courseslearn.com - dns.ninja

`courseslearn.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:32b8^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:d052^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.184^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.82^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`doug.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`doug.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`doug.ns.cloudflare.com`
		A	108.162.193.159^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	172.64.33.159^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	173.245.59.159^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
NS	`tegan.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tegan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tegan.ns.cloudflare.com`
		A	108.162.192.226^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	172.64.32.226^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	173.245.58.226^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`google-site-verification=xP-bot1h2LqXhQU2n_aFEGs1q1t6hEbRAHeu-fjDPk0`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.50.184, 172.67.208.82
		IPv6 hints	2606:4700:3032::6815:32b8, 2606:4700:3032::ac43:d052
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=64, name=cloudflare-ech.com
SOA	`doug.ns.cloudflare.com`dns@cloudflare.com serial=2409899463

`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=1785182372

📈 Tranco rank: #151,506

Subdomains

www.courseslearn.com

Same first word

courseslearn.com

Similar names

eurolasersnc.it

scoresneural.xyz

consurelaser.com

lanresources.com

DNS History

13 records (11 active, 2 former)

●NSdoug.ns.cloudflare.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●NStegan.ns.cloudflare.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●MXeforward1.registrar-servers.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●MXeforward2.registrar-servers.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●MXeforward3.registrar-servers.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●MXeforward4.registrar-servers.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●MXeforward5.registrar-servers.com2026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●A104.21.50.1842026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

●A172.67.208.822026-05-24 → 2026-07-27 · 2 obs

● 2026-05-24 10:03:48
● 2026-07-27 20:05:20

○A2606:4700:3030::ac43:d0522026-05-24 → 2026-06-08 · 4 obs

● 2026-05-24 10:03:48
● 2026-06-08 02:01:56
○ 2026-06-28 19:06:30
○ 2026-07-27 20:05:20

●A2606:4700:3032::6815:32b82026-06-28 → 2026-07-27 · 3 obs

○ 2026-06-08 02:01:56
● 2026-06-28 19:06:30
● 2026-07-27 20:05:20

●A2606:4700:3032::ac43:d0522026-06-28 → 2026-07-27 · 3 obs

○ 2026-06-08 02:01:56
● 2026-06-28 19:06:30
● 2026-07-27 20:05:20

○A2606:4700:3036::6815:32b82026-05-24 → 2026-06-08 · 4 obs

● 2026-05-24 10:03:48
● 2026-06-08 02:01:56
○ 2026-06-28 19:06:30
○ 2026-07-27 20:05:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
courseslearn.com	doug.ns.cloudflare.com, tegan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.226

NS records: doug.ns.cloudflare.com, tegan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseslearn.com (unsigned zone)

⏱️ Timing

Total: 205ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.208.82, 104.21.50.184`
AAAA	2	`2606:4700:3032::ac43:d052, 2606:4700:3032::6815:32b8`
NS	2	`doug.ns.cloudflare.com, tegan.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	2	`google-site-verification=xP-bot1h2LqXhQU, v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`doug.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

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

IP Addresses

courseslearn.com has four IP addresses: 104.21.50.184, 172.67.208.82, 2606:4700:3032::6815:32b8 and 2606:4700:3032::ac43:d052.

Additional host names — cacture.com, huailushiye.com, anime4up.bond and two others — share IP numbers with courseslearn.com.

Name Servers

courseslearn.com has two authoritative name servers — doug.ns.cloudflare.com and tegan.ns.cloudflare.com.

courseslearn.com shares its name server setup with other domains, including travelterapia.com.br, dospace.io, zarnu.com and two others.

courseslearn.com partially shares its NS delegation with several other domains, including weplaygames.net, citralandcibubur.com, pibox.com and two others.

These name servers are regularly seen alongside mustafa.ns.cloudflare.com and chan.ns.cloudflare.com as name servers.

Host names with 6 IP numbers:

doug.ns.cloudflare.com points to 108.162.193.159, 172.64.33.159, 173.245.59.159 and 3 other IP addresses.

tegan.ns.cloudflare.com points to 108.162.192.226, 172.64.32.226, 173.245.58.226 and 3 other IP addresses.

Mail Servers

Mail for courseslearn.com is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

courseslearn.com shares mail servers — at least in part — with other domains, including sls.limited, sim-diy.com, citadel.wtf and two others.

The mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com regularly co-occur with these mail servers.

Host names pointing to a single IP address:

eforward1.registrar-servers.com resolves to 162.255.118.51.

eforward2.registrar-servers.com resolves to 162.255.118.52.

eforward3.registrar-servers.com resolves to 162.255.118.51.

eforward4.registrar-servers.com resolves to 162.255.118.52.

eforward5.registrar-servers.com resolves to 162.255.118.51.

eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com are host names that all point to 162.255.118.51.

The host names eforward2.registrar-servers.com and eforward4.registrar-servers.com both resolve to 162.255.118.52 IP addresses.