koding.school - dns.ninja

koding.school

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c27c🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:14d8🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.20.216Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.194.124🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlars.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bc3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A2803:f800:50::6ca2:c1c3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlars.ns.cloudflare.com
A2a06:98c1:50::ac40:21c3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlars.ns.cloudflare.com
A108.162.193.195🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A172.64.33.195🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A173.245.59.195🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
NSlisa.ns.cloudflare.com
A2606:4700:50::adf5:3a83🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A2803:f800:50::6ca2:c083🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlisa.ns.cloudflare.com
A2a06:98c1:50::ac40:2083🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlisa.ns.cloudflare.com
A108.162.192.131🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A172.64.32.131🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A173.245.58.131🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
MXmx2.zoho.com ⭐
A136.143.183.44🇺🇸 ZohoAS136.143.182.0/23 Zoho
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
MXmx.zoho.com(20)
A204.141.43.44🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx6.zoho.com
PTRmx7.zoho.com
PTRmx8.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
TXTv=spf1 include:zoho.com ~all
TXTzoho-verification=zb14942389.zmverify.zoho.com
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.21.20.216, 172.67.194.124
IPv6 hints2606:4700:3032::ac43:c27c, 2606:4700:3037::6815:14d8
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=167, name=cloudflare-ech.com
SOAlars.ns.cloudflare.comdns@cloudflare.com serial=2410815890

school

DNSSEC🔒 Signed (DS record present)
NSv0n0.nic.school ⭐
NSv0n1.nic.school
NSv0n2.nic.school
NSv0n3.nic.school
NSv2n0.nic.school
NSv2n1.nic.school
SOAv0n0.nic.schoolhostmaster@donuts.email serial=1785846865
📈 Tranco rank: #794,561

Same first word

koding.work
koding.uz
koding.online
koding.com
koding.ai
koding.tv
koding.ro
koding.co.uk
koding.co
koding.net
koding.org
koding.no
koding.si
koding.ir
koding.ca
koding.in
koding.school
koding.io

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kongdi.net
dikong.xyz
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dingko.com
kingdo.com.tw
kongdi.com
inkdog.com
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gokind.com
godkin.net
dongki.com
kingdo.com
godkin.ca
ikdong.com
gondik.cz
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kindgo.com
dikong.com
godnik.me
nikdog.net
kingdo.ms
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dgkino.com
doking.co.za
godkin.name
kingdo.co.jp
kongdi.com.cn
doking.shop
kingdo.com.cn
dgkino.eu
kingdo.ca

DNS History

22 records (8 active, 14 former)

