🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`expr.app`

DNSSEC	⚠️ Not signed
NS	`alexia.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26af^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alexia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alexia.ns.cloudflare.com`
		A	108.162.194.175^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	162.159.38.175^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	172.64.34.175^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
NS	`doug.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`doug.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`doug.ns.cloudflare.com`
		A	108.162.193.159^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	172.64.33.159^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	173.245.59.159^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
SOA	`alexia.ns.cloudflare.com`dns@cloudflare.com serial=2413537337

`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

expr.org

expr.fi

expr.dev

expr.pro

expr.io

expr.eu

expr.love

expr.tv

expr.shop

expr.us

expr.ru

expr.pages.dev

expr.pl

expr.me

expr.win

expr.in

expr.cc

expr.de

expr.online

expr.com

expr.it

expr.nl

expr.fr

expr.se

expr.es

expr.life

expr.com.br

expr.workers.dev

expr.app

expr.club

expr.run

expr.fund

expr.co

expr.net

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Previous names

Next names

DNS History

2 records (2 active, 0 former)

●NSalexia.ns.cloudflare.com2026-09-03 → 2026-09-04 · 2 obs

● 2026-09-03 14:24:50
● 2026-09-04 18:11:18

●NSdoug.ns.cloudflare.com2026-09-03 → 2026-09-04 · 2 obs

● 2026-09-03 14:24:50
● 2026-09-04 18:11:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...	-
expr.app	doug.ns.cloudflare.com, alexia.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.175

NS records: doug.ns.cloudflare.com, alexia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for expr.app (unsigned zone)

⏱️ Timing

Total: 1345ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`alexia.ns.cloudflare.com, doug.ns.cloudflare.com`
SOA	1	`alexia.ns.cloudflare.com dns.cloudflare.`

Analysis

Name Servers

expr.app uses two name servers for its delegation: alexia.ns.cloudflare.com and doug.ns.cloudflare.com.

expr.app uses the same name servers as several other domains — among them ramanislit02.workers.dev, travelblog.org, audiowhiz.com.au and two more.

expr.app partially shares its NS delegation with several other domains, including codingplan-run-fast-cf.pages.dev, rakkel.hu, cpa163.cn and two others.

These name servers are regularly seen alongside dante.ns.cloudflare.com and gloria.ns.cloudflare.com as name servers.

Hostnames that resolve to 6 IP addresses:

Hostname alexia.ns.cloudflare.com directs to 108.162.194.175, 162.159.38.175 and 172.64.34.175 along with 3 other IP addresses.

Hostname doug.ns.cloudflare.com directs to 108.162.193.159, 172.64.33.159 and 173.245.59.159 along with 3 other IP addresses.

expr.app - robtex.com

expr.app

app