st-tools.ru - robtex.com

st-tools.ru

DNSSEC⚠️ Not signed
A87.242.108.100🇷🇺 SELECTEL-MSK87.242.108.0/23 Selectel Route Object
PTRst-tools.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
MXemx.mail.ru ⭐
A94.100.180.180🇷🇺 VK-AS94.100.176.0/20 Moscow region
PTRemx.mail.ru
A217.69.139.180🇷🇺 VK-AS217.69.128.0/20 Moscow region
PTRemx.mail.ru
TXTv=spf1 ip4:212.41.22.243 ip4:5.188.136.50 ip4:85.119.146.38 ip4:188.124.47.19...
TXTmailru-domain: XIAnYsvplJbbYB1i
TXTgoogle-site-verification=Xr4i6tF4nxwtXGtT45dKxsSY9K6QqnU_8cNEUF114Rg
SOAa.ns.selectel.rusupport@selectel.ru 2025-12-02 #1

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=4068277

PTR for

100.108.242.87.in-addr.arpa
50.136.188.5.in-addr.arpa

Same first word

st-tools.ru
st-tools.com.ua

Similar names

ts-tools.s3.amazonaws.com

DNS History

15 records (6 active, 9 former)

20162017201820192020202120222023202420252026NSa.ns.selectel.rub.ns.selectel.ruc.ns.selectel.rud.ns.selectel.rudns1.yandex.netdns2.yandex.netexpirepages-kiae-1.nic.ruexpirepages-kiae-2.nic.ruMXemx.mail.rumx.yandex.netnomail.nic.ruA87.242.108.100109.70.26.37194.85.61.76217.174.108.218
●NSa.ns.selectel.ru2026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32
●NSb.ns.selectel.ru2026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32
●NSc.ns.selectel.ru2026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32
●NSd.ns.selectel.ru2026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32
○NSdns1.yandex.net2015-08-05 → 2016-03-07 · 4 obs
● 2015-08-05 20:20:48
● 2016-03-07 03:19:00
○ 2016-07-02 21:33:22
○ 2026-03-26 02:50:32
○NSdns2.yandex.net2015-08-05 → 2016-03-07 · 4 obs
● 2015-08-05 20:20:48
● 2016-03-07 03:19:00
○ 2016-07-02 21:33:22
○ 2026-03-26 02:50:32
○NSexpirepages-kiae-1.nic.ru2016-07-02 → 2016-07-02 · 4 obs
○ 2016-03-07 03:19:00
● 2016-07-02 21:33:22
○ 2017-01-24 08:38:40
○ 2026-03-26 02:50:32
○NSexpirepages-kiae-2.nic.ru2016-07-02 → 2016-07-02 · 4 obs
○ 2016-03-07 03:19:00
● 2016-07-02 21:33:22
○ 2017-01-24 08:38:40
○ 2026-03-26 02:50:32
●MXemx.mail.ru2026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32
○MXmx.yandex.net2015-08-05 → 2016-03-07 · 4 obs
● 2015-08-05 20:20:48
● 2016-03-07 03:19:00
○ 2016-07-02 21:33:22
○ 2026-03-26 02:50:32
○MXnomail.nic.ru2016-07-02 → 2016-07-02 · 4 obs
○ 2016-03-07 03:19:00
● 2016-07-02 21:33:22
○ 2017-01-24 08:38:40
○ 2026-03-26 02:50:32
○A109.70.26.372016-07-02 → 2016-07-02 · 4 obs
○ 2016-03-07 03:19:00
● 2016-07-02 21:33:22
○ 2017-01-24 08:38:40
○ 2026-03-26 02:50:32
○A194.85.61.762016-07-02 → 2016-07-02 · 4 obs
○ 2016-03-07 03:19:00
● 2016-07-02 21:33:22
○ 2017-01-24 08:38:40
○ 2026-03-26 02:50:32
○A217.174.108.2182015-08-05 → 2016-03-07 · 4 obs
● 2015-08-05 20:20:48
● 2016-03-07 03:19:00
○ 2016-07-02 21:33:22
○ 2026-03-26 02:50:32
●A87.242.108.1002026-03-11 → 2026-03-26 · 3 obs
○ 2017-01-24 08:38:40
● 2026-03-11 08:26:40
● 2026-03-26 02:50:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...-
st-tools.rua.ns.selectel.ru, c.ns.selectel.ru, b.ns.selectel.ru, d.ns.selectel.ru4 records

✅ Authoritative Response

Server:77.223.114.4

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for st-tools.ru (unsigned zone)

⏱️ Timing

Total: 773ms | Queries: -

📄 Records

TypeCountSample Data
A187.242.108.100
NS4b.ns.selectel.ru, a.ns.selectel.ru...
MX1emx.mail.ru (pri: 10)
TXT3v=spf1 ip4:212.41.22.243 ip4:5.188.136.5, mailru-domain: XIAnYsvplJbbYB1i...
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

st-tools.ru points to IP number: 87.242.108.100.

Name Servers

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

st-tools.ru at least partially shares name servers with other domains, for instance ksp66.ru, sourjpa.beer, canfire.ru, propiska-reg.ru and nii-onco.ru.

Host names with two IP numbers: 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.

Mail Servers

st-tools.ru is handled by a single mail server, emx.mail.ru.

The mail server setup for st-tools.ru matches that of other domains, for instance 5ochka.ru, firmagorod.ru, m-robotics.ru, profmagazin.ru and dicards.ru.

st-tools.ru shares at least partially some mail servers with other domains, including winonfire.com, bentonit.su, magda-t.ru, suitd.ru and allmotos.ru.

emx.mail.ru points to two IPs: 94.100.180.180 and 217.69.139.180.