school-gu.ru - robtex.com
school-gu.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 31.220.83.215🇩🇪 CONTABO31.220.80.0/21 | ||||||
| PTR | vmi2833792.contaboserver.net | ||||||
| NS | a.ns.selectel.ru ⭐ | ||||||
| A | 2a00:ab00:800::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 188.68.203.1🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | a.ns.selectel.ru | ||||||
| NS | b.ns.selectel.ru | ||||||
| A | 2a00:ab00:801::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 77.223.114.2🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | b.ns.selectel.ru | ||||||
| NS | c.ns.selectel.ru | ||||||
| A | 2a00:ab00:802::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 188.68.203.3🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object | ||||||
| PTR | c.ns.selectel.ru | ||||||
| NS | d.ns.selectel.ru | ||||||
| A | 2a00:ab00:803::2:53🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6 | ||||||
| A | 77.223.114.4🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object | ||||||
| PTR | d.ns.selectel.ru | ||||||
| SOA | a.ns.selectel.rusupport@selectel.ru 2026-03-28 #3 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4068687 | ||||||
Subdomains
ufa.school-gu.ru |
norilsk.school-gu.ru |
rybinsk.school-gu.ru |
chelyabinsk.school-gu.ru |
barnaul.school-gu.ru |
ekaterinburg.school-gu.ru |
miass.school-gu.ru |
tyumen.school-gu.ru |
kurgan.school-gu.ru |
novocherkassk.school-gu.ru |
perm.school-gu.ru |
Same first word
school-gu.ru |
DNS History
6 records (5 active, 1 former)
●NSa.ns.selectel.ru2026-03-19 → 2026-04-29 · 2 obs
● 2026-04-29 04:16:06
●NSb.ns.selectel.ru2026-03-19 → 2026-04-29 · 2 obs
● 2026-04-29 04:16:06
●NSc.ns.selectel.ru2026-03-19 → 2026-04-29 · 2 obs
● 2026-04-29 04:16:06
●NSd.ns.selectel.ru2026-03-19 → 2026-04-29 · 2 obs
● 2026-04-29 04:16:06
○A168.222.183.2482026-03-19 → 2026-03-26 · 4 obs
● 2026-03-26 11:54:42
○ 2026-03-28 13:10:50
○ 2026-04-29 04:16:06
●A31.220.83.2152026-03-28 → 2026-04-29 · 3 obs
● 2026-03-28 13:10:50
● 2026-04-29 04:16:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| school-gu.ru | a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru | 8 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 school-gu.ru (unsigned zone)
⏱️ Timing
Total: 703ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.220.83.215 |
| NS | 4 | a.ns.selectel.ru, d.ns.selectel.ru... |
| SOA | 1 | a.ns.selectel.ru support.selectel.ru |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru...)
Analysis
Hierarchy
school-gu.ru is a parent of ufa.school-gu.ru, norilsk.school-gu.ru, rybinsk.school-gu.ru, chelyabinsk.school-gu.ru, barnaul.school-gu.ru and several other host names.
IP Addresses
school-gu.ru points to a single IP number: 31.220.83.215.
other host names for instance severouralsk.vsepropiski.ru, danilov.propiska-propiska.ru, legal-registratsia.ru, kupit-registratsiya.ru and miass.school-reg.ru share IP numbers with school-gu.ru.
Name Servers
school-gu.ru is delegated to four name servers: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru.
school-gu.ru at least partially shares name servers with other domains, for instance capjack.ru, easybook.ru, adli-store.com, aiwoo.info and strategy-it.com.
Host names with two IP numbers:
Host name a.ns.selectel.ru points to: 2a00:ab00:800::2:53 and 188.68.203.1.
Host name b.ns.selectel.ru points to: 2a00:ab00:801::2:53 and 77.223.114.2.
Host name c.ns.selectel.ru points to: 2a00:ab00:802::2:53 and 188.68.203.3.
Host name d.ns.selectel.ru points to: 2a00:ab00:803::2:53 and 77.223.114.4.