2017201820192020202120222023202420252026NSlars.ns.cloudflare.comlisa.ns.cloudflare.comMXmx.zoho.commx2.zoho.comeforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.comA104.21.20.216172.67.194.1242606:4700:3032::ac43:c27c2606:4700:3037::6815:14d8104.27.156.77104.27.157.77188.114.96.0188.114.97.02400:cb00:2048:1::681b:9c4d2400:cb00:2048:1::681b:9d4d2606:4700:3034::ac43:c27c2a06:98c1:3120::2a06:98c1:3121::
●NSlars.ns.cloudflare.com2016-12-10 → 2026-08-04 · 2 obs
● 2016-12-10 21:40:10
● 2026-08-04 12:48:58
●NSlisa.ns.cloudflare.com2016-12-10 → 2026-08-04 · 2 obs
● 2016-12-10 21:40:10
● 2026-08-04 12:48:58
○MXeforward1.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 21:40:10
○ 2018-05-20 11:14:50
○ 2026-08-04 12:48:58
○MXeforward2.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 21:40:10
○ 2018-05-20 11:14:50
○ 2026-08-04 12:48:58
○MXeforward3.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 21:40:10
○ 2018-05-20 11:14:50
○ 2026-08-04 12:48:58
○MXeforward4.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 21:40:10
○ 2018-05-20 11:14:50
○ 2026-08-04 12:48:58
○MXeforward5.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 21:40:10
○ 2018-05-20 11:14:50
○ 2026-08-04 12:48:58
●MXmx.zoho.com2018-05-20 → 2026-08-04 · 3 obs
○ 2016-12-10 21:40:10
● 2018-05-20 11:14:50
● 2026-08-04 12:48:58
●MXmx2.zoho.com2018-05-20 → 2026-08-04 · 3 obs
○ 2016-12-10 21:40:10
● 2018-05-20 11:14:50
● 2026-08-04 12:48:58
●A104.21.20.2162026-03-15 → 2026-08-04 · 10 obs
○ 2018-05-20 11:14:50
● 2026-03-15 17:42:00
● 2026-04-01 03:05:02
○ 2026-04-02 09:58:20
● 2026-04-30 19:37:06
○ 2026-06-02 16:36:34
● 2026-06-07 20:36:08
○ 2026-06-20 06:12:34
● 2026-08-03 00:46:14
● 2026-08-04 12:48:58
○A104.27.156.772016-12-10 → 2018-05-20 · 4 obs
● 2016-12-10 21:40:10
● 2018-05-20 11:14:50
○ 2026-03-15 17:42:00
○ 2026-08-04 12:48:58
○A104.27.157.772016-12-10 → 2018-05-20 · 4 obs
● 2016-12-10 21:40:10
● 2018-05-20 11:14:50
○ 2026-03-15 17:42:00
○ 2026-08-04 12:48:58
●A172.67.194.1242026-03-15 → 2026-08-04 · 10 obs
○ 2018-05-20 11:14:50
● 2026-03-15 17:42:00
● 2026-04-01 03:05:02
○ 2026-04-02 09:58:20
● 2026-04-30 19:37:06
○ 2026-06-02 16:36:34
● 2026-06-07 20:36:08
○ 2026-06-20 06:12:34
● 2026-08-03 00:46:14
● 2026-08-04 12:48:58
○A188.114.96.02026-04-02 → 2026-06-20 · 9 obs
○ 2026-03-15 17:42:00
○ 2026-04-01 03:05:02
● 2026-04-02 09:58:20
○ 2026-04-30 19:37:06
● 2026-06-02 16:36:34
○ 2026-06-07 20:36:08
● 2026-06-20 06:12:34
○ 2026-08-03 00:46:14
○ 2026-08-04 12:48:58
○A188.114.97.02026-04-02 → 2026-06-20 · 9 obs
○ 2026-03-15 17:42:00
○ 2026-04-01 03:05:02
● 2026-04-02 09:58:20
○ 2026-04-30 19:37:06
● 2026-06-02 16:36:34
○ 2026-06-07 20:36:08
● 2026-06-20 06:12:34
○ 2026-08-03 00:46:14
○ 2026-08-04 12:48:58
○A2400:cb00:2048:1::681b:9c4d2016-12-10 → 2018-05-20 · 4 obs
● 2016-12-10 21:40:10
● 2018-05-20 11:14:50
○ 2026-03-15 17:42:00
○ 2026-08-04 12:48:58
○A2400:cb00:2048:1::681b:9d4d2016-12-10 → 2018-05-20 · 4 obs
● 2016-12-10 21:40:10
● 2018-05-20 11:14:50
○ 2026-03-15 17:42:00
○ 2026-08-04 12:48:58
●A2606:4700:3032::ac43:c27c2026-08-03 → 2026-08-04 · 3 obs
○ 2026-06-20 06:12:34
● 2026-08-03 00:46:14
● 2026-08-04 12:48:58
○A2606:4700:3034::ac43:c27c2026-03-15 → 2026-06-07 · 9 obs
○ 2018-05-20 11:14:50
● 2026-03-15 17:42:00
● 2026-04-01 03:05:02
○ 2026-04-02 09:58:20
● 2026-04-30 19:37:06
○ 2026-06-02 16:36:34
● 2026-06-07 20:36:08
○ 2026-06-20 06:12:34
○ 2026-08-04 12:48:58
●A2606:4700:3037::6815:14d82026-03-15 → 2026-08-04 · 10 obs
○ 2018-05-20 11:14:50
● 2026-03-15 17:42:00
● 2026-04-01 03:05:02
○ 2026-04-02 09:58:20
● 2026-04-30 19:37:06
○ 2026-06-02 16:36:34
● 2026-06-07 20:36:08
○ 2026-06-20 06:12:34
● 2026-08-03 00:46:14
● 2026-08-04 12:48:58
○A2a06:98c1:3120::2026-04-02 → 2026-06-20 · 9 obs
○ 2026-03-15 17:42:00
○ 2026-04-01 03:05:02
● 2026-04-02 09:58:20
○ 2026-04-30 19:37:06
● 2026-06-02 16:36:34
○ 2026-06-07 20:36:08
● 2026-06-20 06:12:34
○ 2026-08-03 00:46:14
○ 2026-08-04 12:48:58
○A2a06:98c1:3121::2026-04-02 → 2026-06-20 · 9 obs
○ 2026-03-15 17:42:00
○ 2026-04-01 03:05:02
● 2026-04-02 09:58:20
○ 2026-04-30 19:37:06
● 2026-06-02 16:36:34
○ 2026-06-07 20:36:08
● 2026-06-20 06:12:34
○ 2026-08-03 00:46:14
○ 2026-08-04 12:48:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
schoolv0n1.nic.school, v0n0.nic.school, v2n1.nic.school, v2n0.nic.school...-
koding.schoollisa.ns.cloudflare.com, lars.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.131

