mail.prokb.ru - robtex.com

mail.prokb.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
TXTgoogle-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk
TXTmailru-verification: de5e58bac797a76d
TXTv=spf1 redirect=_spf.yandex.net
TXTyandex-verification: bee56b4396205cc2
SOAns3.yandex.rusysadmin@yandex.ru serial=1778481467

prokb.ru

DNSSEC⚠️ Not signed
A46.174.89.211
NSns1.reg.ru ⭐
NSns2.reg.ru
MXmx.yandex.net ⭐
TXTv=spf1 redirect=_spf.yandex.net
SOAns1.reg.ruhostmaster@ns1.reg.ru serial=1766328292

Same first word

mail.stripper.jp
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mail.virtualuser.de
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DNS History

5 records (1 active, 4 former)

20162017201820192020202120222023202420252026NSns1.reg.runs2.reg.ruA2a03:6f00:1::5c35:768c87.249.4.251CNAMEdomain.mail.yandex.net
○NSns1.reg.ru2026-05-11 → 2026-05-11 · 1 obs
○ 2026-05-11 06:46:30
○NSns2.reg.ru2026-05-11 → 2026-05-11 · 1 obs
○ 2026-05-11 06:46:30
○A2a03:6f00:1::5c35:768c2015-06-18 → 2016-09-19 · 3 obs
● 2015-06-18 00:54:10
● 2016-09-19 05:35:26
○ 2026-05-11 06:46:30
○A87.249.4.2512015-06-18 → 2016-09-19 · 3 obs
● 2015-06-18 00:54:10
● 2016-09-19 05:35:26
○ 2026-05-11 06:46:30
●CNAMEdomain.mail.yandex.net2026-05-11 → 2026-05-11 · 1 obs
● 2026-05-11 06:46:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
prokb.runs1.reg.ru, ns2.reg.ru20 records

✅ Authoritative Response

Server:176.99.13.11

NS records: ns1.reg.ru, ns2.reg.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prokb.ru (unsigned zone)

⏱️ Timing

Total: 875ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1domain.mail.yandex.net

📌 Glue Records Collected

Total: 20

Out-of-bailiwick: 20 (ns1.reg.ru, ns1.reg.ru, ns1.reg.ru...)

Analysis

IP Addresses

mail.prokb.ru resolves to two IPs: 2a02:6b8::a4 and 77.88.21.37.

other host names for instance mail.yandex.md, ceer.by, tempkorea.com, mail.technodreamscreation.com and mail.yandex.by share IP numbers with mail.prokb.ru.

Name Servers

mail.prokb.ru is delegated to two name servers: ns3.yandex.ru and ns4.yandex.ru.

mail.prokb.ru shares the same name server setup as other domains, for example 102km.ru, 360.yandex, 183.158.93.in-addr.arpa, 144.140.37.in-addr.arpa and crt-acme-challenge.net.

mail.prokb.ru partially shares name servers with other domains, for instance market.yandex.net, techadmin.yandex.net and fog.yandex.ru.

These name servers are often used with ns5.yandex.ru and ns6.yandex.ru.

Host names with two IP numbers:

ns3.yandex.ru points to 2a02:6b8::1001 and 87.250.250.1

ns4.yandex.ru points to 2a02:6b8:0:1::1:1 and 77.88.21.1

Mail Servers

mail.prokb.ru is handled by a single mail server, mx.yandex.ru.

mail.prokb.ru shares the same mail server setup as other domains, for instance durmin.ru, j-arts.ru, otnosheniya24.ru, bsaa.info and onyxx.ru.

mail.prokb.ru shares mail servers with other domains at least partially, including semenasad.ru, maincare.ru, specmat.ru, meliorator.org and gorskiycityhotel.ru.

these mail servers are commonly used alongside mx.yandex.net.

Host mx.yandex.ru resolves to two IPs: 2a02:6b8::311 and 77.88.21.249.