tech-bau.com - dns.ninja

`tech-bau.com`

DNSSEC	⚠️ Not signed
A	185.204.218.140^{🇵🇱 CF-GDA185.204.216.0/22}
		PTR	`s140.cyber-folks.pl`
NS	`dns2.linuxpl.com` ⭐ ⚠️ Not in parent delegation
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`dns1.linuxpl.com` ⚠️ Not in parent delegation
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
NS	`dns7.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`ns7.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
MX	`mail.tech-bau.com` ⭐
		A	185.204.218.140^{🇵🇱 CF-GDA185.204.216.0/22}
			PTR	`s140.cyber-folks.pl`
TXT	`v=spf1 a mx include:spf.linuxpl.com ip4:185.204.218.140 ~all`
SOA	`dns2.linuxpl.com`hostmaster@tech-bau.com 2025-01-29 #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=1784006717

WOT: SAFE (95/100)

Subdomains

mail.tech-bau.com

Same first word

tech-bau.com

Similar names

bau-tech.com

bau-tech.ch

bau-tech.pl

bau-tech.ru

bau-tech.shop

DNS History

7 records (6 active, 1 former)

●NSdns1.linuxpl.com2020-01-19 → 2026-07-14 · 3 obs

○ 2017-02-06 10:00:06
● 2020-01-19 19:24:20
● 2026-07-14 05:26:44

●NSdns2.linuxpl.com2020-01-19 → 2026-07-14 · 3 obs

○ 2017-02-06 10:00:06
● 2020-01-19 19:24:20
● 2026-07-14 05:26:44

●NSdns7.linuxpl.com2015-05-23 → 2026-07-14 · 5 obs

● 2015-05-23 19:54:58
● 2017-02-06 10:00:06
○ 2020-01-19 19:24:20
● 2026-06-05 18:15:20
● 2026-07-14 05:26:44

●NSns7.linuxpl.com2015-05-23 → 2026-07-14 · 5 obs

● 2015-05-23 19:54:58
● 2017-02-06 10:00:06
○ 2020-01-19 19:24:20
● 2026-06-05 18:15:20
● 2026-07-14 05:26:44

●MXmail.tech-bau.com2015-05-23 → 2026-07-14 · 2 obs

● 2015-05-23 19:54:58
● 2026-07-14 05:26:44

●A185.204.218.1402026-06-05 → 2026-07-14 · 3 obs

○ 2020-01-19 19:24:20
● 2026-06-05 18:15:20
● 2026-07-14 05:26:44

○A213.133.101.72015-05-23 → 2020-01-19 · 4 obs

● 2015-05-23 19:54:58
● 2020-01-19 19:24:20
○ 2026-06-05 18:15:20
○ 2026-07-14 05:26:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tech-bau.com	ns7.linuxpl.com, dns7.linuxpl.com	2 records

✅ Authoritative Response

Server:94.152.254.111

NS records: ns7.linuxpl.com, dns7.linuxpl.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tech-bau.com (unsigned zone)

⏱️ Timing

Total: 264ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.204.218.140`
NS	2	`dns1.linuxpl.com, dns2.linuxpl.com`
MX	1	`mail.tech-bau.com (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.linuxpl.com ip4:`
SOA	1	`dns2.linuxpl.com hostmaster.tech-bau.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns7.linuxpl.com, dns7.linuxpl.com)

Analysis

Hierarchy

tech-bau.com serves as the parent of mail.tech-bau.com.

IP Addresses

tech-bau.com directs to one IP number, which is 185.204.218.140.

Among the host names that share IP numbers with tech-bau.com are mail.plecaki-szkolne.pl, s20.hekko.net.pl, mail.algun.pl and two others.

Name Servers

The domain tech-bau.com is delegated to these four name servers: dns1.linuxpl.com, dns2.linuxpl.com, dns7.linuxpl.com and ns7.linuxpl.com.

tech-bau.com has at least partial name server overlap with other domains, such as rynek-forex.pl, inkomp.com, abirose.pl and two others.

ns1.cyberfolks.pl, ns2.cyberfolks.pl and ns3.cyberfolks.pl — plus 7 other name servers — are commonly paired with these name servers.

dns1.linuxpl.com points to 94.152.254.111. dns2.linuxpl.com points to 94.152.255.111. dns7.linuxpl.com points to 94.152.255.111. ns7.linuxpl.com points to 94.152.254.111. Each host has exactly one IP address.

dns1.linuxpl.com along with ns7.linuxpl.com each resolve to 94.152.254.111 IP addresses.

dns2.linuxpl.com along with dns7.linuxpl.com each resolve to 94.152.255.111 IP addresses.

Mail Servers

tech-bau.com routes its mail through a single mail server, mail.tech-bau.com.

mail.tech-bau.com carries a single IP number, which is 185.204.218.140.