`esrx.app`

DNSSEC	⚠️ Not signed
NS	`ns2.cigna.com` ⭐
		A	170.48.24.5^{🇺🇸 AS13348170.48.24.0/24}
			PTR	`ns2.cigna.com`
NS	`ns.cigna.com`
		A	170.48.11.4^{🇺🇸 AS11406170.48.11.0/24}
			PTR	`ns.cigna.com`
TXT	`v=spf1 -all`
SOA	`ns.cigna.com`dnsdhcpipam@cigna.com serial=104

`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

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esrx.holdings

esrx.ltd

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esrx.promo

esrx.jobs

esrx.com.hr

esrx.tube

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esrx.blog

esrx.shopping

esrx.info

esrx.hr

esrx.biz

esrx.ventures

esrx.mobi

esrx.cn

esrx.us

esrx.app

esrx.store

esrx.net

esrx.cloud

esrx.name

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DNS History

2 records (2 active, 0 former)

●NSns.cigna.com2026-03-16 → 2026-03-22 · 2 obs

● 2026-03-16 14:29:16
● 2026-03-22 22:16:42

●NSns2.cigna.com2026-03-16 → 2026-03-22 · 2 obs

● 2026-03-16 14:29:16
● 2026-03-22 22:16:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
esrx.app	ns2.cigna.com, ns.cigna.com	-

✅ Authoritative Response

Server: 170.48.24.5

NS records: ns2.cigna.com, ns.cigna.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for esrx.app (unsigned zone)

⏱️ Timing

Total: 413ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.cigna.com, ns.cigna.com`
TXT	1	`v=spf1 -all`
SOA	1	`ns.cigna.com dnsdhcpipam.cigna.com`

Analysis

Name Servers

Two name servers ns2.cigna.com and ns.cigna.com are delegated to esrx.app.

esrx.app uses the same name server configuration as other domains, such as theanswerisknow.net, proactive-outcomes.com, cignacorporation.com, onsitehealthphilly.com and express-scriptsmedicare.co.

esrx.app at least partially shares name servers with other domains such as cignahealthcaro.com, xn--cignahalthcar-g1bh.com, cignyhealthcare.com, mdliveevernorth.cm and thecignagroup.mx.

these name servers are commonly used with the name servers dns-publicprimary-wdc.sys.cigna.com.

Host names with a single IP address:

ns2.cigna.com points to 170.48.24.5

ns.cigna.com points to 170.48.11.4

esrx.app - robtex.com

esrx.app

app