`u.app`

DNSSEC	⚠️ Not signed
NS	`dns1.cscdns.net` ⭐ 🔒
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`dns2.cscdns.net` 🔒
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
SOA	`dns1.cscdns.net`hostmaster@cscdns.net 2020-07-20 #3

`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

u.org

u.careers

u.ventures

u.hamburg

u.tw.cn

u.bank

u.sn.cn

u.sk

u.ht

u.pl

u.io

u.pn

u.solutions

u.community

u.akamaiedge.net

u.tours

u.ua

u.com.ua

u.co.uk

u.vacations

u.school

u.team

u.fail

u.land

u.gg

u.town

u.vu

u.sb

u.farm

u.cl

u.ltd

u.edu.vn

u.travel

u.fm

u.digital

u.net.my

u.skr.jp

u.tv

u.zone

u.kg

u.from.tv

u.hb.cn

u.today

u.plus

u.show

u.mil.no

u.page

u.cards

u.ro

u.td

u.express

u.nx.cn

u.sx.cn

u.nu

u.fr

u.de

u.university

u.guru

u.co.zw

u.tt

u.gp

u.com.mx

u.zip

u.od.ua

u.my

u.taxi

u.ls

u.bj.cn

u.run

u.wales

u.uk

u.finance

u.sc

u.tax

u.cc

u.af

u.et

u.cool

u.cn

u.fj.cn

u.is

u.pe

u.beer

u.design

u.qh.cn

u.cz

u.ac

u.vg

u.app

u.tools

u.ms

u.email

u.dp.ua

u.com.my

u.org.ua

u.srl

u.vip

u.dep.no

u.nf

u.co

Similar names

u.gold

u.at

u.ae

u.ai

u.cx

u.to

u.tech

u.net.id

u.ly

u.hn

u.id

u.boutique

u.photos

u.cash

u.st

u.am

DNS History

2 records (2 active, 0 former)

●NSdns1.cscdns.net2026-03-16 → 2026-03-23 · 2 obs

● 2026-03-16 21:59:02
● 2026-03-23 11:06:26

●NSdns2.cscdns.net2026-03-16 → 2026-03-23 · 2 obs

● 2026-03-16 21:59:02
● 2026-03-23 11:06:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
u.app	dns2.cscdns.net, dns1.cscdns.net	-

✅ Authoritative Response

Server:156.154.130.100

NS records: dns2.cscdns.net, dns1.cscdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u.app (unsigned zone)

⏱️ Timing

Total: 725ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns1.cscdns.net, dns2.cscdns.net`
SOA	1	`dns1.cscdns.net hostmaster.cscdns.net`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

Name Servers

u.app is delegated to two name servers dns1.cscdns.net and dns2.cscdns.net.

u.app shares the same name server setup as other domains, for instance carglass.biz, goldmansachsvantage.net, revolutionmoney.org, upsracing.eu and rrmc-na.com.

u.app at least partially shares name servers with other domains, for instance habasit.hr.

Host names with two IP numbers:

The host name dns1.cscdns.net points to 2610:a1:1022::100 and 156.154.130.100; the host name dns2.cscdns.net points to 2610:a1:1023::100 and 156.154.131.100.

u.app - robtex.com

u.app

app