`ns4.linuxcolumbus.com`

DNSSEC	⚠️ Not signed
A	76.10.194.81^{🇺🇸 BLUEMILE76.10.192.0/20}
		PTR	`ns4.linuxcolumbus.com`
		PTR	`ns6.userfriendlyis.com`

`linuxcolumbus.com`

	DNSSEC	⚠️ Not signed
	A	76.10.194.75^{🇺🇸 BLUEMILE76.10.192.0/20}
	NS	`ns4.linuxcolumbus.com` ⭐
	NS	`ns2.linuxcolumbus.com`
	MX	`mail.linuxcolumbus.com` ⭐
	TXT	`v=spf1 ip4:76.10.194.64/27 a mx ptr ~all`
	SOA	`ns4.linuxcolumbus.com`hostmaster@linuxcolumbus.com serial=1338930226

PTR for

81.194.10.76.in-addr.arpa

NS for

Previously NS for

oqp.us

Same first word

ns4.com.br

ns4.fr

ns4.co

ns4.in-berlin.de

ns4.hu

ns4.fj

ns4.ma.gov.br

ns4.ni

ns4.net.pl

ns4.to.gov.br

ns4.mycloudnas.com

ns4.is-a.dev

ns4.upsunapp.com

ns4.police.uk

ns4.mircloud.host

ns4.nl

ns4.uk

ns4.gov.rs

ns4.ie

ns4.mynascloud.com

ns4.dyndns.org

ns4.vg

ns4.ru

ns4.pe.gov.br

ns4.dev

ns4.gov.mu

ns4.co.kr

ns4.duckdns.org

ns4.mil.cn

ns4.fastlylb.net

ns4.altervista.org

ns4.gov.mo

ns4.gov.ao

ns4.biz

ns4.pr.gov.br

ns4.cl

ns4.j.scaleforce.net

ns4.no

ns4.gov.mn

ns4.net

ns4.sinaapp.com

ns4.org

ns4.mediatech.by

ns4.alp1.ae.flow.ch

ns4.nc.tr

ns4.nhs.uk

ns4.de

ns4.ddns.net

ns4.siteleaf.net

ns4.uz

ns4.us

ns4.dk

ns4.yandexcloud.net

ns4.myqnapcloud.com

ns4.site

ns4.fi

ns4.ms.gov.br

ns4.kasserver.com

ns4.lib.md.us

ns4.nz

ns4.es.gov.br

ns4.it.com

ns4.jelastic.saveincloud.net

ns4.in

ns4.cloudjiffy.net

ns4.cloudflare.net

ns4.gov.bh

ns4.fastly-edge.com

ns4.net.au

ns4.com

ns4.go.gov.br

ns4.nic.in

ns4.123hjemmeside.dk

Similar names

s4n.net

s4n.org

sn4.fi

4sn.de

s4n.nl

4ns.pl

4ns.org

s4n.de

sn4.com.br

sn4.com

n4s.net

n4s.de

s4n.cc

n4s.cn

4ns.ru

sn4.org

n4s.co.uk

4ns.eu

s4n.com.br

n4s.fi

4sn.com

4sn.nl

sn4.co.uk

n4s.us

n4s.pl

4ns.su

n4s.org

4ns.com

sn4.me

sn4.eu

4ns.de

4ns.co.uk

s4n.co

4ns.nl

sn4.de

4ns.in

n4s.com

n4s.fr

sn4.ru

s4n.ru

n4s.ca

sn4.cc

n4s.ru

4ns.cn

4ns.hu

sn4.ch

4ns.net

DNS History

1 record (1 active, 0 former)

●A76.10.194.812015-08-10 → 2026-03-26 · 2 obs

● 2015-08-10 05:22:28
● 2026-03-26 02:02:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxcolumbus.com	ns2.linuxcolumbus.com, ns4.linuxcolumbus.com	2 records

✅ Authoritative Response

Server:76.10.194.81

NS records: ns2.linuxcolumbus.com, ns4.linuxcolumbus.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxcolumbus.com (unsigned zone)

⏱️ Timing

Total: 158ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.10.194.81`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns2.linuxcolumbus.com, ns4.linuxcolumbus.com)

Analysis

Name Server Role

The name server ns4.linuxcolumbus.com handles 76.194.10.76.in-addr.arpa, 70.194.10.76.in-addr.arpa, 87.194.10.76.in-addr.arpa, 91.194.10.76.in-addr.arpa, userfriendlyis.com and a few other domains.

Together with ns4.linuxcolumbus.com, ns2.linuxcolumbus.com, ns2.userfriendlyis.com and ns4.userfriendlyis.com are commonly used as name servers.

IP Addresses

ns4.linuxcolumbus.com points to a single IP: 76.10.194.81.

Other host names, such as ns6.userfriendlyis.com, share IP numbers with ns4.linuxcolumbus.com.

ns4.linuxcolumbus.com - robtex.com