`core.tech`

DNSSEC	⚠️ Not signed
A	2606:4700:3108::ac42:288e^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700:3108::ac42:2b72^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US}
A	172.66.40.142^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US}
A	172.66.43.114^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US}
NS	`nicole.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nicole.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nicole.ns.cloudflare.com`
		A	108.162.192.211^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	172.64.32.211^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	173.245.58.211^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
NS	`rajeev.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rajeev.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rajeev.ns.cloudflare.com`
		A	108.162.193.224^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	172.64.33.224^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	173.245.59.224^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com`⁽²⁰⁾
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`BlmvYpo+GuvBqepl9atTZpzuEzewpT/CJub1HCsGawDgRd/libD9YN7Acr9o0Okr8Dv/6sdAr/Gu6...`
TXT	`docusign=608f1df6-def3-423d-8351-d3bfa87ad5c5`
TXT	`google-site-verification=EeAO_NVvev9lH590svzjVLoVIJUKLVZ8N0H8agmsE7A`
TXT	`knowbe4-site-verification=bd79d8614a128138e2611ec57349d9ee`
TXT	`mgverify=c89f5ff7ac6f47c8392c689f11cef471baddd0e30fd381deb2134772fc492368`
TXT	`pardot827643=933828849b2d11b4c54bb66066fcbb1827d83f2e81c760bcc06b7430699cc2f1`
TXT	`sending_domain827643=e54a81e5a5c787f51b1a52f9b5063c2f8264c5823c6d66b6b387c632...`
TXT	`sophos-domain-verification=decc4beacb964ef36bf25cdf6a19efebbe406400884acbfece...`
TXT	`v=spf1 include:us._netblocks.mimecast.com include:_spf.salesforce.com include...`
SOA	`nicole.ns.cloudflare.com`dns@cloudflare.com serial=2405900505

`tech`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1780622949

Same first word

core.co.nz

core.ba

core.ro

core.sa

core.kim

core.co.uk

core.icu

core.li

core.blue

core.co.jp

core.tf

core.dns-cloud.net

core.cards

core.bot

core.cloudapp.net

core.s3.amazonaws.com

core.limited

core.sh

core.info

core.dev

core.wiki

core.windows

core.ai

core.coach

core.camera

core.co.za

core.ca

core.vn

core.it

core.cz

core.com.hk

core.kz

core.com

core.tv

core.dental

core.repair

core.pk

core.education

core.mx

core.gr

core.md

core.edu

core.se

core.org.ua

core.builders

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.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.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

Similar names

erco.com

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

eocr.sh.cn

cero.technology

coer.ru

orec.co.jp

creo.com.mx

reco.hu

ecro.ru

ecor.online

erco.mx

eorc.ir

ecor.com.au

creo.uz

ocre.cn

creo.es

ecor.co

reco.ir

coer.cz

ocre.mx

creo.com.pl

ecor.org

oerc.org.uk

creo.hu

oecr.de

erco.eu

creo.dk

reco.nl

reco.it

ecro.ca

cero.capital

oerc.com

ecor.fr

roec.cn

creo.se

ceor.bplaced.net

orec.ca

erco.us

orce.de

cero.bio

creo.archi

creo.fi

reco.co.at

cero.com.pl

creo.rzeszow.pl

ecor.jp

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

DNS History

8 records (8 active, 0 former)

●NSnicole.ns.cloudflare.com2026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●NSrajeev.ns.cloudflare.com2026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●MXus-smtp-inbound-1.mimecast.com2026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●MXus-smtp-inbound-2.mimecast.com2026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●A172.66.40.1422026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●A172.66.43.1142026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●A2606:4700:3108::ac42:288e2026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

●A2606:4700:3108::ac42:2b722026-02-14 → 2026-06-05 · 2 obs

● 2026-02-14 16:07:16
● 2026-06-05 01:31:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info	-
core.tech	rajeev.ns.cloudflare.com, nicole.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.224

NS records: rajeev.ns.cloudflare.com, nicole.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core.tech (unsigned zone)

⏱️ Timing

Total: 1186ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.40.142, 172.66.43.114`
AAAA	2	`2606:4700:3108::ac42:288e, 2606:4700:3108::ac42:2b72`
NS	2	`nicole.ns.cloudflare.com, rajeev.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 20)`
TXT	9	`BlmvYpo+GuvBqepl9atTZpzuEzewpT/CJub1HCsG, docusign=608f1df6-def3-423d-8351-d3bfa87...`
SOA	1	`nicole.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

core.tech resolves to 4 IP numbers: 172.66.40.142, 172.66.43.114, 2606:4700:3108::ac42:288e and 2606:4700:3108::ac42:2b72.

Additional host names — www.perfectketo.com, sso.hubits.io, montrose.is and two others — share IP numbers with core.tech.

Name Servers

core.tech is served by two delegated name servers, nicole.ns.cloudflare.com and rajeev.ns.cloudflare.com.

core.tech shares its name server setup with other domains, including ipvpbar.com, ytjjmarket.com, soundshore.net and two others.

core.tech shares at least some of its name servers with other domains, including inrooms.ru, orbitreelsdesk.nl, zetaportal.ru and two others.

These name servers are frequently paired with the name servers sreeni.ns.cloudflare.com, peyton.ns.cloudflare.com and cory.ns.cloudflare.com.

Host names with 6 IP numbers:

nicole.ns.cloudflare.com points to 108.162.192.211, 172.64.32.211, 173.245.58.211 and three other IP addresses.

rajeev.ns.cloudflare.com points to 108.162.193.224, 172.64.33.224, 173.245.59.224 and three other IP addresses.

Mail Servers

core.tech has two mail servers: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

core.tech shares the same mail server setup as other domains, including comoso.com, codaagency.com, carc.info and two others.

core.tech has at least some mail servers in common with other domains, such as tankspecialists.com, spirol.com, mlglaw.com and trianglepump.com.

Host names with 6 IP numbers:

us-smtp-inbound-1.mimecast.com points to 170.10.128.141, 170.10.128.221, 170.10.128.242 and three other IP addresses.

us-smtp-inbound-2.mimecast.com points to 170.10.128.141, 170.10.128.221, 170.10.128.242 and three other IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.242 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.242 IP addresses.

core.tech - robtex.com

core.tech

tech

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`core.tech`

`tech`