9class.ru - dns.ninja

9class.ru

DNSSEC⚠️ Not signed
A89.108.93.146🇷🇺 AS-REGRU89.108.93.0/24 Reg.Ru-B2C
PTRazat.example.com
PTRfree.renter.ru
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
TXTgoogle-site-verification=Fq_mEw18W_h9szTrnoI2hJYWEcl-7NlygbG3qVSMhkk
SOAa.ns.selectel.rusupport@selectel.ru 2025-03-15 #4

ru

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSc.tld-servers.ru
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=4069679
WOT: UNKNOWN (64/100)

Same first word

9class.com
9class.net
9class.ru

Similar names

class9.com
class9.pk

DNS History

17 records (5 active, 12 former)

20162017201820192020202120222023202420252026NSa.ns.selectel.rub.ns.selectel.ruc.ns.selectel.rud.ns.selectel.runs.masterhost.runs1.masterhost.runs2.masterhost.ruMXmx1.masterhost.ruA89.108.93.1462a00:15f8:a000:5:1:11:4:a0242a00:15f8:a000:5:1:12:4:a0242a00:15f8:a000:5:1:13:4:a0242a00:15f8:a000:5:1:14:4:a02490.156.201.11890.156.201.3490.156.201.6490.156.201.86
●NSa.ns.selectel.ru2026-04-25 → 2026-07-20 · 3 obs
○ 2017-04-11 06:31:00
● 2026-04-25 09:11:54
● 2026-07-20 04:22:26
●NSb.ns.selectel.ru2026-04-25 → 2026-07-20 · 3 obs
○ 2017-04-11 06:31:00
● 2026-04-25 09:11:54
● 2026-07-20 04:22:26
●NSc.ns.selectel.ru2026-04-25 → 2026-07-20 · 3 obs
○ 2017-04-11 06:31:00
● 2026-04-25 09:11:54
● 2026-07-20 04:22:26
●NSd.ns.selectel.ru2026-04-25 → 2026-07-20 · 3 obs
○ 2017-04-11 06:31:00
● 2026-04-25 09:11:54
● 2026-07-20 04:22:26
○NSns.masterhost.ru2015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○NSns1.masterhost.ru2015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○NSns2.masterhost.ru2015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○MXmx1.masterhost.ru2015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A2a00:15f8:a000:5:1:11:4:a0242015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A2a00:15f8:a000:5:1:12:4:a0242015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A2a00:15f8:a000:5:1:13:4:a0242015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A2a00:15f8:a000:5:1:14:4:a0242015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
●A89.108.93.1462026-04-25 → 2026-07-20 · 3 obs
○ 2017-04-11 06:31:00
● 2026-04-25 09:11:54
● 2026-07-20 04:22:26
○A90.156.201.1182015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A90.156.201.342015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A90.156.201.642015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26
○A90.156.201.862015-07-25 → 2017-04-11 · 4 obs
● 2015-07-25 23:21:16
● 2017-04-11 06:31:00
○ 2026-04-25 09:11:54
○ 2026-07-20 04:22:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
9class.rua.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru8 records

✅ Authoritative Response

Server:188.68.203.1

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 9class.ru (unsigned zone)

⏱️ Timing

Total: 1104ms | Queries: -

📄 Records

TypeCountSample Data
A189.108.93.146
NS4c.ns.selectel.ru, d.ns.selectel.ru...
TXT1google-site-verification=Fq_mEw18W_h9szT
SOA1a.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

IP Addresses

9class.ru resolves to one IP address: 89.108.93.146.

school-biology.ru, schooltask.ru, gdz.red and two other host names share IP numbers with 9class.ru.

Name Servers

The authoritative name servers for 9class.ru are a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru.

9class.ru has at least partial name server overlap with other domains, such as smolpas.ru, lapresse.ru, vicodes.com and two others.

It is common to see these name servers used together with name servers ns2.baz-on.ru and ns1.baz-on.ru.

a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru all point to exactly two IP numbers each: a.ns.selectel.ru → 188.68.203.1 and 2a00:ab00:800::2:53; b.ns.selectel.ru → 77.223.114.2 and 2a00:ab00:801::2:53; c.ns.selectel.ru → 188.68.203.3 and 2a00:ab00:802::2:53; d.ns.selectel.ru → 77.223.114.4 and 2a00:ab00:803::2:53.