kumon.com - robtex.com

kumon.com

DNSSEC⚠️ Not signed
A2606:4700:10::6814:10a3🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:10::ac42:98ea🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.20.16.163Cloudflare104.20.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.152.234🇺🇸 Cloudflare172.66.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSanna.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a66🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanna.ns.cloudflare.com
A2803:f800:50::6ca2:c066🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRanna.ns.cloudflare.com
A2a06:98c1:50::ac40:2066🇺🇸 Cloudflare2a06:98c1:50::/45
PTRanna.ns.cloudflare.com
A108.162.192.102🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanna.ns.cloudflare.com
A172.64.32.102🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanna.ns.cloudflare.com
A173.245.58.102🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanna.ns.cloudflare.com
NSapollo.ns.cloudflare.com
A2606:4700:58::adf5:3b42🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A2803:f800:50::6ca2:c142🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRapollo.ns.cloudflare.com
A2a06:98c1:50::ac40:2142🇺🇸 Cloudflare2a06:98c1:50::/45
PTRapollo.ns.cloudflare.com
A108.162.193.66🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A172.64.33.66🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
A173.245.59.66🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRapollo.ns.cloudflare.com
MXd206822a.ess.barracudanetworks.com ⭐
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
MXd206822b.ess.barracudanetworks.com(60)
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
TXT1rhkm2pdtgp5g7ap29b9ouujma
TXT4c88kavq3uajfikf0r6m50t5ea
TXT7ed4gqpk6t4smntkhgjtcvbndr
TXT951ptd1e2aftbukeiu04sht110
TXTMS=ms74885226
TXTZOOM_verify_9uQmFfVjyUdrnk8nnqKe8B
TXTb80gtqcidu2g58kkavrq72e37q
TXTbox-domain-verification=754221040da1f80835bf2e8848c86371ffcccdd368b51fa510c79...
TXTduo_sso_verification=LO90VQckJ27AwafBTI8gFJE6qbn0Yc3hPyEG3143Cfl86h3f2FJGA7di...
TXTe3l6sjpqrsvhcsitdj8e77asvi
TXTeb6klvsgbmj0et3ab09j85r9d7
TXTetq3lkclmqa3u56r3t01dc0o4p
TXTeu63cu4vvt3qq5inqa9ad12urs
TXTfacebook-domain-verification=1gtt6i9y2o0tupnob9b0qr99fs716j
TXTgHErfZFTsOKh2GxO2imgiIbdBx1Xtq2oC/LOkuWd+VUXkyDZubI+iJL6uaP/XE13Y00zfsldqdsj8...
TXTgoogle-site-verification=EpcqI78Pbi_mcZF7gxuoFnAQnLwCUUscCjKAkFvI-z8
TXTkna-ksislite-us-useast-prod-web01.kna-globalproduction-useast-prod-ase01.p.az...
TXTnri72l354jqes8ogqg3v5i6cuq
TXTv=spf1 ip4:209.137.158.39 ip4:209.137.158.100 ip4:209.137.158.3 ip4:168.245.1...
HTTPSHTTP/2 ✓ hints match
IPv4104.20.16.163, 172.66.152.234
IPv62606:4700:10::6814:10a3, 2606:4700:10::ac42:98ea
SOAanna.ns.cloudflare.comdns@cloudflare.com serial=2396598234

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=1771291435
rank #96189 globally
rank #44215 in the tld
WOT: SAFE (87/100)
📈 Tranco rank: #79,334

Subdomains

mail3.kumon.com
gw02.kumon.com
www.kumon.com
s.kumon.com
metrics.kumon.com
campaign.kumon.com

