a4-tech.ru - robtex.com
a4-tech.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.26.122.20🇷🇺 HOSTLAND185.26.122.0/24 | ||||||
| PTR | serv20-26.hostland.ru | ||||||
| NS | ns3.hostland.ru ⭐ | ||||||
| A | 81.95.18.218🇷🇺 MTTELECOM-AS81.95.16.0/20 MTTELECOM-NETWORK | ||||||
| A | 185.22.183.98🇷🇺 RETNRU-SPB-AS185.22.180.0/22 CJSC "RetnNet" | ||||||
| NS | ns.hostland.ru | ||||||
| A | 185.26.122.3🇷🇺 HOSTLAND185.26.122.0/24 | ||||||
| PTR | serv3-26.hostland.ru | ||||||
| A | 185.26.123.231🇷🇺 HOSTLAND185.26.123.0/24 | ||||||
| PTR | smtp1.hostland.ru | ||||||
| MX | mail.a4-tech.ru ⭐ | ||||||
| A | 185.26.123.232🇷🇺 HOSTLAND185.26.123.0/24 | ||||||
| PTR | sendmail.hostland.ru | ||||||
| SOA | ns.hostland.rusupport@hostland.ru serial=100000000 | ||||||
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=4068517 | ||||||
Subdomains
Same first word
a4-tech.ru |
DNS History
7 records (4 active, 3 former)
●NSns.hostland.ru2026-03-16 → 2026-04-15 · 3 obs
● 2026-03-16 03:49:28
● 2026-04-15 00:00:26
○NSns1.a4-tech.ru2015-04-25 → 2017-03-18 · 4 obs
● 2017-03-18 02:24:02
○ 2026-03-16 03:49:28
○ 2026-04-15 00:00:26
○NSns2.a4-tech.ru2015-04-25 → 2017-03-18 · 4 obs
● 2017-03-18 02:24:02
○ 2026-03-16 03:49:28
○ 2026-04-15 00:00:26
●NSns3.hostland.ru2026-03-16 → 2026-04-15 · 3 obs
● 2026-03-16 03:49:28
● 2026-04-15 00:00:26
●MXmail.a4-tech.ru2026-03-16 → 2026-04-15 · 2 obs
● 2026-04-15 00:00:26
●A185.26.122.202026-03-16 → 2026-04-15 · 3 obs
● 2026-03-16 03:49:28
● 2026-04-15 00:00:26
○A95.47.182.1412015-04-25 → 2017-03-18 · 4 obs
● 2017-03-18 02:24:02
○ 2026-03-16 03:49:28
○ 2026-04-15 00:00:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| a4-tech.ru | ns.hostland.ru, ns3.hostland.ru | 4 records |
✅ Authoritative Response
Server:185.22.183.98
NS records: ns.hostland.ru, ns3.hostland.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a4-tech.ru (unsigned zone)
⏱️ Timing
Total: 897ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.26.122.20 |
| NS | 2 | ns3.hostland.ru, ns.hostland.ru |
| MX | 1 | mail.a4-tech.ru (pri: 10) |
| SOA | 1 | ns.hostland.ru support.hostland.ru |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns3.hostland.ru, ns3.hostland.ru, ns.hostland.ru...)
Analysis
Hierarchy
a4-tech.ru is a parent of ns2.a4-tech.ru, ns1.a4-tech.ru and mail.a4-tech.ru.
IP Addresses
a4-tech.ru points to a single IP address: 185.26.122.20.
Other host names such as plitkamsk.ru, lumixx-alt.com, blizmaster.by, titanavto.by and kupe21.ru share IP numbers with a4-tech.ru.
Name Servers
a4-tech.ru is delegated to two name servers: ns3.hostland.ru and ns.hostland.ru.
a4-tech.ru uses the same name server setup as other domains, including bookworms.ru, buhnk.ru, nedrakam.ru, termosmart.com and galvanostok.ru.
Host names with two IP numbers:
ns3.hostland.ru points to 81.95.18.218 and 185.22.183.98.
ns.hostland.ru points to 185.26.122.3 and 185.26.123.231.
Mail Servers
The mail server for a4-tech.ru is mail.a4-tech.ru.
Host mail.a4-tech.ru points to IP 185.26.123.232.