`arm.cz`

DNSSEC	🔒 Signed (DS record present)
A	37.9.175.164^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
		PTR	`ing.r3.websupport.sk`
NS	`ns.forpsi.net` ⭐
		A	2001:15e8:101:1::c282^{🇨🇿 INTERNET-CZ2001:15e8::/32}
			PTR	`ns.forpsi.net`
		A	81.2.194.130^{🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.}
			PTR	`ns.forpsi.net`
NS	`ns.forpsi.cz`
		A	2001:15e8:201:1::d1b9^{🇨🇿 INTERNET-CZ2001:15e8::/32}
			PTR	`ns.forpsi.cz`
		A	81.2.209.185^{🇨🇿 INTERNET-CZ81.2.209.0/24}
			PTR	`ns.forpsi.cz`
NS	`ns.forpsi.it`
		A	2a00:6d41:2:1::5^{🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network}
			PTR	`ns.forpsi.it`
		A	95.110.254.165^{🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network}
			PTR	`host165-254-110-95.serverdedicati.aruba.it`
MX	`arm-cz.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::c^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::4^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr04cu00504.inbound.protection.outlook.com`
		A	52.101.68.15^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
TXT	`MS=ms20967498`
TXT	`brevo-code:dc70ca7dad4012df934b391306e17f0a`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`c26590e6ddd249d6f6b8dc831117dd9eddf8f9417545af46d1a3102de6b2482a`
SOA	`ns.forpsi.net`admin@forpsi.com 2026-07-20 #1

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1784724440

WOT: SAFE (60/100)