Same first word

kumon.net
kumon.co.kr
kumon.com.sg
kumon.com.co
kumon.ne.jp
kumon.co
kumon.vn
kumon.cl
kumon.ie
kumon.pt
kumon.world
kumon.co.in
kumon.es
kumon.cat
kumon.com.ar
kumon.life
kumon.co.id
kumon.cz
kumon.ru
kumon.de
kumon.com.pe
kumon.edu.hk
kumon.com.qa
kumon.services
kumon.com.ph
kumon.jp
kumon.com.uy
kumon.fr
kumon.mobi
kumon.co.th
kumon.com.au
kumon.com.br
kumon.me
kumon.it
kumon.org
kumon.ph
kumon.com.cn
kumon.com
kumon.com.mx
kumon.uy
kumon.co.jp
kumon.edgekey.net
kumon.biz
kumon.com.hk
kumon.sg
kumon.com.my
kumon.info
kumon.nl
kumon.eu
kumon.co.uk
kumon.com.vn
kumon.co.za
kumon.se
kumon.ca

Similar names

konum.istanbul
unkom.net
unkom.ru
nomuk.net
mukon.dk
ukmon.co.uk
konum.si
komnu.com
konum.com
komun.id
konum.la
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umonk.com
monku.net
komnu.dk
komun.info
monuk.com
konum.org
monku.at
mukon.cn
moknu.com
komun.hr
mounk.com
nomuk.com
nmouk.org
uknom.com
munko.com
munok.go.th
komun.te.ua
komun.de
komun.ch
munko.de
oknum.ru
nmouk.nhs.uk
oknum.com
munko.net
mukon.se
nomku.com
konum.io
nokum.de
komun.net
komun.org
kunom.com
nokum.com
munko.pl
kmoun.info
onkum.com
mounk.se
mukon.com
monku.com
unkom.com
komun.com
ukmon.de
munko.eu
komun.co
ukmon.com
mokun.net
konum.de

DNS History

17 records (8 active, 9 former)

2008201020122014201620182020202220242026NSanna.ns.cloudflare.comapollo.ns.cloudflare.comauth111.ns.uu.netauth120.ns.uu.netns-1521.awsdns-62.orgns-1754.awsdns-27.co.ukns-246.awsdns-30.comns-574.awsdns-07.netMXd206822a.ess.barracudanetworks.comd206822b.ess.barracudanetworks.commail3.kumon.comA104.20.16.163172.66.152.2342606:4700:10::6814:10a32606:4700:10::ac42:98ea209.137.158.10209.139.88.69
●NSanna.ns.cloudflare.com2026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
●NSapollo.ns.cloudflare.com2026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
○NSauth111.ns.uu.net2007-11-24 → 2016-11-22 · 4 obs
● 2007-11-24 22:40:10
● 2016-11-22 14:46:42
○ 2017-06-24 00:02:04
○ 2026-03-20 11:52:22
○NSauth120.ns.uu.net2007-11-24 → 2016-11-22 · 4 obs
● 2007-11-24 22:40:10
● 2016-11-22 14:46:42
○ 2017-06-24 00:02:04
○ 2026-03-20 11:52:22
○NSns-1521.awsdns-62.org2017-06-24 → 2017-08-04 · 5 obs
○ 2016-11-22 14:46:42
● 2017-06-24 00:02:04
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
○NSns-1754.awsdns-27.co.uk2017-06-24 → 2017-08-04 · 5 obs
○ 2016-11-22 14:46:42
● 2017-06-24 00:02:04
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
○NSns-246.awsdns-30.com2017-06-24 → 2017-08-04 · 5 obs
○ 2016-11-22 14:46:42
● 2017-06-24 00:02:04
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
○NSns-574.awsdns-07.net2017-06-24 → 2017-08-04 · 5 obs
○ 2016-11-22 14:46:42
● 2017-06-24 00:02:04
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
●MXd206822a.ess.barracudanetworks.com2026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
●MXd206822b.ess.barracudanetworks.com2026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
○MXmail3.kumon.com2007-11-24 → 2017-08-04 · 4 obs
● 2007-11-24 22:40:10
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
●A104.20.16.1632026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
●A172.66.152.2342026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
○A209.137.158.102015-08-21 → 2017-08-04 · 5 obs
○ 2007-11-24 22:40:10
● 2015-08-21 19:44:14
● 2017-08-04 00:58:00
○ 2026-02-22 14:23:44
○ 2026-03-20 11:52:22
○A209.139.88.692007-11-24 → 2007-11-24 · 3 obs
● 2007-11-24 22:40:10
○ 2015-08-21 19:44:14
○ 2026-03-20 11:52:22
●A2606:4700:10::6814:10a32026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22
●A2606:4700:10::ac42:98ea2026-02-22 → 2026-03-20 · 3 obs
○ 2017-08-04 00:58:00
● 2026-02-22 14:23:44
● 2026-03-20 11:52:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
kumon.comanna.ns.cloudflare.com, apollo.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.192.102

