`system.edu.pl`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:8f0c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:4f5b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.91^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.143.12^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cass.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a51^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c051^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cass.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2051^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cass.ns.cloudflare.com`
		A	108.162.192.81^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	172.64.32.81^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
		A	173.245.58.81^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cass.ns.cloudflare.com`
NS	`venkat.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cfe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fe^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`venkat.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fe^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`venkat.ns.cloudflare.com`
		A	108.162.195.254^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	162.159.44.254^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	172.64.35.254^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.79.91, 172.67.143.12
		IPv6	2606:4700:3030::ac43:8f0c, 2606:4700:3034::6815:4f5b
SOA	`cass.ns.cloudflare.com`dns@cloudflare.com serial=2399131575

`edu.pl`

	DNSSEC	⚠️ Not signed
	NS	`a-dns.pl` ⭐ ⚠️ Not in parent delegation
	NS	`b-dns.pl` ⚠️ Not in parent delegation
	NS	`d-dns.pl` ⚠️ Not in parent delegation
	NS	`f-dns.pl` ⚠️ Not in parent delegation
	NS	`h-dns.pl` ⚠️ Not in parent delegation
	NS	`j-dns.pl` ⚠️ Not in parent delegation
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1774164666

rank #102698 globally
rank #631 in the tld
📈 Tranco rank: #386,099
rank #411752 globally
rank #2924 in the tld
WOT: SAFE (79/100)

Same first word

system.ch

system.com.sg

system.lt

system.media

system.lu

system.co

system.pt

system.pe.kr

system.direct

system.info

system.cz

system.me

system.management

system.bet

system.surf

system.co.zw

system.co.jp

system.my.id

system.com.ru

system.com.eg

system.fitness

system.eu

system.bg

system.de

system.uk.com

system.nu

system.com.es

system.se

system.ooo

system.band

system.dp.ua

system.parts

system.group

system.ne.jp

system.tools

system.clothing

system.it

system.ee

system.ddnss.de

system.net.au

system.agency

system.dk

system.energy

system.ag

system.archi

system.expert

system.co.il

system.eu.com

system.sg

system.pl

system.su

system.tw

system.vc

system.org

system.gr

system.cl

system.zip

system.edu.pl

system.services

system.at

system.ba

system.info.pl

system.com

system.com.ua

system.vision

system.properties

system.la

system.hu

system.cm

system.exchange

system.ro

system.jp

system.co.uk

system.io

system.partners

system.app

system.com.lk

system.ua

system.biz

system.supplies

system.solar

system.net.ru

system.uy

system.in.ua

system.dev

system.tips

system.lv

system.net

system.ae

system.im

system.world

system.domains

system.web.id

system.guide

system.com.tr

system.tv

system.com.pa

system.ist

system.bz

system.wine

system.taxi

system.org.pl

system.blue

system.repair

system.zone

Similar names

metsys.se

tmesys.info

emsyst.de

sytsem.com

mystes.org

metsys.it

stemys.ch

sysmet.co.jp

emsyst.net

sysmet.jp

sysmet.com

mestys.cz

emsyst.at

emsyst.sk

temsys.de

sysmet.ru

tmesys.com

metyss.com

emsyst.ch

yessmt.com

metsys.eu

tmesys.net

stemys.com

metsys.org

esystm.com

sysmet.it

metsys.hu

DNS History

11 records (6 active, 5 former)

