700:3036::6815:23282026-07-11 → 2026-07-28 · 4 obs

○ 2026-06-27 14:24:18
● 2026-07-11 18:06:34
○ 2026-07-28 07:37:10
● 2026-07-28 22:25:50

○A2a06:98c1:3120::2026-02-21 → 2026-07-28 · 15 obs

○A2a06:98c1:3121::2026-02-21 → 2026-07-28 · 15 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
studyco.com	danica.ns.cloudflare.com, keanu.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.187

NS records: danica.ns.cloudflare.com, keanu.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyco.com (unsigned zone)

⏱️ Timing

Total: 656ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.213.45, 104.21.35.40`
AAAA	2	`2606:4700:3036::6815:2328, 2606:4700:3030::ac43:d52d`
NS	2	`danica.ns.cloudflare.com, keanu.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	8	`brevo-code:35c0321e5c64adc774dcc69315bdd, globalsign-domain-verification=-6glHs-Ls...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`danica.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

studyco.com is a parent domain of www.studyco.com.

IP Addresses

studyco.com resolves to four IP addresses: 104.21.35.40, 172.67.213.45, 2606:4700:3030::ac43:d52d and 2606:4700:3036::6815:2328.

www.adminkone.com, animalrn.com, cotonet.com.br and two other host names share IP numbers with studyco.com.

Name Servers

studyco.com is delegated to two name servers: danica.ns.cloudflare.com and keanu.ns.cloudflare.com.

studyco.com uses the same name servers as several other domains — among them studyenglishinaustralia.com, tharovanquex.com, awz.com and two more.

studyco.com shares at least some of its name servers with other domains, including silverstarstreams.com, wilsonproject.ca, leoncitolv.com and two others.

These name servers are frequently paired with the name servers adam.ns.cloudflare.com, mona.ns.cloudflare.com and pablo.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

danica.ns.cloudflare.com resolves to 108.162.194.187, 162.159.38.187, 172.64.34.187 and 3 other IP addresses.

keanu.ns.cloudflare.com resolves to 108.162.195.167, 162.159.44.167, 172.64.35.167 and 3 other IP addresses.

Mail Servers

studyco.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

studyco.com has at least partial mail server overlap with other domains such as ns500742.ns500671.ns500731.ns500671.ns500704.ns500671.ns500671.ns500678.ns500688.ns500671.ns500649.lustychickser.com, ns500742.ns500742.ns500742.ns500731.ns500742.ns500754.ns500754.ns500731.ns500704.ns500704.ns500704.ns500678.lustychickser.com, ns500671.ns500754.ns500671.ns500742.ns500742.ns500688.ns500666.ns500131.lustychickser.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 108.177.123.26 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com points to 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com points to 192.178.155.26 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com points to 172.253.116.27 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:c0f::1a 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.