study4.com - dns.ninja

`study4.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:8e3^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:9e3^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4958^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.8.227^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.9.227^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.73.88^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ajay.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c138^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ajay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2138^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ajay.ns.cloudflare.com`
		A	108.162.193.56^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	172.64.33.56^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	173.245.59.56^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
NS	`dorthy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c25::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f27.1e100.net`
		A	2607:f8b0:4004:c27::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.139.27^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.218.27^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f27.1e100.net`
TXT	`MS=ms27261699`
TXT	`anthropic-domain-verification-atwhbh=mUW99R0IYb2WZ4Z87EYIyaxhM`
TXT	`apple-domain-verification=68AZnSihzLQZORD8`
TXT	`cursor-domain-verification-8sqjbk=7iwUuGzZIXuIjSmaVuioHQqTj`
TXT	`google-site-verification=eQDQHsBrLtonmX1Sdl8ZGEM2Fh-UWbISNiVb2cFluYI`
TXT	`v=spf1 include:zoho.com ~all`
TXT	`zoho-verification=zb66126777.zmverify.zoho.com`
TXT	`zoho-verification=zb98914813.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.8.227, 104.26.9.227, 172.67.73.88
		IPv6 hints	2606:4700:20::681a:8e3, 2606:4700:20::681a:9e3, 2606:4700:20::ac43:4958
SOA	`ajay.ns.cloudflare.com`dns@cloudflare.com serial=2408600020

`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=1783468386

rank #933689 globally
rank #416211 in the tld
📈 Tranco rank: #35,156

Subdomains

www.study4.com

Same first word

study4.com

study4.me

study4.net

study4.tw

study4.fun

Similar names

4study.ir

4study.de

4study.nl

4study.pro

4study.com

4study.cn

DNS History

26 records (9 active, 17 former)

●NSajay.ns.cloudflare.com2026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●NSdorthy.ns.cloudflare.com2026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

○NSns1.colo.com2016-02-26 → 2016-02-26 · 4 obs

○ 2015-07-21 03:50:40
● 2016-02-26 12:02:16
○ 2016-09-24 12:07:58
○ 2026-07-07 23:56:42

○NSns1.namebrightdns.com2016-09-24 → 2017-05-31 · 5 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
● 2017-05-31 14:23:26
○ 2026-02-15 17:07:06
○ 2026-07-07 23:56:42

○NSns1.vortals.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 07:35:36
○ 2015-07-21 03:50:40
○ 2026-07-07 23:56:42

○NSns2.namebrightdns.com2016-09-24 → 2017-05-31 · 5 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
● 2017-05-31 14:23:26
○ 2026-02-15 17:07:06
○ 2026-07-07 23:56:42

○NSns2.vortals.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 07:35:36
○ 2015-07-21 03:50:40
○ 2026-07-07 23:56:42

○NSns3.vortals.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 07:35:36
○ 2015-07-21 03:50:40
○ 2026-07-07 23:56:42

○MXmail.study4.com2015-07-21 → 2016-02-26 · 5 obs

○ 2008-03-15 07:35:36
● 2015-07-21 03:50:40
● 2016-02-26 12:02:16
○ 2016-09-24 12:07:58
○ 2026-07-07 23:56:42

●MXsmtp.google.com2026-02-15 → 2026-07-07 · 3 obs

○ 2016-09-24 12:07:58
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●A104.26.8.2272026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●A104.26.9.2272026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

○A107.23.198.2402016-09-24 → 2016-09-24 · 4 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

●A172.67.73.882026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●A2606:4700:20::681a:8e32026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●A2606:4700:20::681a:9e32026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

●A2606:4700:20::ac43:49582026-02-15 → 2026-07-07 · 3 obs

○ 2017-05-31 14:23:26
● 2026-02-15 17:07:06
● 2026-07-07 23:56:42

○A52.206.43.2342016-09-24 → 2016-09-24 · 4 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

○A52.4.72.1372016-09-24 → 2016-09-24 · 4 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

○A54.210.33.1902016-09-24 → 2016-09-24 · 4 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

○A54.236.123.2242016-09-24 → 2016-09-24 · 4 obs

○ 2016-02-26 12:02:16
● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

○A64.182.124.302008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 07:35:36
○ 2015-07-21 03:50:40
○ 2026-07-07 23:56:42

○A64.74.172.1252015-07-21 → 2015-11-27 · 5 obs

○ 2008-03-15 07:35:36
● 2015-07-21 03:50:40
● 2015-11-27 12:06:34
○ 2016-02-26 12:02:16
○ 2026-07-07 23:56:42

○A66.63.171.1252016-02-26 → 2016-02-26 · 4 obs

○ 2015-11-27 12:06:34
● 2016-02-26 12:02:16
○ 2016-09-24 12:07:58
○ 2026-07-07 23:56:42

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2016-09-24 → 2016-09-24 · 3 obs

● 2016-09-24 12:07:58
○ 2017-05-31 14:23:26
○ 2026-07-07 23:56:42

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-05-31 → 2026-02-17 · 5 obs

○ 2016-09-24 12:07:58
● 2017-05-31 14:23:26
● 2026-02-17 07:45:44
○ 2026-02-17 09:40:12
○ 2026-07-07 23:56:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net...	-
study4.com	ajay.ns.cloudflare.com, dorthy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.249

NS records: ajay.ns.cloudflare.com, dorthy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study4.com (unsigned zone)

⏱️ Timing

Total: 145ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.9.227, 172.67.73.88...`
AAAA	3	`2606:4700:20::681a:8e3, 2606:4700:20::681a:9e3...`
NS	2	`ajay.ns.cloudflare.com, dorthy.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	8	`MS=ms27261699, anthropic-domain-verification-atwhbh=mUW...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ajay.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

study4.com serves as the parent of www.study4.com.

IP Addresses

study4.com points to 6 IP addresses, including 104.26.8.227, 104.26.9.227 and 172.67.73.88, plus 3 other.

emich.och101.com, www.currentcatalog.com, blog.guykawasaki.com plus two other host names have IP numbers in common with study4.com.

Name Servers

study4.com has two authoritative name servers — ajay.ns.cloudflare.com and dorthy.ns.cloudflare.com.

The name server configuration of study4.com is shared with other domains, for instance trillionhost.com, dersci.com, dawang.de and two others.

study4.com has at least partial name server overlap with other domains, such as haitongcarbon.com, jifengaf.com, muddywaterspottery.com and two others.

It is common to find these name servers paired with the name servers paityn.ns.cloudflare.com, rayden.ns.cloudflare.com, olivia.ns.cloudflare.com and abdullah.ns.cloudflare.com.

Hosts with 6 IP addresses each:

ajay.ns.cloudflare.com points to 108.162.193.56, 172.64.33.56, 173.245.59.56 and 3 other IP addresses.

dorthy.ns.cloudflare.com points to 108.162.192.249, 172.64.32.249, 173.245.58.249 and 3 other IP addresses.

Mail Servers

study4.com uses one mail server — smtp.google.com.

The mail server setup of study4.com matches that of other domains such as eazybusiness.in, abhyaskram.in, keyautodetails.com and two others.

At least some of the mail servers used by study4.com are shared with other domains: moonshiner.at, birdhouse.co.kr, lojaskhalil.com.br and two others among them.

It is common to find these mail servers paired with the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com, as well as two others.

smtp.google.com has 9 IP addresses: 172.253.62.27, 172.253.139.27, 173.194.45.27 plus 6 more.