`largestudyguide.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ab5a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:27c9^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.201^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.90^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dom.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dom.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dom.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dom.ns.cloudflare.com`
		A	108.162.193.157^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dom.ns.cloudflare.com`
		A	172.64.33.157^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dom.ns.cloudflare.com`
		A	173.245.59.157^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dom.ns.cloudflare.com`
NS	`poppy.ns.cloudflare.com`
		A	2606:4700:50::a29f:2621^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c221^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`poppy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2221^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`poppy.ns.cloudflare.com`
		A	108.162.194.33^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	162.159.38.33^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	172.64.34.33^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.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`⁽⁸⁴⁾
		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`⁽⁸⁶⁾
		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	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.201, 172.67.171.90
		IPv6 hints	2606:4700:3031::ac43:ab5a, 2606:4700:3035::6815:27c9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=28, name=cloudflare-ech.com
SOA	`dom.ns.cloudflare.com`dns@cloudflare.com serial=2406720861

`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=1785676182

⚠️ On DNS blocklist: doh-vpn-proxy-bypass

Same first word

largestudyguide.com

DNS History

13 records (9 active, 4 former)

●NSdom.ns.cloudflare.com2026-08-01 → 2026-08-02 · 2 obs

● 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●NSpoppy.ns.cloudflare.com2026-08-01 → 2026-08-02 · 2 obs

● 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●MXroute1.mx.cloudflare.net2026-08-01 → 2026-08-02 · 2 obs

● 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●MXroute2.mx.cloudflare.net2026-08-01 → 2026-08-02 · 2 obs

● 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●MXroute3.mx.cloudflare.net2026-08-01 → 2026-08-02 · 2 obs

● 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●A104.21.39.2012026-08-02 → 2026-08-02 · 2 obs

○ 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●A172.67.171.902026-08-02 → 2026-08-02 · 2 obs

○ 2026-08-01 23:42:04
● 2026-08-02 13:21:34

○A188.114.96.02026-08-01 → 2026-08-01 · 2 obs

● 2026-08-01 23:42:04
○ 2026-08-02 13:21:34

○A188.114.97.02026-08-01 → 2026-08-01 · 2 obs

● 2026-08-01 23:42:04
○ 2026-08-02 13:21:34

●A2606:4700:3031::ac43:ab5a2026-08-02 → 2026-08-02 · 2 obs

○ 2026-08-01 23:42:04
● 2026-08-02 13:21:34

●A2606:4700:3035::6815:27c92026-08-02 → 2026-08-02 · 2 obs

○ 2026-08-01 23:42:04
● 2026-08-02 13:21:34

○A2a06:98c1:3120::2026-08-01 → 2026-08-01 · 2 obs

● 2026-08-01 23:42:04
○ 2026-08-02 13:21:34

○A2a06:98c1:3121::2026-08-01 → 2026-08-01 · 2 obs

● 2026-08-01 23:42:04
○ 2026-08-02 13:21:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
largestudyguide.com	dom.ns.cloudflare.com, poppy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.33

NS records: dom.ns.cloudflare.com, poppy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for largestudyguide.com (unsigned zone)

⏱️ Timing

Total: 208ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.171.90, 104.21.39.201`
AAAA	2	`2606:4700:3031::ac43:ab5a, 2606:4700:3035::6815:27c9`
NS	2	`dom.ns.cloudflare.com, poppy.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 21), route3.mx.cloudflare.net (pri: 84)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dom.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

largestudyguide.com points to the four IP addresses 104.21.39.201, 172.67.171.90, 2606:4700:3031::ac43:ab5a and 2606:4700:3035::6815:27c9.

Among the host names that share IP numbers with largestudyguide.com are mm535.com, www.bikeadvisorpro.com, dermacia.com.br and two others.

Name Servers

DNS delegation for largestudyguide.com points to two name servers: dom.ns.cloudflare.com and poppy.ns.cloudflare.com.

largestudyguide.com has the same name server delegation as a number of other domains, such as soyuz-18.com, nigeriasport.ng, secretline.online and two more.

The name servers of largestudyguide.com overlap at least partially with those of other domains — among them us-sportscamps.com, editoria.africa, jiifxvle.cc and two more.

These name servers are routinely co-deployed with the name servers june.ns.cloudflare.com, stan.ns.cloudflare.com, dina.ns.cloudflare.com and two others.

Host names resolving to 6 IP numbers:

dom.ns.cloudflare.com has IP addresses 108.162.193.157, 172.64.33.157 and 173.245.59.157, plus 3 other.

poppy.ns.cloudflare.com has IP addresses 108.162.194.33, 162.159.38.33 and 172.64.34.33, plus 3 other.

Mail Servers

Mail for largestudyguide.com is routed through three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

largestudyguide.com shares at least some of its mail servers with other domains — for example auraspark.shop, mosfet-electronics.com, jblinks.cz and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net has IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, plus 3 other.

route2.mx.cloudflare.net has IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, plus 3 other.

route3.mx.cloudflare.net has IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, plus 3 other.

largestudyguide.com - robtex.com