study-free.ru - robtex.com

study-free.ru

DNSSEC⚠️ Not signed
A195.133.196.251🇷🇺 MTW-AS195.133.196.0/23
NSa.ns.selectel.ru ⭐
A2a00:ab00:800::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6
A188.68.203.1🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object
PTRa.ns.selectel.ru
NSb.ns.selectel.ru
A2a00:ab00:801::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6
A77.223.114.2🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object
PTRb.ns.selectel.ru
NSc.ns.selectel.ru
A2a00:ab00:802::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6
A188.68.203.3🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object
PTRc.ns.selectel.ru
NSd.ns.selectel.ru
A2a00:ab00:803::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6
A77.223.114.4🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object
PTRd.ns.selectel.ru
SOAa.ns.selectel.rusupport@selectel.ru 2026-03-10 #3

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=4068286

Same first word

study-free.com
study-free.ru

Similar names

free-study.com

DNS History

14 records (5 active, 9 former)

20192020202120222023202420252026NSa.ns.selectel.rub.ns.selectel.ruc.ns.selectel.rud.ns.selectel.rubethany.ns.cloudflare.commaciej.ns.cloudflare.comns1.sprinthost.runs2.sprinthost.ruA195.133.196.251141.8.194.78188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSa.ns.selectel.ru2026-03-13 → 2026-03-26 · 3 obs
○ 2018-05-20 22:31:50
● 2026-03-13 13:24:54
● 2026-03-26 20:40:20
●NSb.ns.selectel.ru2026-03-13 → 2026-03-26 · 3 obs
○ 2018-05-20 22:31:50
● 2026-03-13 13:24:54
● 2026-03-26 20:40:20
○NSbethany.ns.cloudflare.com2026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
●NSc.ns.selectel.ru2026-03-13 → 2026-03-26 · 3 obs
○ 2018-05-20 22:31:50
● 2026-03-13 13:24:54
● 2026-03-26 20:40:20
●NSd.ns.selectel.ru2026-03-13 → 2026-03-26 · 3 obs
○ 2018-05-20 22:31:50
● 2026-03-13 13:24:54
● 2026-03-26 20:40:20
○NSmaciej.ns.cloudflare.com2026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○NSns1.sprinthost.ru2018-05-20 → 2018-05-20 · 3 obs
● 2018-05-20 22:31:50
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○NSns2.sprinthost.ru2018-05-20 → 2018-05-20 · 3 obs
● 2018-05-20 22:31:50
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○A141.8.194.782018-05-20 → 2018-05-20 · 3 obs
● 2018-05-20 22:31:50
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○A188.114.96.02026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○A188.114.97.02026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
●A195.133.196.2512026-03-13 → 2026-03-26 · 3 obs
○ 2018-05-20 22:31:50
● 2026-03-13 13:24:54
● 2026-03-26 20:40:20
○A2a06:98c1:3120::2026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20
○A2a06:98c1:3121::2026-03-13 → 2026-03-26 · 2 obs
○ 2026-03-13 13:24:54
○ 2026-03-26 20:40:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rue.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...-
study-free.rua.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru4 records

✅ Authoritative Response

Server:77.223.114.4

NS records: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study-free.ru (unsigned zone)

⏱️ Timing

Total: 679ms | Queries: -

📄 Records

TypeCountSample Data
A1195.133.196.251
NS4d.ns.selectel.ru, b.ns.selectel.ru...
SOA1a.ns.selectel.ru support.selectel.ru

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (d.ns.selectel.ru, c.ns.selectel.ru, b.ns.selectel.ru...)

Analysis

IP Addresses

study-free.ru points to a single IP: 195.133.196.251.

Other host names, for instance app12.k12-talk.ru, aboutkamchatka.ru, k12-talk.ru, sadplod.ru and ns2.aboutkamchatka.ru share IP numbers with study-free.ru.

Name Servers

study-free.ru is delegated to four name servers: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru.

study-free.ru at least partially shares its name servers with other domains, for instance alfa-zaem.ru, ollstrong.ru, bloha.ru, dreamvpn.pro and aydiomania.ru.

Host names with two IPs: a.ns.selectel.ru points to 2a00:ab00:800::2:53 and 188.68.203.1; b.ns.selectel.ru points to 2a00:ab00:801::2:53 and 77.223.114.2; c.ns.selectel.ru points to 2a00:ab00:802::2:53 and 188.68.203.3; d.ns.selectel.ru points to 2a00:ab00:803::2:53 and 77.223.114.4.