🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stackback.app`

DNSSEC	⚠️ Not signed
NS	`harlee.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlee.ns.cloudflare.com`
		A	108.162.194.238^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlee.ns.cloudflare.com`
		A	162.159.38.238^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlee.ns.cloudflare.com`
		A	172.64.34.238^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlee.ns.cloudflare.com`
NS	`sergi.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c344^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sergi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2344^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sergi.ns.cloudflare.com`
		A	108.162.195.68^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	162.159.44.68^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	172.64.35.68^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
SOA	`harlee.ns.cloudflare.com`dns@cloudflare.com serial=2413144021

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

stackback.app

stackback.com

stackback.co.uk

stackback.xyz

Similar names

backstack.sh

backstack.ru

backstack.net

backstack.ai

backstack.com

Previous names

Next names

DNS History

2 records (2 active, 0 former)

●NSharlee.ns.cloudflare.com2026-08-28 → 2026-08-30 · 2 obs

● 2026-08-28 21:41:08
● 2026-08-30 19:52:38

●NSsergi.ns.cloudflare.com2026-08-28 → 2026-08-30 · 2 obs

● 2026-08-28 21:41:08
● 2026-08-30 19:52:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
stackback.app	harlee.ns.cloudflare.com, sergi.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.68

NS records: harlee.ns.cloudflare.com, sergi.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackback.app (unsigned zone)

⏱️ Timing

Total: 710ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`harlee.ns.cloudflare.com, sergi.ns.cloudflare.com`
SOA	1	`harlee.ns.cloudflare.com dns.cloudflare.`

Analysis

Name Servers

stackback.app is delegated to two name servers: harlee.ns.cloudflare.com and sergi.ns.cloudflare.com.

stackback.app uses the same name servers as several other domains — among them tarotmarsella.com.es, maverickkuhn.workers.dev, elegantmediapros.com and two more.

There is at least partial name server overlap between stackback.app and other domains — italiacheamo.com, limotrafiken.com, justin-989.workers.dev and two more among them.

These name servers frequently co-occur with the name servers aitana.ns.cloudflare.com and rene.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

harlee.ns.cloudflare.com resolves to 108.162.194.238, 162.159.38.238, 172.64.34.238 and 3 other IP addresses.

sergi.ns.cloudflare.com resolves to 108.162.195.68, 162.159.44.68, 172.64.35.68 and 3 other IP addresses.

stackback.app - robtex.com

stackback.app

app