by-system.com - robtex.com
by-system.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:230:4:a13::2🇷🇺 RU-JSCIOT2a01:230:4::/48 | ||||||
| PTR | mail.by-system.com | ||||||
| A | 82.146.39.199🇷🇺 RU-JSCIOT82.146.38.0/23 | ||||||
| NS | ns1.by-system.com ⭐ | ||||||
| A | 2a01:230:4:a13::2🇷🇺 RU-JSCIOT2a01:230:4::/48 | ||||||
| PTR | mail.by-system.com | ||||||
| A | 82.146.39.199🇷🇺 RU-JSCIOT82.146.38.0/23 | ||||||
| PTR | ns1.by-system.com | ||||||
| NS | ns2.by-system.com | ||||||
| A | 2a01:230:2::25be🇷🇺 RU-JSCIOT2a01:230:2::/48 | ||||||
| PTR | ns2.by-system.com | ||||||
| A | 94.250.249.43🇷🇺 RU-JSCIOT94.250.248.0/23 | ||||||
| PTR | ns2.by-system.com | ||||||
| MX | mail.by-system.com ⭐ | ||||||
| A | 82.146.39.199🇷🇺 RU-JSCIOT82.146.38.0/23 | ||||||
| PTR | ns1.by-system.com | ||||||
| TXT | v=spf1 mx a ~all | ||||||
| TXT | google-site-verification=Mrf_qOPMfFsYx5aWgYCsRoXbrSQB3dLuxoXGqYzLvbM | ||||||
| SOA | ns1.by-system.cominfo@by-system.com 2025-10-20 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774529672 | ||||||
Subdomains
Same first word
by-system.com |
Similar names
DNS History
9 records (5 active, 4 former)
●NSns1.by-system.com2026-02-25 → 2026-03-26 · 3 obs
● 2026-02-25 22:07:48
● 2026-03-26 13:02:48
○NSns1.systems-nt.com2018-09-11 → 2018-09-11 · 3 obs
○ 2026-02-25 22:07:48
○ 2026-03-26 13:02:48
●NSns2.by-system.com2026-02-25 → 2026-03-26 · 3 obs
● 2026-02-25 22:07:48
● 2026-03-26 13:02:48
○NSns2.systems-nt.com2018-09-11 → 2018-09-11 · 3 obs
○ 2026-02-25 22:07:48
○ 2026-03-26 13:02:48
○NSsrv.gsystem.tj2018-09-11 → 2018-09-11 · 3 obs
○ 2026-02-25 22:07:48
○ 2026-03-26 13:02:48
●MXmail.by-system.com2018-09-11 → 2026-03-26 · 2 obs
● 2026-03-26 13:02:48
●A2a01:230:4:a13::22026-02-25 → 2026-03-26 · 3 obs
● 2026-02-25 22:07:48
● 2026-03-26 13:02:48
●A82.146.39.1992026-02-25 → 2026-03-26 · 3 obs
● 2026-02-25 22:07:48
● 2026-03-26 13:02:48
○A95.142.90.1312018-09-11 → 2018-09-11 · 3 obs
○ 2026-02-25 22:07:48
○ 2026-03-26 13:02:48
🔍 DNS Trace
Analysis
Hierarchy
by-system.com has ns1.by-system.com, mail.by-system.com and ns2.by-system.com as children.
IP Addresses
by-system.com points to two IP numbers: 2a01:230:4:a13::2 and 82.146.39.199.
Other host names such as ns1.by2l.com, ghost.tj, site.tj, ns1.by-system.com and mail.by-system.com share IPs with by-system.com.
Name Servers
Two name servers ns1.by-system.com and ns2.by-system.com handle the delegation for by-system.com.
The name server setup for by-system.com is the same as that used by other domains, for instance fardo.org, by2l.com, site.tj and xosting.pro.
by-system.com partially shares name servers with other domains, for example ghost.tj and yulchiev.ru.
These name servers are commonly used with ns1.yulchiev.ru and ns2.yulchiev.ru and ns2.by2l.com.
Host names with two IP numbers:
ns1.by-system.com points to 2a01:230:4:a13::2 and 82.146.39.199.
ns2.by-system.com points to 2a01:230:2::25be and 94.250.249.43.
Mail Servers
The mail.by-system.com mail server handles by-system.com.
mail.by-system.com points to a single IP number: 82.146.39.199.