is4b.ru - robtex.com
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is4b.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 77.221.130.3🇷🇺 RUSONYX-AS | ||||||
| PTR | plesk08.infobox.ru | ||||||
| NS | ns1.rsnx.ru ⭐ | ||||||
| A | 89.253.252.13🇷🇺 RUSONYX-AS | ||||||
| PTR | ns1.rsnx.ru | ||||||
| NS | ns1.infobox.org | ||||||
| A | 89.253.252.13🇷🇺 RUSONYX-AS | ||||||
| PTR | ns1.rsnx.ru | ||||||
| NS | ns2.infobox.org | ||||||
| A | 89.253.252.15🇷🇺 RUSONYX-AS | ||||||
| PTR | ns2.rsnx.ru | ||||||
| NS | ns3.infobox.org | ||||||
| A | 89.253.252.13🇷🇺 RUSONYX-AS | ||||||
| PTR | ns1.rsnx.ru | ||||||
| NS | ns4.infobox.org | ||||||
| A | 89.253.252.15🇷🇺 RUSONYX-AS | ||||||
| PTR | ns2.rsnx.ru | ||||||
| MX | mx.yandex.ru(20) | ||||||
| A | 2a02:6b8::311🇷🇺 TELETECH | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| A | 77.88.21.249🇷🇺 TELETECH | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| SOA | ns1.rsnx.rualexeev@is4b.ru 2022-05-05 #2 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4067789 | ||||||
Same first word
Similar names
ibs4.com |
bs4i.com |
4ibs.com |
bis4.com |
4bis.es |
4ibs.co.uk |
bis4.de |
4bis.com.br |
4bsi.com |
4bis.com |
bis4.me |
4bis.net |
i4sb.com |
sbi4.com |
s4bi.com |
4sbi.com |
b4si.com |
si4b.com |
4bis.fr |
4bis.nl |
DNS History
7 records (7 active, 0 former)
●NSns1.infobox.org2015-06-17 → 2026-02-15 · 2 obs
● 2026-02-15 19:19:18
●NSns1.rsnx.ru2026-02-14 → 2026-02-15 · 3 obs
● 2026-02-14 16:48:42
● 2026-02-15 19:19:18
●NSns2.infobox.org2015-06-17 → 2026-02-15 · 2 obs
● 2026-02-15 19:19:18
●NSns3.infobox.org2015-06-17 → 2026-02-15 · 2 obs
● 2026-02-15 19:19:18
●NSns4.infobox.org2015-06-17 → 2026-02-15 · 2 obs
● 2026-02-15 19:19:18
●A77.221.130.32015-06-17 → 2026-02-15 · 2 obs
● 2026-02-15 19:19:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | e.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net... | - |
| is4b.ru | ns1.infobox.org, ns2.infobox.org, ns3.infobox.org, ns4.infobox.org | - |
✅ Authoritative Response
Server: 89.253.252.13
NS records: ns1.infobox.org, ns2.infobox.org, ns3.infobox.org, ns4.infobox.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for is4b.ru (unsigned zone)
⏱️ Timing
Total: 1646ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.221.130.3 |
| NS | 4 | ns3.infobox.org, ns1.infobox.org... |
| MX | 2 | mx.yandex.ru (pri: 10), mx.yandex.ru (pri: 20) |
| SOA | 1 | ns1.rsnx.ru alexeev.is4b.ru |
AI analysis
is4b.ru resolves to one IP number: 77.221.130.3.
Other host names, for instance www.belmebspb.ru, neocom.spb.ru, hkom.ru, pogudin.ru and tehnoton.ru share IP numbers with is4b.ru.
is4b.ru is delegated to five name servers: ns1.infobox.org, ns2.infobox.org, ns3.infobox.org, ns4.infobox.org and ns1.rsnx.ru.
is4b.ru at least partially shares name servers with other domains, including 1c-a.ru, i-viator.ru, ooopbr.ru, malt-orden.info and fitpro.ru.
these name servers are commonly used alongside ns2.rsnx.ru, ns1.infobox.ru, ns2.infobox.ru, dns1.zenon.net, dns2.zenon.net, ns3.infobox.ru and ns4.infobox.ru.
Host names with one IP number
ns1.infobox.org points to 89.253.252.13.
ns2.infobox.org points to 89.253.252.15.
ns3.infobox.org points to 89.253.252.13.
ns4.infobox.org points to 89.253.252.15.
ns1.rsnx.ru points to 89.253.252.13.
Host names that point to 89.253.252.13: ns1.infobox.org, ns3.infobox.org and ns1.rsnx.ru.
Host names that point to 89.253.252.15: ns2.infobox.org and ns4.infobox.org.
A single mail server handles is4b.ru, mx.yandex.ru.
is4b.ru shares the same mail server setup as other domains, for instance mitrix.ru, eventpartners.ru, kukarino.ru, sannur.ru and avtolendooo.ru.
is4b.ru shares at least some mail servers with other domains, for example blesk-k.ru, mkad78.ru, edw.spb.ru, prom1.kz and pateroclinic.ru.
These mail servers are often used together with the mail servers mx.yandex.net.
The host name mx.yandex.ru resolves to two IP numbers: 2a02:6b8::311 and 77.88.21.249.