○NSaudrey.ns.cloudflare.com2026-03-13 → 2026-03-13 · 3 obs

● 2026-03-13 13:26:46
○ 2026-03-17 15:59:24
○ 2026-03-22 16:32:26

●NScass.ns.cloudflare.com2026-03-17 → 2026-03-22 · 3 obs

○ 2026-03-13 13:26:46
● 2026-03-17 15:59:24
● 2026-03-22 16:32:26

○NSgerald.ns.cloudflare.com2026-03-13 → 2026-03-13 · 3 obs

● 2026-03-13 13:26:46
○ 2026-03-17 15:59:24
○ 2026-03-22 16:32:26

○NSjonah.ns.cloudflare.com2026-03-13 → 2026-03-13 · 3 obs

● 2026-03-13 13:26:46
○ 2026-03-17 15:59:24
○ 2026-03-22 16:32:26

○NSrayne.ns.cloudflare.com2026-03-13 → 2026-03-13 · 3 obs

● 2026-03-13 13:26:46
○ 2026-03-17 15:59:24
○ 2026-03-22 16:32:26

●NSvenkat.ns.cloudflare.com2026-03-17 → 2026-03-22 · 3 obs

○ 2026-03-13 13:26:46
● 2026-03-17 15:59:24
● 2026-03-22 16:32:26

●A104.21.79.912026-03-13 → 2026-03-22 · 2 obs

● 2026-03-13 13:26:46
● 2026-03-22 16:32:26

●A172.67.143.122026-03-13 → 2026-03-22 · 2 obs

● 2026-03-13 13:26:46
● 2026-03-22 16:32:26

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-20 → 2026-03-20 · 3 obs

○ 2026-03-17 15:59:24
● 2026-03-20 21:13:50
○ 2026-03-22 16:32:26

●A2606:4700:3030::ac43:8f0c2026-03-13 → 2026-03-22 · 4 obs

● 2026-03-13 13:26:46
● 2026-03-17 15:59:24
○ 2026-03-20 21:13:50
● 2026-03-22 16:32:26

●A2606:4700:3034::6815:4f5b2026-03-13 → 2026-03-22 · 4 obs

● 2026-03-13 13:26:46
● 2026-03-17 15:59:24
○ 2026-03-20 21:13:50
● 2026-03-22 16:32:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	h-dns.pl, b-dns.pl, d-dns.pl, a-dns.pl...	-
system.edu.pl	cass.ns.cloudflare.com, venkat.ns.cloudflare.com	-

✅ Authoritative Response

Server: 172.64.35.254

NS records: cass.ns.cloudflare.com, venkat.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for system.edu.pl (unsigned zone)

⏱️ Timing

Total: 689ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.143.12, 104.21.79.91`
AAAA	2	`2606:4700:3034::6815:4f5b, 2606:4700:3030::ac43:8f0c`
NS	2	`cass.ns.cloudflare.com, venkat.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cass.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

system.edu.pl maps to four IP numbers: 2606:4700:3030::ac43:8f0c, 2606:4700:3034::6815:4f5b, 104.21.79.91 and 172.67.143.12.

Other host names such as i-you.org, jobs-in-rail.com, obddeal.com, www.zgoldth.com and mail.foramedica.net share IPs with system.edu.pl.

Name Servers

Two name servers cass.ns.cloudflare.com and venkat.ns.cloudflare.com handle the delegation for system.edu.pl.

system.edu.pl shares the same name server setup as other domains, for example casinoarenaonlinemirrorhub.co.uk, slotsupdatesdaily.co.uk, slotsreviewdigestdaily.co.uk, luckhubsite.co.uk and realmflow.co.uk.

system.edu.pl at least partially shares name servers with other domains, for example pafsilipon.com, hkforsavings.org, psauto.md, gukuks.com and hostflood.com.

These name servers are often used together with nitin.ns.cloudflare.com and jade.ns.cloudflare.com.

Host names with six IP numbers:

cass.ns.cloudflare.com points to 2606:4700:50::adf5:3a51, 2803:f800:50::6ca2:c051, 2a06:98c1:50::ac40:2051, 108.162.192.81, 172.64.32.81 and 173.245.58.81.

venkat.ns.cloudflare.com points to 2606:4700:58::a29f:2cfe, 2803:f800:50::6ca2:c3fe, 2a06:98c1:50::ac40:23fe, 108.162.195.254, 162.159.44.254 and 172.64.35.254.

system.edu.pl - robtex.com

system.edu.pl

edu.pl

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`system.edu.pl`

`edu.pl`