`checkos.net`

DNSSEC	⚠️ Not signed
A	5.189.138.77^{🇩🇪 CONTABO5.189.128.0/20}
		PTR	`vmi188885.contaboserver.net`
NS	`ns39.domaincontrol.com` ⭐
		A	2603:5:21d1::14^{🇺🇸 GODADDY-DNS2603:5:21d0::/44}
			PTR	`ns39.domaincontrol.com`
		A	97.74.109.20^{🇺🇸 GODADDY-DNS97.74.108.0/23}
			PTR	`ns39.domaincontrol.com`
NS	`ns40.domaincontrol.com`
		A	2603:5:22d1::14^{🇺🇸 GODADDY-DNS2603:5:22d0::/44}
			PTR	`ns40.domaincontrol.com`
		A	173.201.77.20^{🇺🇸 GODADDY-DNS173.201.76.0/23}
			PTR	`ns40.domaincontrol.com`
MX	`mail.checkos.net` ⭐
TXT	`v=spf1 ip4:5.189.138.77 ip6:2a02:c207:2018:8885:0:0:0:1 include:vmi188885.con...`
TXT	`D1509653`
TXT	`v=spf1 mx -all`
SOA	`ns39.domaincontrol.com`dns@jomax.net 2025-03-09 #6

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291465

Subdomains

mail.checkos.net

Same first word

checkos.net

checkos.com.br

checkos.com

Similar names

schoeck.lv

schoeck.us

schoeck.si

schoeck.sk

schoeck.info

she(0x636f636b).com

hkcosec.com

schoeck.de

schoeck.co.uk

schoeck.ru

schoeck.pl

schoeck.no

schocke.com

schoeck.it

schoeck.com

schoeck.ca

chocske.be

schoeck.hr

schoeck.fr

hes(0x636f636b).net

schoeck.se

schoeck.dk

schoeck.at

kochsec.com

schoeck.eu

schoeck.ag

checkso.com

schoeck.jp

schoeck.be

schoeck.ae

kochsec.org

schoeck.shop

schoeck.hu

schoeck.fi

schoeck.net

schoeck.es

schocke.de

kochsec.net

DNS History

6 records (4 active, 2 former)

●NSns39.domaincontrol.com2017-01-04 → 2026-03-23 · 2 obs

● 2017-01-04 05:12:04
● 2026-03-23 06:40:38

●NSns40.domaincontrol.com2017-01-04 → 2026-03-23 · 2 obs

● 2017-01-04 05:12:04
● 2026-03-23 06:40:38

●MXmail.checkos.net2026-03-23 → 2026-03-23 · 2 obs

○ 2017-09-19 19:16:20
● 2026-03-23 06:40:38

○MXsmtp.secureserver.net2017-01-04 → 2017-09-19 · 3 obs

● 2017-01-04 05:12:04
● 2017-09-19 19:16:20
○ 2026-03-23 06:40:38

○A184.168.41.12017-01-04 → 2017-09-19 · 3 obs

● 2017-01-04 05:12:04
● 2017-09-19 19:16:20
○ 2026-03-23 06:40:38

●A5.189.138.772026-03-23 → 2026-03-23 · 2 obs

○ 2017-09-19 19:16:20
● 2026-03-23 06:40:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
checkos.net	ns39.domaincontrol.com, ns40.domaincontrol.com	-

✅ Authoritative Response

Server:173.201.77.20

NS records: ns39.domaincontrol.com, ns40.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkos.net (unsigned zone)

⏱️ Timing

Total: 482ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.189.138.77`
NS	2	`ns39.domaincontrol.com, ns40.domaincontrol.com`
MX	1	`mail.checkos.net (pri: 10)`
TXT	3	`v=spf1 ip4:5.189.138.77 ip6:2a02:c207:20, D1509653...`
SOA	1	`ns39.domaincontrol.com dns.jomax.net`

Analysis

Hierarchy

checkos.net is a parent of mail.checkos.net.

IP Addresses

checkos.net points to a single IP number: 5.189.138.77.

Other host names such as checkos.com.br and vmi188885.contaboserver.net share IP numbers with checkos.net.

Name Servers

Delegation for checkos.net rests with two name servers, ns39.domaincontrol.com and ns40.domaincontrol.com.

checkos.net shares the same name server setup as other domains, including heatherdawnportraits.com, michaelbraydesign.com, livetoplan.com, introing.com and sellingwyominghomes.com.

Host names with two IP numbers: ns39.domaincontrol.com points to 2603:5:21d1::14 and 97.74.109.20; ns40.domaincontrol.com points to 2603:5:22d1::14 and 173.201.77.20.

Mail Servers

checkos.net is handled by a single mail server, mail.checkos.net.

checkos.net - robtex.com

checkos.net

net