ctb.com - dns.ninja

ctb.com

DNSSEC⚠️ Not signed
A192.243.90.150
NSns-1446.awsdns-52.org ⭐
A2600:9000:5305:a600::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1446.awsdns-52.org
A205.251.197.166🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1446.awsdns-52.org
NSns-2022.awsdns-60.co.uk
A2600:9000:5307:e600::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-2022.awsdns-60.co.uk
A205.251.199.230🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-2022.awsdns-60.co.uk
NSns-580.awsdns-08.net
A2600:9000:5302:4400::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-580.awsdns-08.net
A205.251.194.68🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-580.awsdns-08.net
NSns-73.awsdns-09.com
A2600:9000:5300:4900::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-73.awsdns-09.com
A205.251.192.73🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-73.awsdns-09.com
TXT_urrrqd9cavmfiliki25aybgdfsk4wuv
TXTgoogle-site-verification=FOrBu-8RkyTBFMExLr-6x5wGq52ZCpeQqtG33yGIX8A
SOAns-1446.awsdns-52.orgawsdns-hostmaster@amazon.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1783470191
WOT: SAFE (68/100)

Subdomains

mapreports.ctb.com
stagingreports.ctb.com
oas.ctb.com
idoeonlinereports.ctb.com
iknow.ctb.com
acsi.ctb.com
ftp.ctb.com
acuity.ctb.com
teacher-ncscpartners.ctb.com
tascreports.ctb.com
indiana.ctb.com
www5.ctb.com
programs.ctb.com
www.ctb.com
v1-testdelivery.ctb.com
experience-ga.ctb.com
inohelp.ctb.com
acuitywest.ctb.com
testadministration.ctb.com
bmsqa.ctb.com
www6.ctb.com
bms5ops.ctb.com
tascdemo.ctb.com
acuityeast.ctb.com
experience-ccra-in.ctb.com

Same first word

ctb.com.au
ctb.party
ctb.co.jp
ctb.ma
ctb.co.uk
ctb.co.at
ctb.fr
ctb.be
ctb.at
ctb.co.nz
ctb.dk
ctb.kiev.ua
ctb.es
ctb.ru
ctb.com.pe
ctb.me
ctb.net.pl
ctb.by
ctb.jp
ctb.lv
ctb.ie
ctb.ac.jp
ctb.sk
ctb.no
ctb.go.th
ctb.sa
ctb.org.tr
ctb.hu
ctb.com.tw
ctb.cat
ctb.ir
ctb.ne.jp
ctb.ca
ctb.com.ph
ctb.nu
ctb.eus
ctb.md
ctb.org.br
ctb.pt
ctb.academy
ctb.edu.gt
ctb.us
ctb.school
ctb.net.au
ctb.com.cn
ctb.info
ctb.co
ctb.cn
ctb.nl
ctb.edu.co
ctb.org.tw
ctb.ro
ctb.com

Similar names

tbc.co.kr
btc.com.vn
cbt.nyc
tbc.net
btc.tienda
btc.com
btc.bet
bct.it
btc.sx
tcb.top
btc.net.pk
tbc.net.tw
bct.ca
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cbt.cn
bct.com.au
btc.co.id
btc.gold
tcb.tempurl.host
btc.capital
btc.com.pa
btc.guide
btc.co
btc.es
cbt.se
cbt.ie
cbt.aero
btc.bm
btc.lighting
cbt.net.pl
bct.com.ua
bct.ru
bct.be
tcb.eu
btc.ren
tcb.gr
btc.com.jo
btc.ng
btc.com.py
bct.lt
btc.com.hk
btc.com.tw
tcb.ru
btc.edu
tbc.sc
tbc.md
tcb.at
bct.vn
btc.name
btc.center
tcb.today
bct.kz
btc.kz
tcb.net.au
bct.at
cbt.net.cn
btc.london
tbc.us
tcb.red
tbc.agency
btc.nu
bct.bt
tcb.beer
bct.email
tbc.mx
cbt.info
bct.us
tbc.at
tbc.com.vn
bct.cologne
bct.or.th
tbc.ge
tbc.com.ge
bct.com.co
cbt.bet
btc.com.ph
btc.lv
tbc.ae
tbc.coffee
cbt.ca
tbc.partners

DNS History

15 records (5 active, 10 former)

