1sb.su - robtex.com
1sb.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 82.146.51.3🇷🇺 RU-JSCIOT82.146.50.0/23 | ||||||
| PTR | mail.essenexpert.ru | ||||||
| NS | ns1.timeweb.ru ⭐ | ||||||
| A | 2a03:6f04:dead:bee::1🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 85.193.93.93🇵🇱 TimeWeb-AS85.193.93.0/24 | ||||||
| PTR | ns1.timeweb.ru | ||||||
| NS | ns2.timeweb.ru | ||||||
| A | 2a03:6f04:dead:bee::2🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 85.193.93.85🇵🇱 TimeWeb-AS85.193.93.0/24 | ||||||
| PTR | ns2.timeweb.ru | ||||||
| NS | ns3.timeweb.org | ||||||
| A | 2a03:6f07:4::2🇷🇺 TimeWeb-AS2a03:6f00::/29 | ||||||
| A | 217.78.234.130🇷🇺 TimeWeb-AS217.78.234.0/24 | ||||||
| PTR | ip-217-78-234-130.defastlink.net | ||||||
| NS | ns4.timeweb.org | ||||||
| A | 2a00:65e0:6:5:232a::2🇷🇺 RETNRU-SPB-AS2a00:65e0::/32 CJSC "RetnNet" | ||||||
| A | 139.45.249.139🇷🇺 RETNRU-SPB-AS139.45.248.0/21 RETN-SPB | ||||||
| PTR | gw-139.45.249.139-rt1.km.spb.retn.ru | ||||||
| MX | mail.1sb.su ⭐ | ||||||
| A | 92.255.105.43🇷🇺 TimeWeb-AS92.255.105.0/24 | ||||||
| PTR | mail.1sb.su | ||||||
| TXT | v=spf1 mx a:mail.1sb.su ~all | ||||||
| SOA | ns1.timeweb.rudns@timeweb.ru serial=2025053323 | ||||||
su
| 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=650208459 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1.timeweb.ru2026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
●NSns2.timeweb.ru2026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
●NSns3.timeweb.org2026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
●NSns4.timeweb.org2026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
●MXmail.1sb.su2026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
●A82.146.51.32026-02-25 → 2026-03-22 · 2 obs
● 2026-03-22 20:13:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | 10 records |
| 1sb.su | ns1.timeweb.ru, ns3.timeweb.org, ns2.timeweb.ru, ns4.timeweb.org | - |
✅ Authoritative Response
Server: 139.45.249.139
NS records: ns1.timeweb.ru, ns3.timeweb.org, ns2.timeweb.ru, ns4.timeweb.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 1sb.su (unsigned zone)
⏱️ Timing
Total: 1343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.146.51.3 |
| NS | 4 | ns1.timeweb.ru, ns3.timeweb.org... |
| MX | 1 | mail.1sb.su (pri: 10) |
| TXT | 1 | v=spf1 mx a:mail.1sb.su ~all |
| SOA | 1 | ns1.timeweb.ru dns.timeweb.ru |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net...)
Analysis
IP Addresses
1sb.su resolves to a single IP: 82.146.51.3.
Name Servers
1sb.su is delegated to four name servers: ns3.timeweb.org, ns4.timeweb.org, ns1.timeweb.ru and ns2.timeweb.ru.
1sb.su shares some name servers with other domains, for example dar-box.ru, 147.107.53.92.in-addr.arpa, 121.215.129.5.in-addr.arpa, korolev-gkh.ru and gothictop.ru.
Host names with two IP numbers
Two IPs per host:
ns3.timeweb.org points to 2a03:6f07:4::2 and 217.78.234.130
ns4.timeweb.org points to 2a00:65e0:6:5:232a::2 and 139.45.249.139
ns1.timeweb.ru points to 2a03:6f04:dead:bee::1 and 85.193.93.93
ns2.timeweb.ru points to 2a03:6f04:dead:bee::2 and 85.193.93.85
Mail Servers
1sb.su is handled by a single mail server, mail.1sb.su.
Host name mail.1sb.su points to IP 92.255.105.43.