mail.masterbuilder.ru - robtex.com

mail.masterbuilder.ru

DNSSEC⚠️ Not signed
A91.226.30.3🇷🇺 RTCOMM-AS91.226.30.0/24
NSn.i7.ru ⭐
A91.226.31.82🇷🇺 WORLDSTREAM-191.226.31.0/24
NSs.i7.ru
A91.226.30.3🇷🇺 RTCOMM-AS91.226.30.0/24
SOAn.i7.rudns@i7.ru 2014-12-16 #1

masterbuilder.ru

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:28ca🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:9d05🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.202Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.157.5🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdavina.ns.cloudflare.com ⭐
NStosana.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.40.202, 172.67.157.5
IPv62606:4700:3031::6815:28ca, 2606:4700:3034::ac43:9d05
SOAdavina.ns.cloudflare.comdns@cloudflare.com serial=2396254085
WOT: SAFE (61/100)
WOT: UNKNOWN (65/100)

Previously MX for

masterbuilder.ru

Same first word

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DNS History

4 records (3 active, 1 former)

20162017201820192020202120222023202420252026NSn.i7.rus.i7.ruA91.226.30.35.45.122.39
●NSn.i7.ru2026-03-27 → 2026-03-27 · 1 obs
● 2026-03-27 16:39:48
●NSs.i7.ru2026-03-27 → 2026-03-27 · 1 obs
● 2026-03-27 16:39:48
○A5.45.122.392015-07-20 → 2016-05-01 · 3 obs
● 2015-07-20 12:30:12
● 2016-05-01 02:59:58
○ 2026-03-27 16:39:48
●A91.226.30.32026-03-27 → 2026-03-27 · 2 obs
○ 2016-05-01 02:59:58
● 2026-03-27 16:39:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ruf.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...-
masterbuilder.rutosana.ns.cloudflare.com, davina.ns.cloudflare.com-
mail.masterbuilder.run.i7.ru, s.i7.ru-

✅ Authoritative Response

Server:91.226.30.3

NS records: n.i7.ru, s.i7.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterbuilder.ru (unsigned zone)

⏱️ Timing

Total: 931ms | Queries: -

📄 Records

TypeCountSample Data
A191.226.30.3
NS2s.i7.ru, n.i7.ru
SOA1s.i7.ru dns.i7.ru

Analysis

IP Addresses

mail.masterbuilder.ru points to a single IP number: 91.226.30.3.

Other host names, for instance findu.ru, subst.ru, mail.buro-pereezdov.ru, odinski.ru and c3gdlk.ru share IP numbers with mail.masterbuilder.ru.

Name Servers

Delegation for mail.masterbuilder.ru rests with two name servers, n.i7.ru and s.i7.ru.

mail.masterbuilder.ru shares the same name server setup as other domains, including www.kbcsm.ru, gs-pro.ru, mx.teplosferaspb.ru, mail.golutvinskayasloboda.ru and hu.www.la2-zone.ru.

mail.masterbuilder.ru at least partially shares name servers with other domains, for instance xn--80ad6aebnfi.xn--p1ai, alidada.ru, deir-samara.ru, lameliya.ru and shewolf.ru.

These name servers are commonly used alongside ns1.expired.ru, ns2.expired.ru, ns1.kuzbox.ru and ns2.kuzbox.ru.

Host names with one IP number: n.i7.ru points to 91.226.31.82; s.i7.ru points to 91.226.30.3.