`coursesimplified.digital`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:85b9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:5ba^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.186^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.133.185^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`hugh.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b75^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c175^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hugh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2175^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hugh.ns.cloudflare.com`
		A	108.162.193.117^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	172.64.33.117^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	173.245.59.117^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
NS	`nena.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nena.ns.cloudflare.com`
		A	108.162.194.161^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	162.159.38.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	172.64.34.161^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.186, 172.67.133.185
		IPv6 hints	2606:4700:3033::ac43:85b9, 2606:4700:3034::6815:5ba
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=214, name=cloudflare-ech.com
SOA	`hugh.ns.cloudflare.com`dns@cloudflare.com serial=2410067143

`digital`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.digital` ⭐
	NS	`v0n1.nic.digital`
	NS	`v0n2.nic.digital`
	NS	`v0n3.nic.digital`
	NS	`v2n0.nic.digital`
	NS	`v2n1.nic.digital`
	SOA	`v0n0.nic.digital`hostmaster@donuts.email serial=1785424900

⚠️ On DNS blocklist: tif

Same first word

coursesimplified.digital

DNS History

10 records (6 active, 4 former)

●NShugh.ns.cloudflare.com2026-07-28 → 2026-07-30 · 2 obs

● 2026-07-28 08:30:14
● 2026-07-30 16:18:10

●NSnena.ns.cloudflare.com2026-07-28 → 2026-07-30 · 2 obs

● 2026-07-28 08:30:14
● 2026-07-30 16:18:10

●A104.21.5.1862026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10

●A172.67.133.1852026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10

○A188.114.96.02026-07-28 → 2026-07-28 · 2 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10

○A188.114.97.02026-07-28 → 2026-07-28 · 2 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10

●A2606:4700:3033::ac43:85b92026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10

●A2606:4700:3034::6815:5ba2026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10

○A2a06:98c1:3120::2026-07-28 → 2026-07-28 · 2 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10

○A2a06:98c1:3121::2026-07-28 → 2026-07-28 · 2 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
digital	v0n0.nic.digital, v0n1.nic.digital, v0n2.nic.digital, v0n3.nic.digital...	-
coursesimplified.digital	nena.ns.cloudflare.com, hugh.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.117

NS records: nena.ns.cloudflare.com, hugh.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursesimplified.digital (unsigned zone)

⏱️ Timing

Total: 377ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.5.186, 172.67.133.185`
AAAA	2	`2606:4700:3033::ac43:85b9, 2606:4700:3034::6815:5ba`
NS	2	`hugh.ns.cloudflare.com, nena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`hugh.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

coursesimplified.digital has four IP addresses: 104.21.5.186, 172.67.133.185, 2606:4700:3033::ac43:85b9 and 2606:4700:3034::6815:5ba.

Additional host names — rockyboy.org, genesisfood.ca, www.lektire.hr and two others — share IP numbers with coursesimplified.digital.

Name Servers

coursesimplified.digital has two authoritative name servers — hugh.ns.cloudflare.com and nena.ns.cloudflare.com.

coursesimplified.digital shares its name server setup with other domains, including thecourseguidepro.digital, execskillguide.sbs, compareethically.sbs and two others.

coursesimplified.digital partially shares its NS delegation with several other domains, including ulfharryalexandersson.workers.dev, pq4t1arl.mobi, stilbegeistert.com and two others.

These name servers often co-occur with the name servers harlan.ns.cloudflare.com.

Host names with 6 IP numbers:

hugh.ns.cloudflare.com points to 108.162.193.117, 172.64.33.117, 173.245.59.117 and 3 other IP addresses.

nena.ns.cloudflare.com points to 108.162.194.161, 162.159.38.161, 172.64.34.161 and 3 other IP addresses.

coursesimplified.digital - robtex.com