🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`fullstackdev.courses`

DNSSEC	⚠️ Not signed
NS	`elisa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2636^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c236^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elisa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2236^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elisa.ns.cloudflare.com`
		A	108.162.194.54^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	162.159.38.54^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
		A	172.64.34.54^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisa.ns.cloudflare.com`
NS	`randall.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ceb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`randall.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`randall.ns.cloudflare.com`
		A	108.162.195.235^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	162.159.44.235^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	172.64.35.235^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
TXT	`google-site-verification=8-6hpQHTHu8FwEAHCK-964GwHQ_qPqonLu3DY3iCAO4`
SOA	`elisa.ns.cloudflare.com`dns@cloudflare.com serial=2414383943

`courses`

	DNSSEC	⚠️ Not signed
	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=1789323250

⚠️ On DNS blocklist: spam-tlds

Same first word

Similar names

devfullstack.com

devfullstack.com.br

devfullstack.cloud

devfullstack.dev.br

devfullstack.shop

Previous names

Next names

DNS History

2 records (2 active, 0 former)

●NSelisa.ns.cloudflare.com2026-09-11 → 2026-09-13 · 2 obs

● 2026-09-11 22:08:18
● 2026-09-13 18:55:52

●NSrandall.ns.cloudflare.com2026-09-11 → 2026-09-13 · 2 obs

● 2026-09-11 22:08:18
● 2026-09-13 18:55:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...	12 records
fullstackdev.courses	elisa.ns.cloudflare.com, randall.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.54

NS records: elisa.ns.cloudflare.com, randall.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fullstackdev.courses (unsigned zone)

⏱️ Timing

Total: 852ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`elisa.ns.cloudflare.com, randall.ns.cloudflare.com`
TXT	1	`google-site-verification=8-6hpQHTHu8FwEA`
SOA	1	`elisa.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

Two name servers handle the delegation for fullstackdev.courses: elisa.ns.cloudflare.com and randall.ns.cloudflare.com.

fullstackdev.courses shares its name server setup with other domains, including fanghui69.workers.dev, noisy-mouse-56df.pages.dev, kartutoto-bisa.com and two others.

There is at least partial name server overlap between fullstackdev.courses and other domains — dossierpolitico.com, welcomewagongroup.info, sbao.cc and two more among them.

These name servers are routinely deployed together with the name servers lucy.ns.cloudflare.com.

Host names with 6 IP numbers:

elisa.ns.cloudflare.com resolves to 108.162.194.54, 162.159.38.54 and 172.64.34.54 among others, with 3 other IP addresses in total.

randall.ns.cloudflare.com resolves to 108.162.195.235, 162.159.44.235 and 172.64.35.235 among others, with 3 other IP addresses in total.

fullstackdev.courses - robtex.com