`bdstudyworld.com`

DNSSEC	⚠️ Not signed
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
NS	`dina.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dina.ns.cloudflare.com`
		A	108.162.192.107^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	172.64.32.107^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	173.245.58.107^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
NS	`titan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c5d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`titan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`titan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`titan.ns.cloudflare.com`
		A	108.162.195.93^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`titan.ns.cloudflare.com`
		A	162.159.44.93^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`titan.ns.cloudflare.com`
		A	172.64.35.93^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`titan.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁷⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁴¹⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`google-site-verification=dsG11V7KuvqB9Ec-83b7libEkw1lviuV47UkvoDNLfU`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
SOA	`dina.ns.cloudflare.com`dns@cloudflare.com serial=2398216304

`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

DNS History

13 records (6 active, 7 former)

●NSdina.ns.cloudflare.com2026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

○NSglen.ns.cloudflare.com2019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

○NSmaya.ns.cloudflare.com2019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

●NStitan.ns.cloudflare.com2026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

○MXdc-acfa3b9e143c.bdstudyworld.com2019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

●MXroute1.mx.cloudflare.net2026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

●MXroute2.mx.cloudflare.net2026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

●MXroute3.mx.cloudflare.net2026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

○A104.28.12.642019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

○A104.28.13.642019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

●A216.198.79.12026-03-14 → 2026-03-14 · 3 obs

○ 2019-12-18 06:46:28
● 2026-03-14 10:26:20
● 2026-03-14 10:26:22

○A2606:4700:30::681c:c402019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

○A2606:4700:30::681c:d402019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 06:46:28
○ 2026-03-14 10:26:20
○ 2026-03-14 10:26:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bdstudyworld.com	dina.ns.cloudflare.com, titan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.192.107

NS records: dina.ns.cloudflare.com, titan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bdstudyworld.com (unsigned zone)

⏱️ Timing

Total: 63ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	2	`dina.ns.cloudflare.com, titan.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 41), route1.mx.cloudflare.net (pri: 5)...`
TXT	2	`google-site-verification=dsG11V7KuvqB9Ec, v=spf1 include:_spf.mx.cloudflare.net ~a`
SOA	1	`dina.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

bdstudyworld.com points to an IP address: 216.198.79.1.

other host names include calivian.com, menyoomod.com, networkservice.in, mitcsco.com and jetbluecheckinforgood.com; they share IP numbers with bdstudyworld.com.

Name Servers

Two name servers dina.ns.cloudflare.com and titan.ns.cloudflare.com handle the delegation for bdstudyworld.com.

bdstudyworld.com shares the same name server setup as other domains, for instance leaddog.net, isolux.com.au, greentechsolar.com.au, renatameins.com.br and makeupacademy.com.br.

bdstudyworld.com at least partially shares name servers with other domains, for instance tvc-mall.com, englandstats.com, mdapsny.org, at10online.com and emaildbox.pro.

These name servers are commonly used alongside dom.ns.cloudflare.com.

Six IP addresses per host:

dina.ns.cloudflare.com points to 2606:4700:50::adf5:3a6b, 2803:f800:50::6ca2:c06b, 2a06:98c1:50::ac40:206b, 108.162.192.107, 172.64.32.107 and 173.245.58.107; titan.ns.cloudflare.com points to 2606:4700:58::a29f:2c5d, 2803:f800:50::6ca2:c35d, 2a06:98c1:50::ac40:235d, 108.162.195.93, 162.159.44.93 and 172.64.35.93

Mail Servers

Three mail servers handle bdstudyworld.com: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

bdstudyworld.com shares at least partially some mail servers with other domains, for instance vhabion.net, iorsoft.com, adamsapparels.com, madays.net and microlaw.com.

Host names with six IP numbers:

- route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13

- route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19

- route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25

bdstudyworld.com - robtex.com