coursesimplified.digital - dns.ninja

`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=15, 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=1785925592

⚠️ On DNS blocklist: tif, tif.medium

Same first word

coursesimplified.digital

DNS History

10 records (6 active, 4 former)

●NShugh.ns.cloudflare.com2026-07-28 → 2026-08-05 · 2 obs

● 2026-07-28 08:30:14
● 2026-08-05 10:31:58

●NSnena.ns.cloudflare.com2026-07-28 → 2026-08-05 · 2 obs

● 2026-07-28 08:30:14
● 2026-08-05 10:31:58

●A104.21.5.1862026-07-30 → 2026-08-05 · 3 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10
● 2026-08-05 10:31:58

●A172.67.133.1852026-07-30 → 2026-08-05 · 3 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10
● 2026-08-05 10:31:58

○A188.114.96.02026-07-28 → 2026-07-28 · 3 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10
○ 2026-08-05 10:31:58

○A188.114.97.02026-07-28 → 2026-07-28 · 3 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10
○ 2026-08-05 10:31:58

●A2606:4700:3033::ac43:85b92026-07-30 → 2026-08-05 · 3 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10
● 2026-08-05 10:31:58

●A2606:4700:3034::6815:5ba2026-07-30 → 2026-08-05 · 3 obs

○ 2026-07-28 08:30:14
● 2026-07-30 16:18:10
● 2026-08-05 10:31:58

○A2a06:98c1:3120::2026-07-28 → 2026-07-28 · 3 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10
○ 2026-08-05 10:31:58

○A2a06:98c1:3121::2026-07-28 → 2026-07-28 · 3 obs

● 2026-07-28 08:30:14
○ 2026-07-30 16:18:10
○ 2026-08-05 10:31:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
digital	v2n1.nic.digital, v0n1.nic.digital, v0n0.nic.digital, v0n2.nic.digital...	-
coursesimplified.digital	hugh.ns.cloudflare.com, nena.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.117

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursesimplified.digital (unsigned zone)

⏱️ Timing

Total: 371ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.133.185, 104.21.5.186`
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 points to the four IP addresses 104.21.5.186, 172.67.133.185, 2606:4700:3033::ac43:85b9 and 2606:4700:3034::6815:5ba.

Among the host names that share IP numbers with coursesimplified.digital are rockyboy.org, genesisfood.ca, www.lektire.hr and two others.

Name Servers

The NS records for coursesimplified.digital delegate to hugh.ns.cloudflare.com and nena.ns.cloudflare.com.

coursesimplified.digital has the same name server delegation as a number of other domains, such as thecourseguidepro.digital, execskillguide.sbs, compareethically.sbs and two more.

The name servers of coursesimplified.digital overlap at least partially with those of other domains — among them ulfharryalexandersson.workers.dev, pq4t1arl.mobi, stilbegeistert.com and two more.

These name servers commonly appear in combination with the name servers harlan.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

hugh.ns.cloudflare.com maps to 108.162.193.117, 172.64.33.117, 173.245.59.117 and 3 additional IP addresses.

nena.ns.cloudflare.com maps to 108.162.194.161, 162.159.38.161, 172.64.34.161 and 3 additional IP addresses.