programming.school - robtex.com

programming.school

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:9e64🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:3a56🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.86Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.100🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjihoon.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2ce9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjihoon.ns.cloudflare.com
A2803:f800:50::6ca2:c3e9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjihoon.ns.cloudflare.com
A2a06:98c1:50::ac40:23e9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjihoon.ns.cloudflare.com
A108.162.195.233🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjihoon.ns.cloudflare.com
A162.159.44.233Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjihoon.ns.cloudflare.com
A172.64.35.233🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjihoon.ns.cloudflare.com
NSmartha.ns.cloudflare.com
A2606:4700:50::a29f:268e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmartha.ns.cloudflare.com
A2803:f800:50::6ca2:c28e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmartha.ns.cloudflare.com
A2a06:98c1:50::ac40:228e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmartha.ns.cloudflare.com
A108.162.194.142🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmartha.ns.cloudflare.com
A162.159.38.142Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmartha.ns.cloudflare.com
A172.64.34.142🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmartha.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c0b::1b🇺🇸 Google2607:f8b0::/32
PTRdd-in-f27.1e100.net
A142.250.141.26🇺🇸 Google142.250.141.0/24
PTRdd-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTZOOM_verify_2mzSsJVwRqi3fRhGHTXe_w
TXTgoogle-site-verification=HNDjaamdAoh2-PTFq4rTJwwKWV0c7UbW-BXySw47feo
TXTgoogle-site-verification=vUgmvsZd73OK0Y9bfdGQJwNivgRIrTnLGH9Nf5QAFtI
TXTv=spf1 include:_spf.mlsend.com include:one.zoho.com include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.86, 172.67.158.100
IPv6 hints2606:4700:3031::ac43:9e64, 2606:4700:3037::6815:3a56
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=40, name=cloudflare-ech.com
SOAjihoon.ns.cloudflare.comdns@cloudflare.com serial=2402872972

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=1778811042

Subdomains

vn.programming.school

Same first word

programming.cl
programming.ch
programming.guru
programming.ph
programming.email
programming.my
programming.cc
programming.us
programming.at
programming.cn
programming.org
programming.guide
programming.in.th
programming.mobi
programming.pl
programming.school
programming.lv
programming.monster
programming.academy
programming.com.cn
programming.hu
programming.gr
programming.tools
programming.run
programming.or.jp
programming.team
programming.zone
programming.in.ua
programming.asia
programming.center
programming.biz
programming.fail
programming.nu
programming.fr
programming.agency
programming.be
programming.ca
programming.in
programming.wtf
programming.de
programming.tv
programming.systems
programming.fyi
programming.com.sg
programming.sa
programming.education
programming.dev
programming.training
programming.es
programming.ru
programming.com

Similar names

porgramming.com

DNS History

11 records (11 active, 0 former)

NSjihoon.ns.cloudflare.commartha.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.58.86172.67.158.1002606:4700:3031::ac43:9e642606:4700:3037::6815:3a56
●NSjihoon.ns.cloudflare.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●NSmartha.ns.cloudflare.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●MXalt1.aspmx.l.google.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●MXalt2.aspmx.l.google.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●MXalt3.aspmx.l.google.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●MXalt4.aspmx.l.google.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●MXaspmx.l.google.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●A104.21.58.862026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●A172.67.158.1002026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●A2606:4700:3031::ac43:9e642026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42
●A2606:4700:3037::6815:3a562026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 16:09:34
● 2026-05-15 02:37:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
schoolv2n0.nic.school, v0n2.nic.school, v0n0.nic.school, v0n3.nic.school...12 records
programming.schoolmartha.ns.cloudflare.com, jihoon.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.233

NS records: martha.ns.cloudflare.com, jihoon.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programming.school (unsigned zone)

⏱️ Timing

Total: 401ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.158.100, 104.21.58.86
AAAA22606:4700:3031::ac43:9e64, 2606:4700:3037::6815:3a56
NS2jihoon.ns.cloudflare.com, martha.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT4ZOOM_verify_2mzSsJVwRqi3fRhGHTXe_w, google-site-verification=HNDjaamdAoh2-PT...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1jihoon.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n0.nic.school, v2n0.nic.school, v0n2.nic.school...)

Analysis

Hierarchy

programming.school is the parent of vn.programming.school.

IP Addresses

programming.school resolves to four IP numbers: 2606:4700:3031::ac43:9e64, 2606:4700:3037::6815:3a56, 104.21.58.86 and 172.67.158.100.

other host names for instance wayfairofficesetup.com, strike-mish.com, curve.systems, trk2.watch-now.club and www.truyencotich.top share IP numbers with programming.school.

Name Servers

programming.school is delegated to two name servers: jihoon.ns.cloudflare.com and martha.ns.cloudflare.com.

programming.school shares the same name server setup as other domains, for example buscaplaya.com, netklinik.dk, agrosus.com, tellortodonti.com and sonix.cl.

programming.school at least partially shares name servers with other domains, for instance sparkspace.us, olivann.net, 3356207189.workers.dev, bynono.pt and humberbridge.co.uk.

These name servers are often used with duke.ns.cloudflare.com and nash.ns.cloudflare.com.

Host names with six IP numbers:

jihoon.ns.cloudflare.com points to: 2606:4700:58::a29f:2ce9, 2803:f800:50::6ca2:c3e9, 2a06:98c1:50::ac40:23e9, 108.162.195.233, 162.159.44.233 and 172.64.35.233; martha.ns.cloudflare.com points to: 2606:4700:50::a29f:268e, 2803:f800:50::6ca2:c28e, 2a06:98c1:50::ac40:228e, 108.162.194.142, 162.159.38.142 and 172.64.34.142.

Mail Servers

programming.school 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.

programming.school shares mail servers with other domains at least partially, including flin.org, ns500765.ns500693.ns500734.ns500693.ns500693.ns500693.ns500693.ns500693.ns500693.ns500683.ns500693.ns500683.ns500699.ns500602.dtrkdll.com, ns500698.ns500758.ns500698.ns500758.ns500735.ns500735.ns500698.ns500698.ns500708.ns500698.ns500698.ns500652.ns500652.ns500619.trackreceptor.com, ns500765.ns500693.ns500734.ns500734.ns500734.ns500699.ns500699.ns500632.ns500612.ns500588.ns500588.dtrkdll.com and ns500754.ns500671.ns500671.ns500731.ns500671.ns500754.ns500704.ns500731.ns500705.ns500291.ns500291.ns500649.ns500153.tenderladiesbz.com.

these mail servers are often used with the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Hosts with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c0b::1b and 142.250.141.26.

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.27.

alt2.aspmx.l.google.com points to 2607:f8b0:4023:3003::1b and 172.253.145.27.

alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.27.

alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.26.