`core.edu.pl`

DNSSEC	⚠️ Not signed
NS	`keenan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c0b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keenan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c30b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keenan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:230b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keenan.ns.cloudflare.com`
		A	108.162.195.11^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keenan.ns.cloudflare.com`
		A	162.159.44.11^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keenan.ns.cloudflare.com`
		A	172.64.35.11^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keenan.ns.cloudflare.com`
NS	`naya.ns.cloudflare.com`
		A	2606:4700:50::a29f:26f2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naya.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`naya.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`naya.ns.cloudflare.com`
		A	108.162.194.242^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naya.ns.cloudflare.com`
		A	162.159.38.242^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naya.ns.cloudflare.com`
		A	172.64.34.242^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naya.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽¹⁵⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽¹⁸⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
SOA	`keenan.ns.cloudflare.com`dns@cloudflare.com serial=2407055924

`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=1781591451

rank #215767 globally
rank #1453 in the tld
WOT: SAFE (79/100)

Subdomains

github.core.edu.pl

Same first word

core.healthcare

core.pl

core.or.kr

core.com.tr

core.ru

core.hu

core.fund

core.ws

core.mba

core.in

core.network

core.la

core.edu.pl

core.cw

core.cloud

core.co

core.co.in

core.com.mx

core.pm

core.ec

core.golf

core.us

core.equipment

core.uk.com

core.edu.au

core.technology

core.redirectme.net

core.net

core.bz

core.my

core.host

core.fm

core.ch

core.tech

core.red

core.engineering

core.hosting

core.com.ph

core.im

core.kids

core.ee

core.photos

core.de

core.com.ec

core.bg

core.app

core.be

core.ie

core.com.pl

core.today

core.chat

core.ac

core.care

core.net.id

core.ms

core.direct

core.pp.ua

core.ac.jp

core.guru

core.world

core.love

core.capital

core.org

core.dk

core.by

core.pt

core.is

core.supplies

core.vote

core.pw

core.xii.jp

core.gallery

core.io

core.fi

core.eu

core.co.at

core.vc

core.ly

core.academy

core.lv

core.business

core.tg

core.com.ua

core.toys

core.microsoft

core.insure

core.nic.in

core.gen.tr

core.org.pt

core.com.sg

core.city

core.sk

core.at

core.coop

core.moe

core.co.th

core.org.cn

core.org.br

core.us-west-2.elasticbeanstalk.com

core.me

Similar names

creo.com.mx

reco.hu

ecro.ru

ecor.online

core.ba

eroc.co.uk

core.ro

erco.mx

eorc.ir

core.sa

ecor.com.au

creo.uz

core.kim

core.co.uk

core.icu

ocre.cn

creo.es

ecor.co

core.li

core.blue

reco.ir

core.co.jp

coer.cz

ocre.mx

creo.com.pl

ecor.org

core.tf

oerc.org.uk

creo.hu

core.dns-cloud.net

oecr.de

erco.eu

creo.dk

reco.nl

core.cards

core.bot

core.cloudapp.net

reco.it

ecro.ca

cero.capital

oerc.com

ecor.fr

core.s3.amazonaws.com

roec.cn

core.clothing

creo.se

ceor.bplaced.net

orec.ca

erco.us

orce.de

cero.bio

core.limited

creo.archi

creo.fi

reco.co.at

cero.com.pl

creo.rzeszow.pl

ecor.jp

core.sh

roce.com

reco.de

oecr.nl

ecor.com

erco.es

erco.ro

ocre.social

oecr.at

rcoe.de

eorc.us

reco.ro

erco.com.mx

core.info

cero.cz

reco.net.vn

cero.world

reco.on.ca

core.physio

core.fr

erco.org

erco.de

reoc.us

core.dev

creo.be

core.wiki

roec.com

ecro.edu.mx

core.windows

erco.be

ecor.cz

reco.mi.it

creo.pro

ocer.net

reco.guru

oerc.net

reco.co.th

ecro.fr

eocr.cn

cero.it

reco.be

core.ai

DNS History

5 records (5 active, 0 former)

●NSkeenan.ns.cloudflare.com2026-06-16 → 2026-06-16 · 2 obs

● 2026-06-16 03:01:32
● 2026-06-16 23:04:18

●NSnaya.ns.cloudflare.com2026-06-16 → 2026-06-16 · 2 obs

● 2026-06-16 03:01:32
● 2026-06-16 23:04:18

●MXroute1.mx.cloudflare.net2026-06-16 → 2026-06-16 · 2 obs

● 2026-06-16 03:01:32
● 2026-06-16 23:04:18

●MXroute2.mx.cloudflare.net2026-06-16 → 2026-06-16 · 2 obs

● 2026-06-16 03:01:32
● 2026-06-16 23:04:18

●MXroute3.mx.cloudflare.net2026-06-16 → 2026-06-16 · 2 obs

● 2026-06-16 03:01:32
● 2026-06-16 23:04:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...	-
core.edu.pl	keenan.ns.cloudflare.com, naya.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.11

NS records: keenan.ns.cloudflare.com, naya.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 629ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`keenan.ns.cloudflare.com, naya.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 15), route2.mx.cloudflare.net (pri: 18)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
SOA	1	`keenan.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

core.edu.pl is a parent domain of github.core.edu.pl.

Name Servers

core.edu.pl has two authoritative name servers — keenan.ns.cloudflare.com and naya.ns.cloudflare.com.

core.edu.pl has the same name server delegation as a number of other domains, such as monden.info, listenarabic.com, bluegape.com and two more.

core.edu.pl shares at least some of its name servers with other domains, including philproplumbing.co, enududo.top, bossrove.com and two others.

These name servers are frequently seen alongside the name servers abby.ns.cloudflare.com, ashton.ns.cloudflare.com, elle.ns.cloudflare.com and sunny.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

keenan.ns.cloudflare.com points to 108.162.195.11, 162.159.44.11, 172.64.35.11 and 3 other IP addresses.

naya.ns.cloudflare.com points to 108.162.194.242, 162.159.38.242, 172.64.34.242 and 3 other IP addresses.

Mail Servers

core.edu.pl is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

core.edu.pl shares at least some of its mail servers with other domains — for example steel-jo.com, spyfocusshop.com, carlotarochel.com and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net points to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net points to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net points to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

core.edu.pl - robtex.com

core.edu.pl

edu.pl

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

Name Servers

Mail Servers

`core.edu.pl`

`edu.pl`