systembaker.com - dns.ninja

`systembaker.com`

DNSSEC	⚠️ Not signed
A	2a03:1840:1:963::40:101^{🇨🇿 HOST-TELECOM2a03:1840:1::/48 .COM s.r.o.}
		PTR	`asterix2.mathesio.com`
A	176.74.218.200^{🇨🇿 HOST-TELECOM176.74.216.0/21 .COM s.r.o.}
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	`hermes.mathesio.com` ⭐
TXT	`v=spf1 a mx ptr ip4:176.74.218.75 ip6:2a03:1840:1:963::40:100 -all`
SOA	`ns.web4u.cz`admin@web4u.cz 2026-04-23 #4

`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=1784143007

Same first word

systembaker.com

DNS History

9 records (5 active, 4 former)

●NSns.web4u.cz2016-12-18 → 2026-07-15 · 2 obs

● 2016-12-18 20:36:30
● 2026-07-15 19:22:10

●NSns2.web4u.cz2016-12-18 → 2026-07-15 · 2 obs

● 2016-12-18 20:36:30
● 2026-07-15 19:22:10

●MXhermes.mathesio.com2026-02-18 → 2026-07-15 · 3 obs

○ 2018-10-21 18:49:02
● 2026-02-18 16:35:08
● 2026-07-15 19:22:10

○MXmail.systembaker.com2016-12-18 → 2018-10-21 · 4 obs

● 2016-12-18 20:36:30
● 2018-10-21 18:49:02
○ 2026-02-18 16:35:08
○ 2026-07-15 19:22:10

○A172.16.150.82018-10-21 → 2018-10-21 · 4 obs

○ 2016-12-18 20:36:30
● 2018-10-21 18:49:02
○ 2026-02-18 16:35:08
○ 2026-07-15 19:22:10

●A176.74.218.2002026-02-18 → 2026-07-15 · 3 obs

○ 2018-10-21 18:49:02
● 2026-02-18 16:35:08
● 2026-07-15 19:22:10

○A2001:1568::132016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 20:36:30
○ 2018-10-21 18:49:02
○ 2026-07-15 19:22:10

●A2a03:1840:1:963::40:1012026-02-18 → 2026-07-15 · 3 obs

○ 2018-10-21 18:49:02
● 2026-02-18 16:35:08
● 2026-07-15 19:22:10

○A81.91.86.132016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 20:36:30
○ 2018-10-21 18:49:02
○ 2026-07-15 19:22:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
systembaker.com	ns.web4u.cz, ns2.web4u.cz	-

✅ Authoritative Response

Server:85.207.53.12

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for systembaker.com (unsigned zone)

⏱️ Timing

Total: 775ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`176.74.218.200`
AAAA	1	`2a03:1840:1:963::40:101`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
MX	1	`hermes.mathesio.com (pri: 10)`
TXT	1	`v=spf1 a mx ptr ip4:176.74.218.75 ip6:2a`
SOA	1	`ns.web4u.cz admin.web4u.cz`

Analysis

IP Addresses

systembaker.com has two IP addresses: 176.74.218.200 and 2a03:1840:1:963::40:101

sqr.cz, proenergyforum.sk, www.burinsky.cz plus two other host names have IP numbers in common with systembaker.com.

Name Servers

systembaker.com uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.

The name server configuration of systembaker.com is shared with other domains, for instance investice-poradenstvi.cz, artland.cz, o-otci.cz and two others.

The two host names ns2.web4u.cz and ns.web4u.cz each have a pair of IP addresses: ns2.web4u.cz has 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz has 185.14.224.241 and 2001:1568:fd::241.

Mail Servers

systembaker.com uses one mail server — hermes.mathesio.com.

The mail server setup of systembaker.com matches that of other domains such as mathesio.cz, mathesio.com, matcomp.cz and two others.