🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stacksoft.courses`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:3fcd^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:9611^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.63.205^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.150.17^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carl.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carl.ns.cloudflare.com`
		A	108.162.193.106^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	172.64.33.106^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
		A	173.245.59.106^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carl.ns.cloudflare.com`
NS	`mira.ns.cloudflare.com`
		A	2606:4700:50::adf5:3acc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mira.ns.cloudflare.com`
		A	108.162.192.204^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	172.64.32.204^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	173.245.58.204^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
TXT	`MS=ms96925500`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.63.205, 172.67.150.17
		IPv6 hints	2606:4700:3030::6815:3fcd, 2606:4700:3036::ac43:9611
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com
SOA	`carl.ns.cloudflare.com`dns@cloudflare.com serial=2414857864

`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=1789567945

⚠️ On DNS blocklist: spam-tlds

Same first word

stacksoft.co

stacksoft.io

stacksoft.com

stacksoft.com.ar

stacksoft.xyz

stacksoft.shop

stacksoft.courses

stacksoft.co.uk

stacksoft.ru

Similar names

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NScarl.ns.cloudflare.com2026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

●NSmira.ns.cloudflare.com2026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

●A104.21.63.2052026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

●A172.67.150.172026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

●A2606:4700:3030::6815:3fcd2026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

●A2606:4700:3036::ac43:96112026-09-06 → 2026-09-16 · 2 obs

● 2026-09-06 13:24:00
● 2026-09-16 14:37:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	x.nic.courses, y.nic.courses, a.nic.courses, c.nic.courses...	12 records
stacksoft.courses	carl.ns.cloudflare.com, mira.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.204

NS records: carl.ns.cloudflare.com, mira.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stacksoft.courses (unsigned zone)

⏱️ Timing

Total: 671ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.63.205, 172.67.150.17`
AAAA	2	`2606:4700:3030::6815:3fcd, 2606:4700:3036::ac43:9611`
NS	2	`carl.ns.cloudflare.com, mira.ns.cloudflare.com`
TXT	1	`MS=ms96925500`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carl.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

stacksoft.courses resolves to four IP addresses: 104.21.63.205, 172.67.150.17, 2606:4700:3030::6815:3fcd and 2606:4700:3036::ac43:9611.

Two other host names, along with howdystar.com, grndsl.com and gocaffe.de, also share IP numbers with stacksoft.courses.

Name Servers

The NS records for stacksoft.courses delegate to carl.ns.cloudflare.com and mira.ns.cloudflare.com.

stacksoft.courses shares its NS records with other domains, for example corebluen.courses, snownova.org, ukpropertyfinance.co.uk and two others.

stacksoft.courses has at least partial name server overlap with other domains, such as mikolop.com, gov-havocai.com, veronikaduluuu.pages.dev and two others.

It is common to find these name servers paired with the name servers jo.ns.cloudflare.com.

DNS names with 6 IP addresses:

carl.ns.cloudflare.com maps to 108.162.193.106, 172.64.33.106, 173.245.59.106 and 3 additional IP addresses.

mira.ns.cloudflare.com maps to 108.162.192.204, 172.64.32.204, 173.245.58.204 and 3 additional IP addresses.

stacksoft.courses - robtex.com