4dirschool.ru - robtex.com

4dirschool.ru

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:5bbd🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:b25a🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.91.189Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.178.90🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadel.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a37🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadel.ns.cloudflare.com
A2803:f800:50::6ca2:c037🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRadel.ns.cloudflare.com
A2a06:98c1:50::ac40:2037🇺🇸 Cloudflare2a06:98c1:50::/45
PTRadel.ns.cloudflare.com
A108.162.192.55🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadel.ns.cloudflare.com
A172.64.32.55🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadel.ns.cloudflare.com
A173.245.58.55🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadel.ns.cloudflare.com
NSvalentin.ns.cloudflare.com
A2606:4700:58::a29f:2cce🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A2803:f800:50::6ca2:c3ce🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvalentin.ns.cloudflare.com
A2a06:98c1:50::ac40:23ce🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvalentin.ns.cloudflare.com
A108.162.195.206🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A162.159.44.206Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A172.64.35.206🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.91.189, 172.67.178.90
IPv6 hints2606:4700:3030::6815:5bbd, 2606:4700:3037::ac43:b25a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOAadel.ns.cloudflare.comdns@cloudflare.com serial=2399852130

ru

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=4068693

Same first word

4dirschool.ru

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSadel.ns.cloudflare.comvalentin.ns.cloudflare.comns1.sprinthost.runs2.sprinthost.ruMXmail.4dirschool.ruA104.21.91.189172.67.178.902606:4700:3030::6815:5bbd2606:4700:3037::ac43:b25a141.8.192.108141.8.194.236
●NSadel.ns.cloudflare.com2026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54
○NSns1.sprinthost.ru2015-05-24 → 2016-09-11 · 4 obs
● 2015-05-24 06:14:56
● 2016-09-11 13:49:58
○ 2026-04-09 23:48:34
○ 2026-04-29 17:20:54
○NSns2.sprinthost.ru2015-05-24 → 2016-09-11 · 4 obs
● 2015-05-24 06:14:56
● 2016-09-11 13:49:58
○ 2026-04-09 23:48:34
○ 2026-04-29 17:20:54
●NSvalentin.ns.cloudflare.com2026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54
○MXmail.4dirschool.ru2015-05-24 → 2016-09-11 · 4 obs
● 2015-05-24 06:14:56
● 2016-09-11 13:49:58
○ 2026-04-09 23:48:34
○ 2026-04-29 17:20:54
●A104.21.91.1892026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54
○A141.8.192.1082015-05-24 → 2016-03-19 · 4 obs
● 2015-05-24 06:14:56
● 2016-03-19 17:48:02
○ 2016-09-11 13:49:58
○ 2026-04-29 17:20:54
○A141.8.194.2362016-09-11 → 2016-09-11 · 4 obs
○ 2016-03-19 17:48:02
● 2016-09-11 13:49:58
○ 2026-04-09 23:48:34
○ 2026-04-29 17:20:54
●A172.67.178.902026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54
●A2606:4700:3030::6815:5bbd2026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54
●A2606:4700:3037::ac43:b25a2026-04-09 → 2026-04-29 · 3 obs
○ 2016-09-11 13:49:58
● 2026-04-09 23:48:34
● 2026-04-29 17:20:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
4dirschool.ruadel.ns.cloudflare.com, valentin.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.55

NS records: adel.ns.cloudflare.com, valentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4dirschool.ru (unsigned zone)

⏱️ Timing

Total: 1117ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.178.90, 104.21.91.189
AAAA22606:4700:3037::ac43:b25a, 2606:4700:3030::6815:5bbd
NS2adel.ns.cloudflare.com, valentin.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1adel.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

4dirschool.ru resolves to four IP numbers: 2606:4700:3030::6815:5bbd, 2606:4700:3037::ac43:b25a, 104.21.91.189 and 172.67.178.90.

other host names for instance tesd-9551.papini-dochku.ru, tesd-23059.papini-dochku.ru, tesd-24635.papini-dochku.ru, tesd-7771152.papini-dochku.ru and 63ebb31bd132.63ebb31bd132.63ebb31bd132.63ebb31bd132.63ebb31bd132.63ebb31bd132.63ebb31bd132.63ebb31bd132.odogs.de share IP numbers with 4dirschool.ru.

Name Servers

4dirschool.ru is delegated to two name servers: adel.ns.cloudflare.com and valentin.ns.cloudflare.com.

4dirschool.ru shares the same name server setup as other domains, for example saisska.com, eigate.com, ajitm.com, cdackolkata.in and linito.io.

4dirschool.ru at least partially shares name servers with other domains, for instance desktop.nl, kraanbedrijf.info, yienfao2026.top, geran.nl and araimbault.com.

These name servers are commonly used with katelyn.ns.cloudflare.com, marge.ns.cloudflare.com, jack.ns.cloudflare.com and arch.ns.cloudflare.com.

Host names with six IP numbers:

adel.ns.cloudflare.com points to: 2606:4700:50::adf5:3a37, 2803:f800:50::6ca2:c037, 2a06:98c1:50::ac40:2037, 108.162.192.55, 172.64.32.55 and 173.245.58.55; valentin.ns.cloudflare.com points to: 2606:4700:58::a29f:2cce, 2803:f800:50::6ca2:c3ce, 2a06:98c1:50::ac40:23ce, 108.162.195.206, 162.159.44.206 and 172.64.35.206.