20162017201820192020202120222023202420252026NSns-1446.awsdns-52.orgns-2022.awsdns-60.co.ukns-580.awsdns-08.netns-73.awsdns-09.compdns85.ultradns.bizpdns85.ultradns.compdns85.ultradns.netpdns85.ultradns.orgMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comctb-com.mail.protection.outlook.comA192.243.90.150
●NSns-1446.awsdns-52.org2016-07-16 → 2026-07-08 · 3 obs
○ 2016-07-04 14:14:38
● 2016-07-16 13:29:30
● 2026-07-08 00:33:48
●NSns-2022.awsdns-60.co.uk2016-07-16 → 2026-07-08 · 3 obs
○ 2016-07-04 14:14:38
● 2016-07-16 13:29:30
● 2026-07-08 00:33:48
●NSns-580.awsdns-08.net2016-07-16 → 2026-07-08 · 3 obs
○ 2016-07-04 14:14:38
● 2016-07-16 13:29:30
● 2026-07-08 00:33:48
●NSns-73.awsdns-09.com2016-07-16 → 2026-07-08 · 3 obs
○ 2016-07-04 14:14:38
● 2016-07-16 13:29:30
● 2026-07-08 00:33:48
○NSpdns85.ultradns.biz2015-09-02 → 2016-07-04 · 4 obs
● 2015-09-02 16:35:14
● 2016-07-04 14:14:38
○ 2016-07-16 13:29:30
○ 2026-07-08 00:33:48
○NSpdns85.ultradns.com2015-09-02 → 2016-07-04 · 4 obs
● 2015-09-02 16:35:14
● 2016-07-04 14:14:38
○ 2016-07-16 13:29:30
○ 2026-07-08 00:33:48
○NSpdns85.ultradns.net2015-09-02 → 2016-07-04 · 4 obs
● 2015-09-02 16:35:14
● 2016-07-04 14:14:38
○ 2016-07-16 13:29:30
○ 2026-07-08 00:33:48
○NSpdns85.ultradns.org2015-09-02 → 2016-07-04 · 4 obs
● 2015-09-02 16:35:14
● 2016-07-04 14:14:38
○ 2016-07-16 13:29:30
○ 2026-07-08 00:33:48
○MXalt1.aspmx.l.google.com2018-02-09 → 2026-02-16 · 5 obs
○ 2017-08-28 11:42:04
● 2018-02-09 10:24:58
● 2026-02-16 15:18:12
○ 2026-02-17 09:31:42
○ 2026-07-08 00:33:48
○MXalt2.aspmx.l.google.com2018-02-09 → 2026-02-16 · 5 obs
○ 2017-08-28 11:42:04
● 2018-02-09 10:24:58
● 2026-02-16 15:18:12
○ 2026-02-17 09:31:42
○ 2026-07-08 00:33:48
○MXaspmx.l.google.com2018-02-09 → 2026-02-16 · 5 obs
○ 2017-08-28 11:42:04
● 2018-02-09 10:24:58
● 2026-02-16 15:18:12
○ 2026-02-17 09:31:42
○ 2026-07-08 00:33:48
○MXaspmx2.googlemail.com2018-02-09 → 2026-02-16 · 5 obs
○ 2017-08-28 11:42:04
● 2018-02-09 10:24:58
● 2026-02-16 15:18:12
○ 2026-02-17 09:31:42
○ 2026-07-08 00:33:48
○MXaspmx3.googlemail.com2018-02-09 → 2026-02-16 · 5 obs
○ 2017-08-28 11:42:04
● 2018-02-09 10:24:58
● 2026-02-16 15:18:12
○ 2026-02-17 09:31:42
○ 2026-07-08 00:33:48
○MXctb-com.mail.protection.outlook.com2015-09-02 → 2017-08-28 · 4 obs
● 2015-09-02 16:35:14
● 2017-08-28 11:42:04
○ 2018-02-09 10:24:58
○ 2026-07-08 00:33:48
●A192.243.90.1502015-09-02 → 2026-07-08 · 2 obs
● 2015-09-02 16:35:14
● 2026-07-08 00:33:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...-
ctb.comns-73.awsdns-09.com, ns-580.awsdns-08.net, ns-2022.awsdns-60.co.uk, ns-1446.awsdns-52.org2 records

✅ Authoritative Response

Server:205.251.194.68

NS records: ns-73.awsdns-09.com, ns-580.awsdns-08.net, ns-2022.awsdns-60.co.uk, ns-1446.awsdns-52.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctb.com (unsigned zone)

⏱️ Timing

Total: 533ms | Queries: -

📄 Records

TypeCountSample Data
A1192.243.90.150
NS4ns-1446.awsdns-52.org, ns-2022.awsdns-60.co.uk...
TXT2_urrrqd9cavmfiliki25aybgdfsk4wuv, google-site-verification=FOrBu-8RkyTBFME
SOA1ns-1446.awsdns-52.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-73.awsdns-09.com, ns-73.awsdns-09.com)

Analysis

Hierarchy

mapreports.ctb.com, stagingreports.ctb.com, oas.ctb.com, idoeonlinereports.ctb.com, iknow.ctb.com and a few other host names are all children of ctb.com.

IP Addresses

ctb.com points to a single IP number: 192.243.90.150.

Additional host names — iknow.ctb.com, acuity.ctb.com, programs.ctb.com and two others — share IP numbers with ctb.com.

Name Servers

ctb.com has four authoritative name servers: ns-73.awsdns-09.com, ns-580.awsdns-08.net, ns-1446.awsdns-52.org and ns-2022.awsdns-60.co.uk.

The name servers of ctb.com overlap at least partially with those of other domains — among them fagap.or.jp, references.api.autodesk.com, queensberryworkspace.com and two more.

These name servers commonly appear in combination with the name servers ns-1836.awsdns-37.co.uk.

Each of the four hosts ns-73.awsdns-09.com, ns-580.awsdns-08.net, ns-1446.awsdns-52.org and ns-2022.awsdns-60.co.uk has two IP addresses. ns-73.awsdns-09.com points to 205.251.192.73 and 2600:9000:5300:4900::1. ns-580.awsdns-08.net points to 205.251.194.68 and 2600:9000:5302:4400::1. ns-1446.awsdns-52.org points to 205.251.197.166 and 2600:9000:5305:a600::1. ns-2022.awsdns-60.co.uk points to 205.251.199.230 and 2600:9000:5307:e600::1.