`openstudy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:c49f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:3c7f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.127^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.196.159^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adi.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c038^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2038^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adi.ns.cloudflare.com`
		A	108.162.192.56^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	172.64.32.56^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	173.245.58.56^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
NS	`chad.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b52^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c152^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chad.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2152^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chad.ns.cloudflare.com`
		A	108.162.193.82^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	172.64.33.82^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
		A	173.245.59.82^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chad.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.21.60.127, 172.67.196.159
		IPv6	2606:4700:3031::ac43:c49f, 2606:4700:3033::6815:3c7f
SOA	`adi.ns.cloudflare.com`dns@cloudflare.com serial=2397197869

`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=1771291435

rank #569769 globally
rank #255756 in the tld
WOT: SAFE (90/100)

Same first word

openstudy.org

openstudy.org.ua

openstudy.net

openstudy.uz

openstudy.com

openstudy.vn

openstudy.ru

Similar names

soundtype.com

DNS History

14 records (6 active, 8 former)

●NSadi.ns.cloudflare.com2026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

●NSchad.ns.cloudflare.com2026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

○NSns-1425.awsdns-50.org2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○NSns-1722.awsdns-23.co.uk2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○NSns-8.awsdns-01.com2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○NSns-826.awsdns-39.net2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○MXalt1.aspmx.l.google.com2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○MXalt2.aspmx.l.google.com2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

○MXaspmx.l.google.com2015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

●A104.21.60.1272026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

●A172.67.196.1592026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

●A2606:4700:3031::ac43:c49f2026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

●A2606:4700:3033::6815:3c7f2026-03-10 → 2026-03-10 · 3 obs

○ 2017-02-12 11:44:54
● 2026-03-10 10:04:56
● 2026-03-10 10:04:58

○A52.0.184.1182015-08-05 → 2017-02-12 · 4 obs

● 2015-08-05 10:32:44
● 2017-02-12 11:44:54
○ 2026-03-10 10:04:56
○ 2026-03-10 10:04:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...	-
openstudy.com	adi.ns.cloudflare.com, chad.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.192.56

NS records: adi.ns.cloudflare.com, chad.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openstudy.com (unsigned zone)

⏱️ Timing

Total: 181ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.60.127, 172.67.196.159`
AAAA	2	`2606:4700:3033::6815:3c7f, 2606:4700:3031::ac43:c49f`
NS	2	`adi.ns.cloudflare.com, chad.ns.cloudflare.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`adi.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

openstudy.com points to four IP numbers: 2606:4700:3031::ac43:c49f, 2606:4700:3033::6815:3c7f, 104.21.60.127 and 172.67.196.159.

Other host names, for instance xzhairun.com, telegxqaz.ink, josealvarenga.com, mahitiboss.com and www.polystyrenefilm.com share IP numbers with openstudy.com.

Name Servers

openstudy.com's delegation is to two name servers adi.ns.cloudflare.com and chad.ns.cloudflare.com.

openstudy.com shares the same name server configuration as other domains, such as hostbring.com, brainly.fr, brainly.lat, setiaflex.com and brainly.ro.

openstudy.com at least partially shares its name servers with other domains, for instance vidhaya.com, 1zaocan.com, 7daycure.com, nabeghlavi.ge and goddessescort.com.

these name servers are commonly used together with damien.ns.cloudflare.com, carl.ns.cloudflare.com, lina.ns.cloudflare.com and cecelia.ns.cloudflare.com.

Host names with six IP numbers:

adi.ns.cloudflare.com points to: 2606:4700:50::adf5:3a38, 2803:f800:50::6ca2:c038, 2a06:98c1:50::ac40:2038, 108.162.192.56, 172.64.32.56 and 173.245.58.56.

chad.ns.cloudflare.com points to: 2606:4700:58::adf5:3b52, 2803:f800:50::6ca2:c152, 2a06:98c1:50::ac40:2152, 108.162.193.82, 172.64.33.82 and 173.245.59.82.

openstudy.com - robtex.com

openstudy.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`openstudy.com`

`com`