cpptutor.ru - robtex.com

cpptutor.ru

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:878🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:8b6e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.120Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.110🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSscott.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3be6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A2803:f800:50::6ca2:c1e6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRscott.ns.cloudflare.com
A2a06:98c1:50::ac40:21e6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRscott.ns.cloudflare.com
A108.162.193.230🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A172.64.33.230🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A173.245.59.230🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
NSsue.ns.cloudflare.com
A2606:4700:50::adf5:3a91🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A2803:f800:50::6ca2:c091🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsue.ns.cloudflare.com
A2a06:98c1:50::ac40:2091🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsue.ns.cloudflare.com
A108.162.192.145🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A172.64.32.145🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A173.245.58.145🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
TXTyandex-verification: 3596a552ef151cac
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.8.120, 172.67.139.110
IPv6 hints2606:4700:3031::6815:878, 2606:4700:3033::ac43:8b6e
SOAscott.ns.cloudflare.comdns@cloudflare.com serial=2401153313

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=4068500

Same first word

cpptutor.ru

DNS History

14 records (6 active, 8 former)

20192020202120222023202420252026NSscott.ns.cloudflare.comsue.ns.cloudflare.comdns1.yandex.netdns2.yandex.netMXmx.yandex.netA104.21.8.120172.67.139.1102606:4700:3031::6815:8782606:4700:3033::ac43:8b6e176.215.253.246188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
○NSdns1.yandex.net2018-05-07 → 2018-05-07 · 3 obs
● 2018-05-07 19:23:46
○ 2026-03-07 20:38:18
○ 2026-04-13 15:06:02
○NSdns2.yandex.net2018-05-07 → 2018-05-07 · 3 obs
● 2018-05-07 19:23:46
○ 2026-03-07 20:38:18
○ 2026-04-13 15:06:02
●NSscott.ns.cloudflare.com2026-03-07 → 2026-04-13 · 3 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-04-13 15:06:02
●NSsue.ns.cloudflare.com2026-03-07 → 2026-04-13 · 3 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-04-13 15:06:02
○MXmx.yandex.net2018-05-07 → 2018-05-07 · 3 obs
● 2018-05-07 19:23:46
○ 2026-03-07 20:38:18
○ 2026-04-13 15:06:02
●A104.21.8.1202026-03-07 → 2026-04-13 · 6 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-03-14 11:41:44
○ 2026-03-14 17:01:54
● 2026-03-21 08:38:28
● 2026-04-13 15:06:02
●A172.67.139.1102026-03-07 → 2026-04-13 · 6 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-03-14 11:41:44
○ 2026-03-14 17:01:54
● 2026-03-21 08:38:28
● 2026-04-13 15:06:02
○A176.215.253.2462018-05-07 → 2018-05-07 · 3 obs
● 2018-05-07 19:23:46
○ 2026-03-07 20:38:18
○ 2026-04-13 15:06:02
○A188.114.96.02026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-14 11:41:44
● 2026-03-14 17:01:54
○ 2026-03-21 08:38:28
○ 2026-04-13 15:06:02
○A188.114.97.02026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-14 11:41:44
● 2026-03-14 17:01:54
○ 2026-03-21 08:38:28
○ 2026-04-13 15:06:02
●A2606:4700:3031::6815:8782026-03-07 → 2026-04-13 · 6 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-03-14 11:41:44
○ 2026-03-14 17:01:54
● 2026-03-21 08:38:28
● 2026-04-13 15:06:02
●A2606:4700:3033::ac43:8b6e2026-03-07 → 2026-04-13 · 6 obs
○ 2018-05-07 19:23:46
● 2026-03-07 20:38:18
● 2026-03-14 11:41:44
○ 2026-03-14 17:01:54
● 2026-03-21 08:38:28
● 2026-04-13 15:06:02
○A2a06:98c1:3120::2026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-14 11:41:44
● 2026-03-14 17:01:54
○ 2026-03-21 08:38:28
○ 2026-04-13 15:06:02
○A2a06:98c1:3121::2026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-14 11:41:44
● 2026-03-14 17:01:54
○ 2026-03-21 08:38:28
○ 2026-04-13 15:06:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, e.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...-
cpptutor.rusue.ns.cloudflare.com, scott.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.230

NS records: sue.ns.cloudflare.com, scott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cpptutor.ru (unsigned zone)

⏱️ Timing

Total: 575ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.8.120, 172.67.139.110
AAAA22606:4700:3033::ac43:8b6e, 2606:4700:3031::6815:878
NS2scott.ns.cloudflare.com, sue.ns.cloudflare.com
TXT1yandex-verification: 3596a552ef151cac
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1scott.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

cpptutor.ru points to four IP numbers: 2606:4700:3031::6815:878, 2606:4700:3033::ac43:8b6e, 104.21.8.120 and 172.67.139.110.

For instance, other host names book-club-queen.com, barbar.digital, hoidale.com, vivastreet.fr and nhi.org share IP numbers with cpptutor.ru.

Name Servers

cpptutor.ru is delegated to two name servers: scott.ns.cloudflare.com and sue.ns.cloudflare.com.

cpptutor.ru uses the same name server setup as other domains such as atomicclicks.com, flymycloud.com, m4freetv.info, redlineuk.co.uk and winebus.es.

cpptutor.ru shares name servers with other domains at least partially, for example casinotrust.com, cinema-scoop.com, zyppy.com, cici9game.com and laconnex-beach.ch.

These name servers are commonly used with the name servers nile.ns.cloudflare.com and jake.ns.cloudflare.com.

Host names with six IP numbers: host name scott.ns.cloudflare.com points to: 2606:4700:58::adf5:3be6, 2803:f800:50::6ca2:c1e6, 2a06:98c1:50::ac40:21e6, 108.162.193.230, 172.64.33.230 and 173.245.59.230; host name sue.ns.cloudflare.com points to: 2606:4700:50::adf5:3a91, 2803:f800:50::6ca2:c091, 2a06:98c1:50::ac40:2091, 108.162.192.145, 172.64.32.145 and 173.245.58.145.