core.app - robtex.com

core.app

DNSSEC⚠️ Not signed
A2a06:98c1:3103::6812:2338🇺🇸 Cloudflare2a06:98c1:3103::/48 ✓ In HTTPS hints
A2a06:98c1:3105::ac40:98c8🇺🇸 Cloudflare2a06:98c1:3105::/48 ✓ In HTTPS hints
A104.18.35.56Cloudflare104.18.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.64.152.200🇺🇸 Cloudflare172.64.152.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnile.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bd6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A2803:f800:50::6ca2:c1d6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnile.ns.cloudflare.com
A2a06:98c1:50::ac40:21d6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnile.ns.cloudflare.com
A108.162.193.214🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A172.64.33.214🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A173.245.59.214🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
NSrihana.ns.cloudflare.com
A2606:4700:50::adf5:3af4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrihana.ns.cloudflare.com
A2803:f800:50::6ca2:c0f4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrihana.ns.cloudflare.com
A2a06:98c1:50::ac40:20f4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrihana.ns.cloudflare.com
A108.162.192.244🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrihana.ns.cloudflare.com
A172.64.32.244🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrihana.ns.cloudflare.com
A173.245.58.244🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrihana.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c06::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbg-in-f26.1e100.net
A142.251.16.27🇺🇸 Google142.251.16.0/24
PTRbl-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.27🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.26🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.26🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f26.1e100.net
TXTgoogle-site-verification=e9w4KKnaK_UNuzA_afguX6hgfV_cOc9LQ62CdeJuYyU
TXTv=spf1 include:_spf.google.com include:7522520.spf04.hubspotemail.net ~all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.35.56, 172.64.152.200
IPv6 hints2a06:98c1:3103::6812:2338, 2a06:98c1:3105::ac40:98c8
SOAnile.ns.cloudflare.comdns@cloudflare.com serial=2399900582

app

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427
rank #94909 globally
rank #91 in the tld
this domain is a registered domain name that could be used for an app-related product, service, or brand called Core. Its actual content depends on the registrar, owner, and DNS configuration.📈 Tranco rank: #254,896
🔒 HSTS Preload (+subdomains)

Same first word

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.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.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.pw
core.xii.jp
core.gallery
core.io
core.fi

Similar names

reco.on.ca
erco.org
erco.de
reoc.us
creo.be
roec.com
ecro.edu.mx
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
erco.se
ocre.de
eocr.com
creo.com.tr
reco.info
ecor.net
creo.ch
oerc.at
reco.ma
oecr.net
reco.sk
ecro.net
cero.gr.jp
rcoe.ru
ecor.ch
coer.net
erco.pl
reco.fi
reco.pl
erco.cz
reco.com.mx
creo.co
roce.it
orce.ie
creo.host
coer.de
orce.nl
ecro.de
reco.tw
erco.si
cero.bike
coer.nl
rcoe.info
rcoe.tv
reco.co.za
erco.cn
croe.ru
roce.org
creo.net
reoc.org
erco.co.kr
creo.kr
reco.pt
ocre.be
ocre.net
cero.nu
reco.email
creo.ru
ocre.com.cn
ecor.io
reco.us
reco.me
reco.com
ceor.net
reco.co.nz
creo.com.na
roce.com.mx
eroc.cz
erco.com.qa
rcoe.us
cero.ca
cero.software
ocre.info
coer.eu
erco.co.uk
erco.com.br
orec.nl
ecor.ca
creo.biz
erco.ovh
creo.chat
eocr.eu
creo.com
ocre.org
cero.de
roce.co.jp
creo.us
reco.cn

DNS History

15 records (11 active, 4 former)

202120222023202420252026NSnile.ns.cloudflare.comrihana.ns.cloudflare.comns1.sedoparking.comns2.sedoparking.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commail.pickelhost.comA104.18.35.56172.64.152.2002a06:98c1:3103::6812:23382a06:98c1:3105::ac40:98c891.195.240.126
●NSnile.ns.cloudflare.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
○NSns1.sedoparking.com2020-04-10 → 2020-04-10 · 3 obs
● 2020-04-10 09:33:30
○ 2026-02-16 00:50:48
○ 2026-04-11 18:41:58
○NSns2.sedoparking.com2020-04-10 → 2020-04-10 · 3 obs
● 2020-04-10 09:33:30
○ 2026-02-16 00:50:48
○ 2026-04-11 18:41:58
●NSrihana.ns.cloudflare.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●MXalt1.aspmx.l.google.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●MXalt2.aspmx.l.google.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●MXalt3.aspmx.l.google.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●MXalt4.aspmx.l.google.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●MXaspmx.l.google.com2026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
○MXmail.pickelhost.com2020-04-10 → 2020-04-10 · 3 obs
● 2020-04-10 09:33:30
○ 2026-02-16 00:50:48
○ 2026-04-11 18:41:58
●A104.18.35.562026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●A172.64.152.2002026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●A2a06:98c1:3103::6812:23382026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
●A2a06:98c1:3105::ac40:98c82026-02-16 → 2026-04-11 · 3 obs
○ 2020-04-10 09:33:30
● 2026-02-16 00:50:48
● 2026-04-11 18:41:58
○A91.195.240.1262020-04-10 → 2020-04-10 · 3 obs
● 2020-04-10 09:33:30
○ 2026-02-16 00:50:48
○ 2026-04-11 18:41:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
core.appnile.ns.cloudflare.com, rihana.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.214