Subdomains

www.arm.cz

Same first word

arm.kg

arm.asso.mc

arm.lt

arm.ph

arm.vn

arm.uno

arm.jp

arm.edu.pl

arm.com.mx

arm.skin

arm.solutions

arm.us

arm.ltd

arm.biz

arm.technology

arm.cz

arm.education

arm.com.ru

arm.computer

arm.in

arm.co.uk

arm.company

arm.net.au

arm.de

arm.com

arm.by

arm.pl

arm.fr

arm.no

arm.gives

arm.co.za

arm.com.au

arm.co.gg

arm.co.th

arm.ag

arm.com.tw

arm.web.id

arm.co.com

arm.krakow.pl

arm.la

arm.si

arm.in.ua

arm.gov.pl

arm.net

arm.com.ng

arm.catholic.edu.au

arm.nl

arm.graphics

arm.my

arm.com.sg

arm.com.my

arm.hr

arm.tools

arm.equipment

arm.asia

arm.im

arm.com.hk

arm.gov

arm.ee

arm.pw

arm.in.th

arm.dp.ua

arm.email

arm.eu

arm.lu

arm.services

arm.lol

arm.enterprises

arm.pm

arm.training

arm.sk

arm.tv

arm.co.il

arm.amsterdam

arm.ch

arm.coop

arm.limited

arm.com.pk

arm.co.id

arm.wiki

arm.group

arm.co

arm.com.tr

arm.chat

arm.be

arm.my.id

arm.marketing

arm.io

arm.support

arm.international

arm.cl

arm.uk

arm.me

arm.spb.ru

arm.ru

arm.partners

arm.se

arm.one

arm.dk

arm.es

arm.careers

arm.art

arm.pe

arm.ac.uk

arm.at

arm.kz

arm.ms

Similar names

mar.de

mra.org.tw

mar.pet

mra.tel

mar.be

ram.si

ram.at

mar.ts.it

mra.es

rma.group

rma.ca

ram.by

amr.co.jp

rma.com.mx

rma.kr

mar.pe

ram.university

mar.us

amr.one

ram.net.au

mar.ru

ram.ne.jp

rma.org

mar.dev

rma.se

mar.autos

mar.qa

amr.ro

mra.no

rma.tokyo

rma.edu

rma.llc

amr.co.id

mar.ms

amr.pl

mra.si

mra.solutions

mra.fm

ram.ro

mra.se

rma.cz

amr.store

mar.pt

mar.com.pa

ram.kr

amr.agency

ram.com.au

amr.de

mra.com.my

mra.co.ir

ram.org.bo

ram.co

rma.ind.br

mra.co.kr

amr.no

ram.com

amr.energy

amr.com.mx

mar.co.jp

ram.com.ua

rma.com.na

rma.hu

amr.pt

amr.ae

rma.cl

rma.sk

mar.sg

mar.cx

mar.hr

mra.dk

rma.ac.be

ram.en.it

ram.com.eg

rma.my

mra.mw

mar.fi

rma.net

amr.org.mx

amr.education

ram.ee

DNS History

14 records (5 active, 9 former)

●NSns.forpsi.cz2015-06-14 → 2026-07-22 · 3 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2026-07-22 13:27:30

●NSns.forpsi.it2015-06-14 → 2026-07-22 · 3 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2026-07-22 13:27:30

●NSns.forpsi.net2015-06-14 → 2026-07-22 · 3 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2026-07-22 13:27:30

○NSns1.ignum.com2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

○NSns1.ignum.cz2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

○NSns2.ignum.cz2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

●MXarm-cz.mail.protection.outlook.com2026-07-05 → 2026-07-22 · 3 obs

○ 2021-08-31 11:28:44
● 2026-07-05 03:59:04
● 2026-07-22 13:27:30

○MXd138.server4u.cz2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

○MXin.smtp.cz2015-06-14 → 2021-08-31 · 5 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2021-08-31 11:28:44
○ 2026-07-05 03:59:04
○ 2026-07-22 13:27:30

○MXmx.smtp.cz2015-06-14 → 2021-08-31 · 5 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2021-08-31 11:28:44
○ 2026-07-05 03:59:04
○ 2026-07-22 13:27:30

○MXmx2.web4u.cz2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

○A31.15.10.232015-06-14 → 2021-08-31 · 5 obs

○ 2009-07-02 08:12:56
● 2015-06-14 02:28:26
● 2021-08-31 11:28:44
○ 2026-07-05 03:59:04
○ 2026-07-22 13:27:30

●A37.9.175.1642026-07-05 → 2026-07-22 · 3 obs

○ 2021-08-31 11:28:44
● 2026-07-05 03:59:04
● 2026-07-22 13:27:30

○A81.91.84.902009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 08:12:56
○ 2015-06-14 02:28:26
○ 2026-07-22 13:27:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
arm.cz	ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net	2 records

✅ Authoritative Response

Server:81.2.194.130

NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1318ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.164`
NS	3	`ns.forpsi.cz, ns.forpsi.it...`
MX	1	`arm-cz.mail.protection.outlook.com (pri:`
TXT	4	`MS=ms20967498, brevo-code:dc70ca7dad4012df934b391306e17...`
SOA	1	`ns.forpsi.net admin.forpsi.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)

Analysis

Hierarchy

arm.cz serves as the parent of www.arm.cz.

IP Addresses

arm.cz has exactly one IP address — 37.9.175.164.

profik.info, archangels.cz, www.priam.at plus two other host names have IP numbers in common with arm.cz.

Name Servers

arm.cz has three name servers — ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.

arm.cz has at least partial name server overlap with other domains, such as erbstudio.sk, kompletnet.cz, svepravnyvcelar.cz and two others.

It is common to find these name servers paired with the name servers ns.forpsi.us.

Each of ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net points to two IP numbers. ns.forpsi.cz points to 81.2.209.185 and 2001:15e8:201:1::d1b9. ns.forpsi.it points to 95.110.254.165 and 2a00:6d41:2:1::5. ns.forpsi.net points to 81.2.194.130 and 2001:15e8:101:1::c282.

Mail Servers

arm.cz uses one mail server — arm-cz.mail.protection.outlook.com.

arm-cz.mail.protection.outlook.com has 8 IP addresses: 52.101.68.15, 52.101.73.1, 52.101.73.11 plus 5 more.

arm.cz - robtex.com

arm.cz

cz

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`arm.cz`

`cz`