🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`rubyiris5.courses`

DNSSEC	⚠️ Not signed
A	23.145.248.82^{🇺🇸 CLOUDFLARESPECTRUM23.145.248.0/24 Spire Cloud Limited}
A	23.145.248.83^{🇺🇸 CLOUDFLARESPECTRUM23.145.248.0/24 Spire Cloud Limited}
NS	`aliza.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2637^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c237^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aliza.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2237^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aliza.ns.cloudflare.com`
		A	108.162.194.55^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	162.159.38.55^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	172.64.34.55^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
NS	`coby.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b5c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coby.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coby.ns.cloudflare.com`
		A	108.162.193.92^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	172.64.33.92^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	173.245.59.92^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
SOA	`aliza.ns.cloudflare.com`dns@cloudflare.com serial=2416936831

`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=1794444702

⚠️ On DNS blocklist: spam-tlds

Same first word

rubyiris5.courses

Previous names

Next names

DNS History

4 records (4 active, 0 former)

●NSaliza.ns.cloudflare.com2026-10-09 → 2026-11-12 · 2 obs

● 2026-10-09 16:08:28
● 2026-11-12 01:13:26

●NScoby.ns.cloudflare.com2026-10-09 → 2026-11-12 · 2 obs

● 2026-10-09 16:08:28
● 2026-11-12 01:13:26

●A23.145.248.822026-10-09 → 2026-11-12 · 2 obs

● 2026-10-09 16:08:28
● 2026-11-12 01:13:26

●A23.145.248.832026-10-09 → 2026-11-12 · 2 obs

● 2026-10-09 16:08:28
● 2026-11-12 01:13:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	x.nic.courses, b.nic.courses, z.nic.courses, a.nic.courses...	12 records
rubyiris5.courses	aliza.ns.cloudflare.com, coby.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.92

NS records: aliza.ns.cloudflare.com, coby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubyiris5.courses (unsigned zone)

⏱️ Timing

Total: 410ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`23.145.248.83, 23.145.248.82`
NS	2	`aliza.ns.cloudflare.com, coby.ns.cloudflare.com`
SOA	1	`aliza.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)

Analysis

IP Addresses

rubyiris5.courses directs to two IP numbers, 23.145.248.82 and 23.145.248.83

Among the host names that share IP numbers with rubyiris5.courses are tough-wren91.network, umahale66.surf, nxjxfdz.garden and two others.

Name Servers

rubyiris5.courses is served by two delegated name servers, aliza.ns.cloudflare.com and coby.ns.cloudflare.com.

rubyiris5.courses has the same name server delegation as a number of other domains, such as kbyssyw.surf, st9860.garden, vabv3e.garden and two more.

rubyiris5.courses shares at least some of its name servers with other domains, including phonelookupmu7n6xv5.cfd, jjlhrce.cn, sultanwinproject.fit and two others.

These name servers are frequently seen alongside the name servers gracie.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

aliza.ns.cloudflare.com carries IP addresses 108.162.194.55, 162.159.38.55 and 172.64.34.55, with 3 other addresses beyond those.

coby.ns.cloudflare.com carries IP addresses 108.162.193.92, 172.64.33.92 and 173.245.59.92, with 3 other addresses beyond those.

rubyiris5.courses - robtex.com