mail.codeguide.ru - dns.ninja

mail.codeguide.ru

CNAMEdomain.mail.yandex.net
CNAMEmail.yandex.ru
DNSSEC⚠️ Not signed
A2a02:6b8::a4🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmail-yandex-ru-production-external.stable.qloud-b.yandex.net
A77.88.21.37🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
NSns3.yandex.ru ⭐
A2a02:6b8::1001🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns3.yandex.ru
A87.250.250.1🇷🇺 TELETECH87.250.224.0/19 Yandex network
PTRns3.yandex.ru
NSns4.yandex.ru
A2a02:6b8:0:1::1:1🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns4.yandex.ru
A77.88.21.1🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRns4.yandex.ru
MXmx.yandex.ru ⭐
A2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmxfront.stable.qloud-b.yandex.net
A77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRmxfront.stable.qloud-b.yandex.net
TXTv=spf1 redirect=_spf.yandex.net
TXTyandex-verification: bee56b4396205cc2
TXTgoogle-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk
TXTmailru-verification: de5e58bac797a76d
SOAns3.yandex.rusysadmin@yandex.ru serial=1782730996

codeguide.ru

DNSSEC⚠️ Not signed
A77.223.98.188🇷🇺 SELECTEL-MSK77.223.96.0/22 Selectel Route Object
NSdns1.yandex.net ⭐
NSdns2.yandex.net
MXmx.yandex.net ⭐
TXTv=spf1 redirect=_spf.yandex.net
SOAdns1.yandex.netdns-hosting@yandex.ru serial=17

Previously MX for

codeguide.ru

Same first word

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DNS History

3 records (1 active, 2 former)

20162017201820192020202120222023202420252026A217.12.210.2395.34.183.49CNAMEdomain.mail.yandex.net
○A217.12.210.2392015-12-05 → 2016-07-18 · 5 obs
○ 2015-08-10 15:19:46
● 2015-12-05 00:50:10
● 2016-07-18 14:20:30
○ 2026-04-24 08:10:08
○ 2026-06-29 11:25:36
○A5.34.183.492015-08-10 → 2015-08-10 · 3 obs
● 2015-08-10 15:19:46
○ 2015-12-05 00:50:10
○ 2026-06-29 11:25:36
●CNAMEdomain.mail.yandex.net2026-04-24 → 2026-06-29 · 2 obs
● 2026-04-24 08:10:08
● 2026-06-29 11:25:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...-
codeguide.rudns1.yandex.net, dns2.yandex.net-

✅ Authoritative Response

Server:93.158.134.213

NS records: dns1.yandex.net, dns2.yandex.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codeguide.ru (unsigned zone)

⏱️ Timing

Total: 1144ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1domain.mail.yandex.net

Analysis

IP Addresses

mail.codeguide.ru has two IP addresses: 77.88.21.37 and 2a02:6b8::a4

tempkorea.com, mail.technodreamscreation.com, mail.yandex.by plus two other host names have IP numbers in common with mail.codeguide.ru.

Name Servers

Two name servers handle the delegation for mail.codeguide.ru: ns3.yandex.ru and ns4.yandex.ru.

The name server configuration of mail.codeguide.ru is shared with other domains, for instance tv.yandex.kz, browser.yandex.com, shedevrus.ru and two others.

mail.codeguide.ru shares at least some of its name servers with domains including mon.yandex.net, net.yandex.net and qloud.yandex.net

These name servers tend to be deployed in combination with the name servers ns5.yandex.ru and ns6.yandex.ru.

ns3.yandex.ru and ns4.yandex.ru both carry two IP addresses. The A records for ns3.yandex.ru are 87.250.250.1 and 2a02:6b8::1001; the A records for ns4.yandex.ru are 77.88.21.1 and 2a02:6b8:0:1::1:1.

Mail Servers

mail.codeguide.ru uses one mail server — mx.yandex.ru.

The mail server setup of mail.codeguide.ru matches that of other domains such as ib.by, vip-dom.com, autosupirkimas24h.lt and two others.

At least some of the mail servers used by mail.codeguide.ru are shared with other domains: 7ba.ru, lawyer.ua, eyekraft.ru and two others among them.

mx.yandex.ru directs to two IP numbers, 77.88.21.249 and 2a02:6b8::311.