NS records: lisa.ns.cloudflare.com, lars.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koding.school (unsigned zone)

⏱️ Timing

Total: 590ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.20.216, 172.67.194.124
AAAA22606:4700:3032::ac43:c27c, 2606:4700:3037::6815:14d8
NS2lars.ns.cloudflare.com, lisa.ns.cloudflare.com
MX2mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)
TXT2v=spf1 include:zoho.com ~all, zoho-verification=zb14942389.zmverify.zo
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1lars.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

koding.school resolves to four IP addresses: 104.21.20.216, 172.67.194.124, 2606:4700:3032::ac43:c27c and 2606:4700:3037::6815:14d8.

www.animal-care.net, www.cloudatize.com, rootsafe.nl plus two other host names have IP numbers in common with koding.school.

Name Servers

koding.school has two authoritative name servers — lars.ns.cloudflare.com and lisa.ns.cloudflare.com.

The name server configuration of koding.school is shared with other domains, for instance 363555.com, srgv.net, bk7788.com and two others.

koding.school has at least partial name server overlap with other domains, such as asmhan.com, mail-tr.com, thegodmanfilm.com and two others.

It is common to see these name servers used together with name servers ken.ns.cloudflare.com and bonnie.ns.cloudflare.com.

Hosts with 6 IP addresses each:

lars.ns.cloudflare.com points to 108.162.193.195, 172.64.33.195, 173.245.59.195 and 3 other IP addresses.

lisa.ns.cloudflare.com points to 108.162.192.131, 172.64.32.131, 173.245.58.131 and 3 other IP addresses.

Mail Servers

koding.school uses two mail servers, mx2.zoho.com and mx.zoho.com.

The mail server setup of koding.school matches that of other domains such as flyingleap.us, goodmanpm.com, rmptvl.com and two others.

At least some of the mail servers used by koding.school are shared with other domains: produactivity.com, barrettech.com, bonnici.co.uk and two others among them.

These mail servers tend to be used in conjunction with the mail servers mx3.zoho.com.

mx2.zoho.com directs to 136.143.183.44 and mx.zoho.com directs to 204.141.43.44; each host name points to exactly one IP number.