software4cnc.com - dns.ninja

`software4cnc.com`

DNSSEC	⚠️ Not signed
A	2001:1568::13^{🇨🇿 WEB4U2001:1568::/33}
		PTR	`php56.web4u.cz`
A	81.91.86.13^{🇨🇿 WEB4U81.91.80.0/21}
NS	`ns2.web4u.cz` ⭐
		A	2a02:a40:100:28ff::12^{🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.}
			PTR	`ns2.web4u.cz`
		A	85.207.53.12^{🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block}
			PTR	`ns2.web4u.cz`
NS	`ns.web4u.cz`
		A	2001:1568:fd::241^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`ns.web4u.cz`
		A	185.14.224.241^{🇨🇿 WEB4U185.14.224.0/23}
			PTR	`ns.web4u.cz`
MX	`mx1.mailchannels.net` ⭐
		A	54.69.1.140^{🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix}
			PTR	`ec2-54-69-1-140.us-west-2.compute.amazonaws.com`
MX	`mx2.mailchannels.net` ⭐
		A	54.187.177.89^{🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix}
			PTR	`ec2-54-187-177-89.us-west-2.compute.amazonaws.com`
SOA	`ns.web4u.cz`admin@web4u.cz 2025-05-05 #0

`com`

	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=1786566849

Subdomains

mail.software4cnc.com

Same first word

software4cnc.com

DNS History

7 records (6 active, 1 former)

●NSns.web4u.cz2016-12-19 → 2026-08-12 · 2 obs

● 2016-12-19 06:12:22
● 2026-08-12 20:35:16

●NSns2.web4u.cz2016-12-19 → 2026-08-12 · 2 obs

● 2016-12-19 06:12:22
● 2026-08-12 20:35:16

○MXmail.software4cnc.com2016-12-19 → 2017-11-28 · 4 obs

● 2016-12-19 06:12:22
● 2017-11-28 14:42:22
○ 2026-02-15 10:16:10
○ 2026-08-12 20:35:16

●MXmx1.mailchannels.net2026-02-15 → 2026-08-12 · 3 obs

○ 2017-11-28 14:42:22
● 2026-02-15 10:16:10
● 2026-08-12 20:35:16

●MXmx2.mailchannels.net2026-02-15 → 2026-08-12 · 3 obs

○ 2017-11-28 14:42:22
● 2026-02-15 10:16:10
● 2026-08-12 20:35:16

●A2001:1568::132016-12-19 → 2026-08-12 · 2 obs

● 2016-12-19 06:12:22
● 2026-08-12 20:35:16

●A81.91.86.132016-12-19 → 2026-08-12 · 2 obs

● 2016-12-19 06:12:22
● 2026-08-12 20:35:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net...	-
software4cnc.com	ns.web4u.cz, ns2.web4u.cz	-

✅ Authoritative Response

Server:185.14.224.241

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for software4cnc.com (unsigned zone)

⏱️ Timing

Total: 802ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.91.86.13`
AAAA	1	`2001:1568::13`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
MX	2	`mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10)`
SOA	1	`ns.web4u.cz admin.web4u.cz`

Analysis

Hierarchy

software4cnc.com is a parent domain of mail.software4cnc.com.

IP Addresses

software4cnc.com directs to two IP numbers, 81.91.86.13 and 2001:1568::13

Two other host names, along with mysql.spgroup.cz, katlov.com and 3px.cz, also share IP numbers with software4cnc.com.

Name Servers

Two name servers handle the delegation for software4cnc.com: ns2.web4u.cz and ns.web4u.cz.

software4cnc.com shares its NS records with other domains, for example dreamsbook.org, ham.cz, dilynakotle.cz and two others.

ns2.web4u.cz and ns.web4u.cz both carry two IP addresses. The A records for ns2.web4u.cz are 85.207.53.12 and 2a02:a40:100:28ff::12; the A records for ns.web4u.cz are 185.14.224.241 and 2001:1568:fd::241.

Mail Servers

software4cnc.com is served by two mail servers, mx1.mailchannels.net and mx2.mailchannels.net.

Among the domains sharing a mail server setup with software4cnc.com are theocgg.com, searchforthetruth.info, nanpafoundation.org and two others.

software4cnc.com shares at least some of its mail servers with other domains, such as helhetsdoktorn.nu and chinagarden.com.kw.

mx1.mailchannels.net and mx2.mailchannels.net each resolve to one IP number: mx1.mailchannels.net points to 54.69.1.140 and mx2.mailchannels.net points to 54.187.177.89.