`profitablecourses.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:833f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:a37^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.10.55^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.63^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elliot.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliot.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elliot.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elliot.ns.cloudflare.com`
		A	108.162.193.162^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliot.ns.cloudflare.com`
		A	172.64.33.162^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliot.ns.cloudflare.com`
		A	173.245.59.162^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elliot.ns.cloudflare.com`
NS	`surina.ns.cloudflare.com`
		A	2606:4700:50::a29f:2613^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`surina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c213^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`surina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2213^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`surina.ns.cloudflare.com`
		A	108.162.194.19^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`surina.ns.cloudflare.com`
		A	162.159.38.19^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`surina.ns.cloudflare.com`
		A	172.64.34.19^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`surina.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		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`
MX	`route3.mx.cloudflare.net`⁽⁶⁶⁾
		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	`route1.mx.cloudflare.net`⁽⁹³⁾
		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`
TXT	`facebook-domain-verification=ced5m5m0ezqvqukpqlpzyhyw973ogn`
TXT	`google-site-verification=EcAkRxdG2Ari_3E06iWJkmR0tiN8xoiR2ft8dWOOZ6k`
TXT	`v=spf1 a:helpscoutemail.com mailgun.org _spf.mx.cloudflare.net include:_spf.m...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.10.55, 172.67.131.63
		IPv6	2606:4700:3031::ac43:833f, 2606:4700:3037::6815:a37
SOA	`elliot.ns.cloudflare.com`dns@cloudflare.com serial=2397629653

`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

Subdomains

www.profitablecourses.com

app.profitablecourses.com

Same first word

profitablecourses.com

DNS History

14 records (9 active, 5 former)

●NSelliot.ns.cloudflare.com2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

○NSns21.domaincontrol.com2016-12-20 → 2017-12-11 · 4 obs

● 2016-12-20 15:38:10
● 2017-12-11 13:46:30
○ 2026-03-01 11:05:42
○ 2026-03-01 21:39:56

○NSns22.domaincontrol.com2016-12-20 → 2017-12-11 · 4 obs

● 2016-12-20 15:38:10
● 2017-12-11 13:46:30
○ 2026-03-01 11:05:42
○ 2026-03-01 21:39:56

●NSsurina.ns.cloudflare.com2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

○MXmailstore1.secureserver.net2016-12-20 → 2017-12-11 · 4 obs

● 2016-12-20 15:38:10
● 2017-12-11 13:46:30
○ 2026-03-01 11:05:42
○ 2026-03-01 21:39:56

●MXroute1.mx.cloudflare.net2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

●MXroute2.mx.cloudflare.net2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

●MXroute3.mx.cloudflare.net2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

○MXsmtp.secureserver.net2016-12-20 → 2017-12-11 · 4 obs

● 2016-12-20 15:38:10
● 2017-12-11 13:46:30
○ 2026-03-01 11:05:42
○ 2026-03-01 21:39:56

●A104.21.10.552026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

●A172.67.131.632026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

○A184.168.221.122016-12-20 → 2017-12-11 · 4 obs

● 2016-12-20 15:38:10
● 2017-12-11 13:46:30
○ 2026-03-01 11:05:42
○ 2026-03-01 21:39:56

●A2606:4700:3031::ac43:833f2026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

●A2606:4700:3037::6815:a372026-03-01 → 2026-03-01 · 3 obs

○ 2017-12-11 13:46:30
● 2026-03-01 11:05:42
● 2026-03-01 21:39:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
profitablecourses.com	elliot.ns.cloudflare.com, surina.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.162

NS records: elliot.ns.cloudflare.com, surina.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.131.63, 104.21.10.55`
AAAA	2	`2606:4700:3037::6815:a37, 2606:4700:3031::ac43:833f`
NS	2	`elliot.ns.cloudflare.com, surina.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 2), route3.mx.cloudflare.net (pri: 66)...`
TXT	3	`facebook-domain-verification=ced5m5m0ezq, google-site-verification=EcAkRxdG2Ari_3E...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elliot.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

profitablecourses.com is a parent of www.profitablecourses.com and app.profitablecourses.com.

IP Addresses

profitablecourses.com maps to four IP numbers: 2606:4700:3031::ac43:833f, 2606:4700:3037::6815:a37, 104.21.10.55 and 172.67.131.63.

Other host names, for instance sqycdj.com, laureatedays.net, fly88code.com, deepthi.info and highrollerrollwave.com share IP numbers with profitablecourses.com.

Name Servers

Two name servers elliot.ns.cloudflare.com and surina.ns.cloudflare.com handle delegation for profitablecourses.com.

profitablecourses.com uses the same name server setup as other domains, for example startuptools.org, auercpa.com, boudieshorts.com, bolago.se and danielsanddaniels.law.

profitablecourses.com partially shares name servers with other domains; examples include jakecureton.com, pharmaplug.com, classic-angel.de, honeywellgalaxyflex.com and host97.net.

These name servers are often used with the name servers magnolia.ns.cloudflare.com and reese.ns.cloudflare.com.

Host names with six IP numbers: elliot.ns.cloudflare.com points to: 2606:4700:58::adf5:3ba2, 2803:f800:50::6ca2:c1a2, 2a06:98c1:50::ac40:21a2, 108.162.193.162, 172.64.33.162 and 173.245.59.162; surina.ns.cloudflare.com points to: 2606:4700:50::a29f:2613, 2803:f800:50::6ca2:c213, 2a06:98c1:50::ac40:2213, 108.162.194.19, 162.159.38.19 and 172.64.34.19.

Mail Servers

profitablecourses.com is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

profitablecourses.com shares some mail servers with other domains, at least partially, such as ductmakerswbs.com, swlr.com, host.blogautoworld.com, funkadelic.org and kidbam.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.

profitablecourses.com - robtex.com