`core.io`

DNSSEC	⚠️ Not signed
A	2a01:138:a015:babe:0:ffff:50be:83b2^{🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH}
		PTR	`this.srv.customer.skylime.net`
A	80.190.131.178^{🇩🇪 IPX-AS1559880.190.128.0/21 NorthC Deutschland GmbH}
NS	`ns.core.io` ⭐
		A	2a01:138:a015:babe:5054:ff:fef6:f498^{🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH}
			PTR	`ns.core.io`
		A	80.190.131.145^{🇩🇪 IPX-AS1559880.190.128.0/21 NorthC Deutschland GmbH}
NS	`ns.coreio.de`
		A	2a01:138:a015:babe:5054:ff:fe61:4939^{🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH}
			PTR	`ns.coreio.de`
		A	80.190.131.254^{🇩🇪 IPX-AS1559880.190.128.0/21 NorthC Deutschland GmbH}
NS	`ns.coreio.nl` ⚠️ Not in parent delegation
		A	2a01:4f8:252:f601:0:ffff:88f3:7757^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns.coreio.nl`
		A	136.243.119.87^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
			PTR	`ns.coreio.nl`
MX	`mx.mail.core.io` ⭐
		A	2a01:138:a015:babe:0:ffff:50be:83c9^{🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH}
			PTR	`mx.mail.core.io`
		A	80.190.131.201^{🇩🇪 IPX-AS1559880.190.128.0/21 NorthC Deutschland GmbH}
MX	`mx.mail.coreio.de`⁽²⁰⁾
		A	2a01:138:a015:babe:0:ffff:50be:8392^{🇩🇪 IPX-AS155982a01:138::/32 IP Exchange GmbH}
			PTR	`mx.mail.coreio.de`
		A	80.190.131.147^{🇩🇪 IPX-AS1559880.190.128.0/21 NorthC Deutschland GmbH}
TXT	`google-site-verification=uVxysJS2K_c8h1S5e7Ib6hwmlxV6OgXC-oVscec0NN0`
TXT	`v=spf1 mx a:smtp.reco.io a:mail.reco-systems.de a:snowball1.srv.skylime.net -all`
SOA	`ns.core.io`hostmaster@core.io serial=1756461301

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1778335103

📈 Tranco rank: #435,617

Subdomains

six.core.io

mail.core.io

imap.core.io

www.core.io

db.core.io

net.core.io

ns.core.io

Same first word

core.md

core.edu

core.se

core.org.ua

core.life

core.energy

core.nl

core.cx

core.dating

core.farm

core.ps

core.ac.uk

core.bet

core.fail

core.exposed

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.cw

core.cloud

core.co

core.co.in

core.com.mx

core.tips

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.gs

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.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.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.nic.in

Similar names

ecor.com.co

creo.dev

eorc.com

ecro.cn

ecor.sakura.ne.jp

reoc.com

core.gen.tr

core.org.pt

core.com.sg

creo.eu

core.city

creo.zone

orec.de

cero.be

ecor.eu

core.sk

reco.promo

reco.mobi

reco.shop

creo.mobi

coer.org.nz

ceor.ru

core.at

erco.com

creo.cn

erco.com.cn

core.coop

ocre.co.uk

core.moe

ceor.com

ceor.org

ceor.pe

reco.jp.net

ocre.com.au

core.co.th

creo.mx

reco.co.tz

reco.rentals

reco.co.uk

reco.org

core.org.cn

core.org.br

core.us-west-2.elasticbeanstalk.com

core.me

reco.io

core.su

rcoe.com

cero.cn

creo.si

core.co.nz

eocr.sh.cn

cero.technology

coer.ru

orec.co.jp

creo.com.mx

reco.hu

ecro.ru

ecor.online

core.ba

core.ro

eorc.ir

core.sa

ecor.com.au

creo.uz

core.co.uk

core.icu

ocre.cn

creo.es

ecor.co

core.li

core.blue

reco.ir

core.co.jp

coer.cz

ocre.mx

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

creo.se

ceor.bplaced.net

orec.ca

erco.us

DNS History

9 records (7 active, 2 former)

●NSns.core.io2015-08-07 → 2026-05-09 · 2 obs

● 2015-08-07 10:58:30
● 2026-05-09 14:20:36

●NSns.coreio.de2015-08-07 → 2026-05-09 · 2 obs

● 2015-08-07 10:58:30
● 2026-05-09 14:20:36

●NSns.coreio.nl2015-08-07 → 2026-05-09 · 2 obs

● 2015-08-07 10:58:30
● 2026-05-09 14:20:36

●MXmx.mail.core.io2015-08-07 → 2026-05-09 · 2 obs

● 2015-08-07 10:58:30
● 2026-05-09 14:20:36

●MXmx.mail.coreio.de2015-08-07 → 2026-05-09 · 2 obs

● 2015-08-07 10:58:30
● 2026-05-09 14:20:36

●A2a01:138:a015:babe:0:ffff:50be:83b22017-06-02 → 2026-05-09 · 3 obs

○ 2017-03-17 04:51:20
● 2017-06-02 15:31:22
● 2026-05-09 14:20:36

○A2a01:138:a015:babe:4::5012015-08-07 → 2017-03-17 · 4 obs

● 2015-08-07 10:58:30
● 2017-03-17 04:51:20
○ 2017-06-02 15:31:22
○ 2026-05-09 14:20:36

○A80.190.131.1512015-08-07 → 2017-03-17 · 4 obs

● 2015-08-07 10:58:30
● 2017-03-17 04:51:20
○ 2017-06-02 15:31:22
○ 2026-05-09 14:20:36

●A80.190.131.1782017-06-02 → 2026-05-09 · 3 obs

○ 2017-03-17 04:51:20
● 2017-06-02 15:31:22
● 2026-05-09 14:20:36

🔍 DNS Trace

Analysis

Hierarchy

The parent of six.core.io, mail.core.io, imap.core.io, www.core.io, db.core.io and a few other host names is core.io.

IP Addresses

core.io resolves to two IP numbers: 2a01:138:a015:babe:0:ffff:50be:83b2 and 80.190.131.178.

Other host names, for instance skylime.at, reco.io, skylime.ch, www.skylime.net and skylime.eu share IP numbers with core.io.

Name Servers

core.io delegates to three name servers: ns.coreio.de, ns.core.io and ns.coreio.nl.

core.io shares some name servers with other domains, for example py10.org, tuum.de, amrein.sh, samaritan.at and cyber-tec.org.

Host names with two IP numbers:

ns.coreio.de: 2a01:138:a015:babe:5054:ff:fe61:4939 and 80.190.131.254

ns.core.io: 2a01:138:a015:babe:5054:ff:fef6:f498 and 80.190.131.145

ns.coreio.nl: 2a01:4f8:252:f601:0:ffff:88f3:7757 and 136.243.119.87

Mail Servers

core.io is served by two mail servers: mx.mail.coreio.de and mx.mail.core.io.

core.io shares the mail server setup with other domains, for example idshots.de, zen0.de, diefitnesslounge.at, idbier.de and simpleinvest.at.

core.io shares some mail servers with other domains at least partially, for instance cyber-tec.org and gasthaus-adler.eu.

Host names with two IP numbers:

mx.mail.coreio.de points to: 2a01:138:a015:babe:0:ffff:50be:8392 and 80.190.131.147; mx.mail.core.io points to: 2a01:138:a015:babe:0:ffff:50be:83c9 and 80.190.131.201.

core.io - robtex.com

core.io

io

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`core.io`

`io`