🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`usefullstackai.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:d1^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:8049^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.209^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.73^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aiden.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b37^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c137^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aiden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2137^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aiden.ns.cloudflare.com`
		A	108.162.193.55^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	172.64.33.55^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	173.245.59.55^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
NS	`dolly.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a62^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c062^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dolly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2062^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dolly.ns.cloudflare.com`
		A	108.162.192.98^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	172.64.32.98^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	173.245.58.98^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
TXT	`google-site-verification=RtO8d8GL--6xL6K6NDexF9Nn7cV05-O985NYs1fM8w4`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.209, 172.67.128.73
		IPv6 hints	2606:4700:3031::6815:d1, 2606:4700:3035::ac43:8049
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=162, name=cloudflare-ech.com
SOA	`aiden.ns.cloudflare.com`dns@cloudflare.com serial=2415092422

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1793146156

Same first word

usefullstackai.com

Previous names

Next names

DNS History

11 records (7 active, 4 former)

●NSaiden.ns.cloudflare.com2026-09-10 → 2026-10-28 · 2 obs

● 2026-09-10 23:00:28
● 2026-10-28 00:34:42

●NSdolly.ns.cloudflare.com2026-09-10 → 2026-10-28 · 2 obs

● 2026-09-10 23:00:28
● 2026-10-28 00:34:42

●MXsmtp.google.com2026-09-10 → 2026-10-28 · 2 obs

● 2026-09-10 23:00:28
● 2026-10-28 00:34:42

●A104.21.0.2092026-10-28 → 2026-10-28 · 3 obs

○ 2026-09-10 23:00:28
● 2026-10-28 00:34:36
● 2026-10-28 00:34:42

●A172.67.128.732026-10-28 → 2026-10-28 · 3 obs

○ 2026-09-10 23:00:28
● 2026-10-28 00:34:36
● 2026-10-28 00:34:42

○A188.114.96.02026-09-10 → 2026-09-10 · 3 obs

● 2026-09-10 23:00:28
○ 2026-10-28 00:34:36
○ 2026-10-28 00:34:42

○A188.114.97.02026-09-10 → 2026-09-10 · 3 obs

● 2026-09-10 23:00:28
○ 2026-10-28 00:34:36
○ 2026-10-28 00:34:42

●A2606:4700:3031::6815:d12026-10-28 → 2026-10-28 · 3 obs

○ 2026-09-10 23:00:28
● 2026-10-28 00:34:36
● 2026-10-28 00:34:42

●A2606:4700:3035::ac43:80492026-10-28 → 2026-10-28 · 3 obs

○ 2026-09-10 23:00:28
● 2026-10-28 00:34:36
● 2026-10-28 00:34:42

○A2a06:98c1:3120::2026-09-10 → 2026-09-10 · 3 obs

● 2026-09-10 23:00:28
○ 2026-10-28 00:34:36
○ 2026-10-28 00:34:42

○A2a06:98c1:3121::2026-09-10 → 2026-09-10 · 3 obs

● 2026-09-10 23:00:28
○ 2026-10-28 00:34:36
○ 2026-10-28 00:34:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...	-
usefullstackai.com	dolly.ns.cloudflare.com, aiden.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.98

NS records: dolly.ns.cloudflare.com, aiden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usefullstackai.com (unsigned zone)

⏱️ Timing

Total: 281ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.128.73, 104.21.0.209`
AAAA	2	`2606:4700:3031::6815:d1, 2606:4700:3035::ac43:8049`
NS	2	`aiden.ns.cloudflare.com, dolly.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=RtO8d8GL--6xL6K, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aiden.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dolly.ns.cloudflare.com, dolly.ns.cloudflare.com, dolly.ns.cloudflare.com...)

Analysis

IP Addresses

usefullstackai.com directs to four IP numbers, which are 104.21.0.209, 172.67.128.73, 2606:4700:3031::6815:d1 and 2606:4700:3035::ac43:8049.

www.oscar-oe.gr, 3477b.top, se-portal.hu and two other host names share IP numbers with usefullstackai.com.

Name Servers

usefullstackai.com is delegated to two name servers: aiden.ns.cloudflare.com and dolly.ns.cloudflare.com.

usefullstackai.com uses the same name servers as several other domains — among them functionaltraininginstituteusa.com, k9bookkeepingassociates.com, kantersinstallatietechniekpro.com and two more.

At least some of usefullstackai.com's name servers are shared with other domains, for example get-kitchen-keep.pages.dev, 763jj.com, 440se.com and two more.

It is common for these name servers to be used in conjunction with the name servers sierra.ns.cloudflare.com, dom.ns.cloudflare.com and zoe.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

aiden.ns.cloudflare.com resolves to 108.162.193.55, 172.64.33.55, 173.245.59.55 and 3 other IP addresses.

dolly.ns.cloudflare.com resolves to 108.162.192.98, 172.64.32.98, 173.245.58.98 and 3 other IP addresses.

Mail Servers

Mail for usefullstackai.com is handled by a single mail server, smtp.google.com.

usefullstackai.com uses an identical mail server configuration to several other domains — among them mbagrp.com, nycourtsgov.com, www.framing.it and two more.

usefullstackai.com overlaps on mail servers with several other domains, for example hutabarat.com, gowoof.co.uk, paradortaiwan.com and bigoceanwomen.org.

smtp.google.com resolves to 9 IP addresses — 142.251.16.26, 142.251.16.27, 142.251.163.26 and 6 others.

usefullstackai.com - robtex.com