`ichthyosaurusworkshop.courses`

DNSSEC	⚠️ Not signed
A	104.21.79.73^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.57^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ada.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c036^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ada.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2036^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ada.ns.cloudflare.com`
		A	108.162.192.54^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	172.64.32.54^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	173.245.58.54^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
NS	`rommy.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c14^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c314^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rommy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2314^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rommy.ns.cloudflare.com`
		A	108.162.195.20^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	162.159.44.20^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	172.64.35.20^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.79.73, 172.67.169.57
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=219, name=cloudflare-ech.com
SOA	`ada.ns.cloudflare.com`dns@cloudflare.com serial=2404276229

`courses`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.courses` ⭐
	NS	`b.nic.courses`
	NS	`c.nic.courses`
	NS	`x.nic.courses`
	NS	`y.nic.courses`
	NS	`z.nic.courses`
	SOA	`a.nic.courses`admin@tldns.godaddy serial=1780480913

⚠️ On DNS blocklist: tif

Subdomains

www.ichthyosaurusworkshop.courses

Same first word

ichthyosaurusworkshop.courses

DNS History

4 records (4 active, 0 former)

●NSada.ns.cloudflare.com2026-05-23 → 2026-06-03 · 2 obs

● 2026-05-23 06:40:06
● 2026-06-03 10:12:44

●NSrommy.ns.cloudflare.com2026-05-23 → 2026-06-03 · 2 obs

● 2026-05-23 06:40:06
● 2026-06-03 10:12:44

●A104.21.79.732026-05-23 → 2026-06-03 · 2 obs

● 2026-05-23 06:40:06
● 2026-06-03 10:12:44

●A172.67.169.572026-05-23 → 2026-06-03 · 2 obs

● 2026-05-23 06:40:06
● 2026-06-03 10:12:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	c.nic.courses, b.nic.courses, a.nic.courses, z.nic.courses...	12 records
ichthyosaurusworkshop.courses	ada.ns.cloudflare.com, rommy.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.54

NS records: ada.ns.cloudflare.com, rommy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ichthyosaurusworkshop.courses (unsigned zone)

⏱️ Timing

Total: 1908ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.79.73, 172.67.169.57`
NS	2	`ada.ns.cloudflare.com, rommy.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ada.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)

Analysis

Hierarchy

www.ichthyosaurusworkshop.courses is a subdomain of ichthyosaurusworkshop.courses.

IP Addresses

ichthyosaurusworkshop.courses points to two IP numbers: 104.21.79.73 and 172.67.169.57.

Additional host names — samibarth.com, pintorvalencia.net, wheelhelp.net and two others — share IP numbers with ichthyosaurusworkshop.courses.

Name Servers

ichthyosaurusworkshop.courses has two authoritative name servers — ada.ns.cloudflare.com and rommy.ns.cloudflare.com.

ichthyosaurusworkshop.courses shares its name server setup with other domains, including remake-tractorbuilding.courses, risp.gov, berlin-supervision-coaching.de and two others.

The name servers of ichthyosaurusworkshop.courses overlap at least partially with those of other domains — among them silvermancanada.com, ac8.co, visiontireandauto.com and two more.

These name servers commonly appear alongside the name servers nova.ns.cloudflare.com and syeef.ns.cloudflare.com.

Host names with 6 IP numbers:

ada.ns.cloudflare.com resolves to 108.162.192.54, 172.64.32.54 and 173.245.58.54, along with three other IP addresses.

rommy.ns.cloudflare.com resolves to 108.162.195.20, 162.159.44.20 and 172.64.35.20, along with three other IP addresses.

ichthyosaurusworkshop.courses - robtex.com