ctr.su - robtex.com
ctr.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.132.58.137🇦🇺 CLODO91.132.56.0/22 | ||||||
| PTR | blonskiy.org | ||||||
| NS | blonskiy.org ⭐ | ||||||
| A | 91.132.58.137🇦🇺 CLODO91.132.56.0/22 | ||||||
| PTR | blonskiy.org | ||||||
| NS | ns1.firstvds.ru | ||||||
| A | 2a01:230:2:74::3🇷🇺 RU-JSCIOT2a01:230:2::/48 | ||||||
| A | 82.146.43.2🇷🇺 RU-JSCIOT82.146.40.0/21 | ||||||
| PTR | ns1.firstvds.ru | ||||||
| NS | ns2.firstvds.ru | ||||||
| A | 2a01:230:2:75::3🇷🇺 RU-JSCIOT2a01:230:2::/48 | ||||||
| A | 94.250.248.160🇷🇺 RU-JSCIOT94.250.248.0/23 | ||||||
| PTR | ns2.firstvds.ru | ||||||
| MX | mail.ctr.su(20) | ||||||
| A | 91.132.58.137🇦🇺 CLODO91.132.56.0/22 | ||||||
| PTR | blonskiy.org | ||||||
| TXT | v=spf1 ip4:91.132.58.137 a mx ~all | ||||||
| SOA | blonskiy.orgroot@blonskiy.org 2026-02-10 #6 | ||||||
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=650209042 | ||||||
Subdomains
mail.ctr.su |
Same first word
Similar names
DNS History
18 records (5 active, 13 former)
●NSblonskiy.org2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 16:40:04
● 2026-05-09 23:27:56
●NSns1.firstvds.ru2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 16:40:04
● 2026-05-09 23:27:56
○NSns1.spaceweb.ru2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
●NSns2.firstvds.ru2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 16:40:04
● 2026-05-09 23:27:56
○NSns2.spaceweb.ru2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
○NSns3.spaceweb.pro2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
○NSns4.spaceweb.pro2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
●MXmail.ctr.su2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 16:40:04
● 2026-05-09 23:27:56
○MXmx1.spaceweb.ru2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
○MXmx2.spaceweb.ru2015-05-27 → 2021-01-07 · 4 obs
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
○A77.222.40.1042015-12-29 → 2021-01-07 · 5 obs
● 2015-12-29 00:16:02
● 2021-01-07 13:43:54
○ 2026-02-18 16:40:04
○ 2026-05-09 23:27:56
○A77.222.42.1042015-05-27 → 2015-10-13 · 4 obs
● 2015-10-13 22:54:06
○ 2015-12-29 00:16:02
○ 2026-05-09 23:27:56
○A81.177.135.1022026-02-18 → 2026-05-09 · 2 obs
○ 2026-05-09 23:27:56
●A91.132.58.1372026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 16:40:04
● 2026-05-09 23:27:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| ctr.su | ns1.firstvds.ru, ns2.firstvds.ru | - |
✅ Authoritative Response
Server:82.146.43.2
NS records: ns1.firstvds.ru, ns2.firstvds.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctr.su (unsigned zone)
⏱️ Timing
Total: 1451ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.132.58.137 |
| NS | 2 | ns1.firstvds.ru, ns2.firstvds.ru |
| MX | 2 | mail.ctr.su (pri: 20), mail.ctr.su (pri: 10) |
| TXT | 1 | v=spf1 ip4:91.132.58.137 a mx ~all |
| SOA | 1 | blonskiy.org root.blonskiy.org |
Analysis
Hierarchy
ctr.su is a parent of mail.ctr.su.
IP Addresses
ctr.su points to a single IP number: 91.132.58.137.
Other host names, for instance mail.1wm.org, miragro.ru, mail.mem6.com, mem6.com and mail.blonskiy.org share IP numbers with ctr.su.
Name Servers
The delegation for ctr.su is handled by three name servers: blonskiy.org, ns1.firstvds.ru and ns2.firstvds.ru.
ctr.su at least partially shares name servers with other domains, for instance u5o.ru, bdsm-people-ru.ru, serafimdev.com, xn--80ads7adgbi.xn--p1ai and rmvoz.ru.
These name servers are commonly used with firstvds.ru, intai.ru, dommainer151025.ru, ns1.fasthostvds.com, ns2.fasthostvds.com and ns3.firstvds.ru.
Host names with two IP numbers:
ns1.firstvds.ru points to: 2a01:230:2:74::3 and 82.146.43.2
ns2.firstvds.ru points to: 2a01:230:2:75::3 and 94.250.248.160
Host names with one IP number:
blonskiy.org points to: 91.132.58.137
Mail Servers
ctr.su is handled by a single mail server, mail.ctr.su.
mail.ctr.su points to a single IP: 91.132.58.137.