🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`intstudy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:59d0^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9357^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.208^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.147.87^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jack.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c179^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jack.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2179^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jack.ns.cloudflare.com`
		A	108.162.193.121^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	172.64.33.121^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	173.245.59.121^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
NS	`kelly.ns.cloudflare.com`
		A	2606:4700:50::a29f:265b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kelly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c25b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kelly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:225b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kelly.ns.cloudflare.com`
		A	108.162.194.91^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kelly.ns.cloudflare.com`
		A	162.159.38.91^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kelly.ns.cloudflare.com`
		A	172.64.34.91^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kelly.ns.cloudflare.com`
TXT	`v=spf1 ip4:45.137.66.231 a mx ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.89.208, 172.67.147.87
		IPv6 hints	2606:4700:3037::6815:59d0, 2606:4700:3037::ac43:9357
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com
SOA	`jack.ns.cloudflare.com`dns@cloudflare.com serial=2416228040

`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=1790750504

WOT: SAFE (96/100)

Subdomains

www.intstudy.com

Same first word

intstudy.com.au

intstudy.co.kr

intstudy.com

intstudy.ir

Similar names

tinydust.pages.dev

dustnity.world

tinydust.cn

tinydust.net

studyint.ch

studinty.nl

studinty.com

tinydust.asia

studyint.blogspot.com

studyint.com

tinydust.workers.dev

tinydust.me

tinydust.com

Previous names

Next names

DNS History

13 records (6 active, 7 former)

●NSjack.ns.cloudflare.com2026-08-18 → 2026-09-30 · 3 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
● 2026-09-30 06:46:50

●NSkelly.ns.cloudflare.com2026-08-18 → 2026-09-30 · 3 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
● 2026-09-30 06:46:50

○NSns1.liquid9.co.uk2015-07-01 → 2017-03-23 · 4 obs

● 2015-07-01 08:20:16
● 2017-03-23 15:47:48
○ 2026-08-18 21:57:30
○ 2026-09-30 06:46:50

○NSns2.liquid9.co.uk2015-07-01 → 2017-03-23 · 4 obs

● 2015-07-01 08:20:16
● 2017-03-23 15:47:48
○ 2026-08-18 21:57:30
○ 2026-09-30 06:46:50

●A104.21.89.2082026-09-10 → 2026-09-30 · 5 obs

○ 2026-08-18 21:57:30
● 2026-09-10 22:46:50
○ 2026-09-19 20:45:16
● 2026-09-30 06:46:46
● 2026-09-30 06:46:50

●A172.67.147.872026-09-10 → 2026-09-30 · 5 obs

○ 2026-08-18 21:57:30
● 2026-09-10 22:46:50
○ 2026-09-19 20:45:16
● 2026-09-30 06:46:46
● 2026-09-30 06:46:50

○A188.114.96.02026-08-18 → 2026-09-19 · 6 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
○ 2026-09-10 22:46:50
● 2026-09-19 20:45:16
○ 2026-09-30 06:46:46
○ 2026-09-30 06:46:50

○A188.114.97.02026-08-18 → 2026-09-19 · 6 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
○ 2026-09-10 22:46:50
● 2026-09-19 20:45:16
○ 2026-09-30 06:46:46
○ 2026-09-30 06:46:50

●A2606:4700:3037::6815:59d02026-09-10 → 2026-09-30 · 5 obs

○ 2026-08-18 21:57:30
● 2026-09-10 22:46:50
○ 2026-09-19 20:45:16
● 2026-09-30 06:46:46
● 2026-09-30 06:46:50

●A2606:4700:3037::ac43:93572026-09-10 → 2026-09-30 · 5 obs

○ 2026-08-18 21:57:30
● 2026-09-10 22:46:50
○ 2026-09-19 20:45:16
● 2026-09-30 06:46:46
● 2026-09-30 06:46:50

○A2a06:98c1:3120::2026-08-18 → 2026-09-19 · 6 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
○ 2026-09-10 22:46:50
● 2026-09-19 20:45:16
○ 2026-09-30 06:46:46
○ 2026-09-30 06:46:50

○A2a06:98c1:3121::2026-08-18 → 2026-09-19 · 6 obs

○ 2017-03-23 15:47:48
● 2026-08-18 21:57:30
○ 2026-09-10 22:46:50
● 2026-09-19 20:45:16
○ 2026-09-30 06:46:46
○ 2026-09-30 06:46:50

○A64.207.139.1032015-07-01 → 2017-03-23 · 4 obs

● 2015-07-01 08:20:16
● 2017-03-23 15:47:48
○ 2026-08-18 21:57:30
○ 2026-09-30 06:46:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
intstudy.com	jack.ns.cloudflare.com, kelly.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.121

NS records: jack.ns.cloudflare.com, kelly.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for intstudy.com (unsigned zone)

⏱️ Timing

Total: 307ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.89.208, 172.67.147.87`
AAAA	2	`2606:4700:3037::6815:59d0, 2606:4700:3037::ac43:9357`
NS	2	`jack.ns.cloudflare.com, kelly.ns.cloudflare.com`
TXT	1	`v=spf1 ip4:45.137.66.231 a mx ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jack.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

intstudy.com is the parent zone for www.intstudy.com.

IP Addresses

intstudy.com has four IP addresses: 104.21.89.208, 172.67.147.87, 2606:4700:3037::6815:59d0 and 2606:4700:3037::ac43:9357.

Among the host names that share IP numbers with intstudy.com are mail.ambercar.eu, ciszanawoli.pl, olx.23304.click and two others.

Name Servers

DNS delegation for intstudy.com points to two name servers: jack.ns.cloudflare.com and kelly.ns.cloudflare.com.

intstudy.com has the same name server delegation as a number of other domains, such as sloto-sport.org.uk, andrewkboyd.xyz, jblead.com and two more.

intstudy.com partially shares its NS delegation with several other domains, including sylednfilled.com, usei95.workers.dev, hssi-dv2.pages.dev and two others.

These name servers are regularly seen alongside erin.ns.cloudflare.com and nash.ns.cloudflare.com as name servers.

Host names resolving to 6 IP numbers:

jack.ns.cloudflare.com has IP addresses 108.162.193.121, 172.64.33.121 and 173.245.59.121, plus 3 other.

kelly.ns.cloudflare.com has IP addresses 108.162.194.91, 162.159.38.91 and 172.64.34.91, plus 3 other.

intstudy.com - robtex.com

intstudy.com

com

Subdomains

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`intstudy.com`

`com`