`courseleader.net`

DNSSEC	⚠️ Not signed
A	143.202.155.43^{🇵🇦 SGSPANAMA143.202.155.0/24 Customer Record}
NS	`jimmy.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c4c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jimmy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jimmy.ns.cloudflare.com`
		A	108.162.195.76^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	162.159.44.76^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	172.64.35.76^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
NS	`treasure.ns.cloudflare.com`
		A	2606:4700:50::a29f:2674^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`treasure.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c274^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`treasure.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2274^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`treasure.ns.cloudflare.com`
		A	108.162.194.116^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`treasure.ns.cloudflare.com`
		A	162.159.38.116^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`treasure.ns.cloudflare.com`
		A	172.64.34.116^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`treasure.ns.cloudflare.com`
SOA	`jimmy.ns.cloudflare.com`dns@cloudflare.com serial=2403446469

`net`

	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=1778452956

⚠️ On DNS blocklist: tif

Same first word

courseleader.net

Similar names

DNS History

3 records (3 active, 0 former)

●NSjimmy.ns.cloudflare.com2026-05-03 → 2026-05-10 · 2 obs

● 2026-05-03 10:02:04
● 2026-05-10 22:57:02

●NStreasure.ns.cloudflare.com2026-05-03 → 2026-05-10 · 2 obs

● 2026-05-03 10:02:04
● 2026-05-10 22:57:02

●A143.202.155.432026-05-03 → 2026-05-10 · 2 obs

● 2026-05-03 10:02:04
● 2026-05-10 22:57:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
courseleader.net	treasure.ns.cloudflare.com, jimmy.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.76

NS records: treasure.ns.cloudflare.com, jimmy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseleader.net (unsigned zone)

⏱️ Timing

Total: 509ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`143.202.155.43`
NS	2	`jimmy.ns.cloudflare.com, treasure.ns.cloudflare.com`
SOA	1	`jimmy.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

courseleader.net points to a single IP number: 143.202.155.43.

Other host names, for instance ggdynamic.net, hutweed.net, thirstyhike.net, clerkopera.net and www.doubttooth.net share IP numbers with courseleader.net.

Name Servers

Delegation for courseleader.net rests with two name servers, jimmy.ns.cloudflare.com and treasure.ns.cloudflare.com.

courseleader.net shares the same name server setup as other domains, including 1396168994.live, showchop.net, builddiamond.net, 83870203.net and abox.co.

courseleader.net at least partially shares name servers with other domains, for instance clubvulkan-zerkalo.info, theyppublishing.com, unicamillus.org, monera.com.tr and cheerfuldash.com.

these name servers are commonly used with mike.ns.cloudflare.com, andronicus.ns.cloudflare.com and titan.ns.cloudflare.com.

Host names with six IP numbers: jimmy.ns.cloudflare.com points to: 2606:4700:58::a29f:2c4c, 2803:f800:50::6ca2:c34c, 2a06:98c1:50::ac40:234c, 108.162.195.76, 162.159.44.76 and 172.64.35.76. treasure.ns.cloudflare.com points to: 2606:4700:50::a29f:2674, 2803:f800:50::6ca2:c274, 2a06:98c1:50::ac40:2274, 108.162.194.116, 162.159.38.116 and 172.64.34.116.

courseleader.net - robtex.com