rtstudy.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`rtstudy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:ceed^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:16ce^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.22.206^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.237^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`delilah.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2663^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`delilah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c263^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`delilah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2263^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`delilah.ns.cloudflare.com`
		A	108.162.194.99^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`delilah.ns.cloudflare.com`
		A	162.159.38.99^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`delilah.ns.cloudflare.com`
		A	172.64.34.99^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`delilah.ns.cloudflare.com`
NS	`yadiel.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c04^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c304^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yadiel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2304^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yadiel.ns.cloudflare.com`
		A	108.162.195.4^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	162.159.44.4^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	172.64.35.4^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.22.206, 172.67.206.237
		IPv6 hints	2606:4700:3030::ac43:ceed, 2606:4700:3034::6815:16ce
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=229, name=cloudflare-ech.com
SOA	`delilah.ns.cloudflare.com`dns@cloudflare.com serial=2418755910

`com`

	DNSSEC	⚠️ Not signed
	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=1794529611

Same first word

rtstudy.com

rtstudy.cn

rtstudy.site

Similar names

Previous names

Next names

DNS History

17 records (6 active, 11 former)

●NSdelilah.ns.cloudflare.com2026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

○NSdns1.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○NSdns2.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○NSdns3.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○NSdns4.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○NSdns5.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

●NSyadiel.ns.cloudflare.com2026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

○MXeforward1.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○MXeforward2.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○MXeforward3.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○MXeforward4.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

○MXeforward5.registrar-servers.com2016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

●A104.21.22.2062026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

○A162.255.119.1822016-12-17 → 2017-09-19 · 4 obs

● 2016-12-17 04:09:36
● 2017-09-19 19:11:06
○ 2026-09-21 20:41:04
○ 2026-11-13 00:50:04

●A172.67.206.2372026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

●A2606:4700:3030::ac43:ceed2026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

●A2606:4700:3034::6815:16ce2026-11-05 → 2026-11-13 · 3 obs

○ 2026-09-21 20:41:04
● 2026-11-05 06:39:40
● 2026-11-13 00:50:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rtstudy.com	delilah.ns.cloudflare.com, yadiel.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.4

NS records: delilah.ns.cloudflare.com, yadiel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtstudy.com (unsigned zone)

⏱️ Timing

Total: 363ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.22.206, 172.67.206.237`
AAAA	2	`2606:4700:3030::ac43:ceed, 2606:4700:3034::6815:16ce`
NS	2	`delilah.ns.cloudflare.com, yadiel.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`delilah.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

rtstudy.com resolves to four IP addresses: 104.21.22.206, 172.67.206.237, 2606:4700:3030::ac43:ceed and 2606:4700:3034::6815:16ce.

cdm.za.com, vgagaleski.com, vd-meulen.com and two other host names share IP numbers with rtstudy.com.

Name Servers

rtstudy.com has two authoritative name servers — delilah.ns.cloudflare.com and yadiel.ns.cloudflare.com.

rtstudy.com uses the same name servers as several other domains — among them norwegianink.com, zx1224-cq.workers.dev, dazhecun.com and two more.

rtstudy.com shares at least some of its name servers with other domains, including isaaclhchu.workers.dev, cxbcvt8.top, 199444jiu.app and two others.

These name servers are frequently paired with the name servers grant.ns.cloudflare.com and josh.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

delilah.ns.cloudflare.com points to 108.162.194.99, 162.159.38.99, 172.64.34.99 and 3 other IP addresses.

yadiel.ns.cloudflare.com points to 108.162.195.4, 162.159.44.4, 172.64.35.4 and 3 other IP addresses.