NS records: nile.ns.cloudflare.com, rihana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core.app (unsigned zone)

⏱️ Timing

Total: 679ms | Queries: -

📄 Records

TypeCountSample Data
A2172.64.152.200, 104.18.35.56
AAAA22a06:98c1:3105::ac40:98c8, 2a06:98c1:3103::6812:2338
NS2nile.ns.cloudflare.com, rihana.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=e9w4KKnaK_UNuzA, v=spf1 include:_spf.google.com include:7
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1nile.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

core.app maps to four IP numbers: 2a06:98c1:3103::6812:2338, 2a06:98c1:3105::ac40:98c8, 104.18.35.56 and 172.64.152.200.

Other host names, for instance 07140.eps-ncr-40.com, eucrisahcp.com, objectifpreventionsante.fr, 01144.eps-ncr-40.com and www.theappletreegerrardscross.co.uk share IP numbers with core.app.

Name Servers

Two name servers nile.ns.cloudflare.com and rihana.ns.cloudflare.com are delegated to core.app.

core.app uses the same name server configuration as other domains, such as imq.com.ua, jimpans3.de, buddhalightshop.com, geminis-pro.com and aeb.xyz.

core.app at least partially shares name servers with other domains such as asia200.rest, farsihubz.com, partnersproalpha.sbs, hakbeveiliging.nl and damo.net.nz.

These name servers are commonly used alongside sue.ns.cloudflare.com, sasha.ns.cloudflare.com and elias.ns.cloudflare.com.

Host names with six IP numbers: Host name nile.ns.cloudflare.com points to 2606:4700:58::adf5:3bd6, 2803:f800:50::6ca2:c1d6, 2a06:98c1:50::ac40:21d6, 108.162.193.214, 172.64.33.214 and 173.245.59.214; host name rihana.ns.cloudflare.com points to 2606:4700:50::adf5:3af4, 2803:f800:50::6ca2:c0f4, 2a06:98c1:50::ac40:20f4, 108.162.192.244, 172.64.32.244 and 173.245.58.244.

Mail Servers

core.app is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

core.app shares mail servers with other domains at least in part, for instance ns500698.ns500759.ns500759.ns500698.ns500735.ns500698.ns500736.ns500708.ns500576.ns500686.ns500698.ns500619.ns500619.trackreceptor.com, ns500734.ns500734.ns500699.ns500699.ns500693.ns500588.ns500683.ns500693.ns500612.ns500612.ns500632.ns500588.ns500578.ns500110.dtrkdll.com, ns500731.ns500731.ns500671.ns500754.ns500671.ns500705.ns500705.ns500705.ns500704.ns500678.ns500678.ns500678.lusty(0x736c7574)z.com, ns500742.ns500754.ns500742.ns500671.ns500731.ns500688.ns500704.ns500671.ns500705.ns500671.ns500688.ns500649.ns500678.ns500666.ns500653.ns500153.tenderladiesbz.com and eliasjr.hu.

These mail servers are commonly used alongside aspmx2.googlemail.com, aspmx3.googlemail.com, mxa.mailgun.org, mxb.mailgun.org, aspmx4.googlemail.com and aspmx5.googlemail.com.

Two IPs per host name:

aspmx.l.google.com points to: 2607:f8b0:4004:c06::1a and 142.251.16.27

alt1.aspmx.l.google.com points to: 2607:f8b0:4023:2801::1b and 192.178.128.26

alt2.aspmx.l.google.com points to: 2607:f8b0:4023:1015::1b and 172.253.135.27

alt3.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1b and 172.253.145.26

alt4.aspmx.l.google.com points to: 2607:f8b0:4003:c4a::1b and 142.251.96.26

Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)