NS records: anna.ns.cloudflare.com, apollo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kumon.com (unsigned zone)

⏱️ Timing

Total: 214ms | Queries: -

📄 Records

TypeCountSample Data
A2104.20.16.163, 172.66.152.234
AAAA22606:4700:10::ac42:98ea, 2606:4700:10::6814:10a3
NS2anna.ns.cloudflare.com, apollo.ns.cloudflare.com
MX2d206822a.ess.barracudanetworks.com (pri:, d206822b.ess.barracudanetworks.com (pri:
TXT191rhkm2pdtgp5g7ap29b9ouujma, 4c88kavq3uajfikf0r6m50t5ea...
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1anna.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (anna.ns.cloudflare.com, anna.ns.cloudflare.com, anna.ns.cloudflare.com...)

Analysis

Hierarchy

kumon.com is the parent of mail3.kumon.com, gw02.kumon.com, www.kumon.com, s.kumon.com, metrics.kumon.com and several other host names.

IP Addresses

kumon.com points to four IP numbers: 2606:4700:10::6814:10a3, 2606:4700:10::ac42:98ea, 104.20.16.163 and 172.66.152.234.

Other host names, for instance federalgovadvisors.com, enerfip.eu, www.enerfip.eu, www.kumon.com and s.kumon.com share IP numbers with kumon.com.

Name Servers

kumon.com's delegation is to two name servers anna.ns.cloudflare.com and apollo.ns.cloudflare.com.

kumon.com shares the same name server configuration as other domains, such as bracewell.co.nz, penola.co.nz, northfieldsfinance.com, horticentre.co.nz and asalmon.co.nz.

kumon.com at least partially shares its name servers with other domains, for instance marinaprojects.com, dandandin.net, gempawin-05.site, danielhan.dev and getdownbaltimore.com.

These name servers are often used together with the name servers crystal.ns.cloudflare.com.

Host names with six IP numbers:

anna.ns.cloudflare.com points to: 2606:4700:50::adf5:3a66, 2803:f800:50::6ca2:c066, 2a06:98c1:50::ac40:2066, 108.162.192.102, 172.64.32.102 and 173.245.58.102.

apollo.ns.cloudflare.com points to: 2606:4700:58::adf5:3b42, 2803:f800:50::6ca2:c142, 2a06:98c1:50::ac40:2142, 108.162.193.66, 172.64.33.66 and 173.245.59.66.

Mail Servers

Two mail servers d206822a.ess.barracudanetworks.com and d206822b.ess.barracudanetworks.com handle kumon.com.

Host names with three IP numbers

Host d206822a.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255

Host d206822b.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255

Host names that point to 209.222.82.252: d206822a.ess.barracudanetworks.com and d206822b.ess.barracudanetworks.com

Host names that point to 209.222.82.253: d206822a.ess.barracudanetworks.com and d206822b.ess.barracudanetworks.com

Host names that point to 209.222.82.255: d206822a.ess.barracudanetworks.com and d206822b.ess.barracudanetworks.com