sys-tech.pl - dns.ninja

`sys-tech.pl`

DNSSEC	⚠️ Not signed
A	91.236.131.78^{🇵🇱 TARRCI-AS91.236.131.0/24 SEOHOST}
		PTR	`h78.seohost.pl`
NS	`ns1.seohost.pl` ⭐
		A	185.200.47.250^{🇵🇱 DATASPACE185.200.44.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-18520047250.seohost-mail.eu`
		A	188.210.221.52^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-18821022152.seohost-mail.eu`
NS	`ns2.seohost.pl`
		A	188.210.221.179^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-188210221179.seohost-mail.eu`
		A	188.210.223.253^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-188210223253.seohost-mail.eu`
MX	`mail.sys-tech.pl` ⭐
		A	91.236.131.78^{🇵🇱 TARRCI-AS91.236.131.0/24 SEOHOST}
			PTR	`h78.seohost.pl`
TXT	`v=spf1 redirect=_spf-h78.microhost.pl`
SOA	`ns1.seohost.pl`hostmaster@sys-tech.pl 2026-05-30 #3

`pl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a-dns.pl` ⭐
	NS	`b-dns.pl`
	NS	`d-dns.pl`
	NS	`f-dns.pl`
	NS	`h-dns.pl`
	NS	`j-dns.pl`
	TXT	`ccTLD of Poland`
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1781505120

Previously MX for

sys-tech.pl

Subdomains

mail.sys-tech.pl

Same first word

sys-tech.com.cn

sys-tech.at

sys-tech.com

sys-tech.ru

sys-tech.info

sys-tech.dk

sys-tech.pl

sys-tech.com.au

sys-tech.de

sys-tech.net

sys-tech.eu

sys-tech.za.net

Similar names

tech-sys.com

tech-sys.ru

tech-sys.de

tech-sys.org

tech-sys.co.jp

tech-sys.at

DNS History

10 records (4 active, 6 former)

○NSns1.nazwa.pl2015-06-14 → 2026-02-21 · 4 obs

● 2015-06-14 13:16:08
● 2026-02-21 13:55:22
○ 2026-04-02 03:48:46
○ 2026-06-15 15:54:16

●NSns1.seohost.pl2026-04-02 → 2026-06-15 · 3 obs

○ 2026-02-21 13:55:22
● 2026-04-02 03:48:46
● 2026-06-15 15:54:16

○NSns2.nazwa.pl2015-06-14 → 2026-02-21 · 4 obs

● 2015-06-14 13:16:08
● 2026-02-21 13:55:22
○ 2026-04-02 03:48:46
○ 2026-06-15 15:54:16

●NSns2.seohost.pl2026-04-02 → 2026-06-15 · 3 obs

○ 2026-02-21 13:55:22
● 2026-04-02 03:48:46
● 2026-06-15 15:54:16

○NSns3.nazwa.pl2015-06-14 → 2026-02-21 · 4 obs

● 2015-06-14 13:16:08
● 2026-02-21 13:55:22
○ 2026-04-02 03:48:46
○ 2026-06-15 15:54:16

●MXmail.sys-tech.pl2026-04-02 → 2026-06-15 · 3 obs

○ 2026-02-21 13:55:22
● 2026-04-02 03:48:46
● 2026-06-15 15:54:16

○MXsys-tech.pl2015-06-14 → 2026-02-21 · 4 obs

● 2015-06-14 13:16:08
● 2026-02-21 13:55:22
○ 2026-04-02 03:48:46
○ 2026-06-15 15:54:16

○A77.55.91.1402015-06-14 → 2017-06-08 · 4 obs

● 2015-06-14 13:16:08
● 2017-06-08 02:29:16
○ 2026-02-21 13:55:22
○ 2026-06-15 15:54:16

○A85.128.207.1862026-02-21 → 2026-02-21 · 4 obs

○ 2017-06-08 02:29:16
● 2026-02-21 13:55:22
○ 2026-04-02 03:48:46
○ 2026-06-15 15:54:16

●A91.236.131.782026-04-02 → 2026-06-15 · 3 obs

○ 2026-02-21 13:55:22
● 2026-04-02 03:48:46
● 2026-06-15 15:54:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	j-dns.pl, h-dns.pl, a-dns.pl, d-dns.pl...	-
sys-tech.pl	ns2.seohost.pl, ns1.seohost.pl	4 records

✅ Authoritative Response

Server:185.200.47.250

NS records: ns2.seohost.pl, ns1.seohost.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys-tech.pl (unsigned zone)

⏱️ Timing

Total: 523ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.236.131.78`
NS	2	`ns1.seohost.pl, ns2.seohost.pl`
MX	1	`mail.sys-tech.pl (pri: 10)`
TXT	1	`v=spf1 redirect=_spf-h78.microhost.pl`
SOA	1	`ns1.seohost.pl hostmaster.sys-tech.pl`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.seohost.pl, ns2.seohost.pl, ns1.seohost.pl...)

Analysis

Hierarchy

sys-tech.pl is a parent domain of mail.sys-tech.pl.

IP Addresses

sys-tech.pl has exactly one IP address — 91.236.131.78.

mail.szotek.biz, mail.michu.eu, annadrupka.com plus two other host names have IP numbers in common with sys-tech.pl.

Name Servers

sys-tech.pl is served by two delegated name servers, ns1.seohost.pl and ns2.seohost.pl.

The name server configuration of sys-tech.pl is shared with other domains, for instance mx1.przeprowadzki.olsztyn.pl, pojezierze.net, wiis.pl and two others.

sys-tech.pl at least partially shares name servers with other domains, including sklepcocotier.pl, electroniccigarettetavern.com, hotel-europeenne.com and prestol.pl.

Each of the two host names carries two IP addresses: ns1.seohost.pl points to 185.200.47.250 and 188.210.221.52, and ns2.seohost.pl points to 188.210.221.179 and 188.210.223.253.

Mail Servers

sys-tech.pl uses one mail server — mail.sys-tech.pl.

There is one IP number for mail.sys-tech.pl: 91.236.131.78.