kurspr.ru - robtex.com
kurspr.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.112.35.74🇷🇺 BIGWEB-AS217.112.35.0/24 | ||||||
| PTR | v75-u.valuehost.ru | ||||||
| NS | ns1.valuehost.ru ⭐ | ||||||
| A | 217.112.42.27🇷🇺 L7GUARD-AS217.112.42.0/23 VALUEHOST MSK 4 | ||||||
| PTR | ns1.valuehost.ru | ||||||
| NS | ns2.valuehost.ru | ||||||
| A | 217.112.37.10🇷🇺 L7GUARD-AS217.112.36.0/23 BIGWEB.HOST | ||||||
| PTR | ns2.valuehost.ru | ||||||
| NS | ns3.valuehost.ru ⚠️ Not in parent delegation | ||||||
| A | 217.112.37.28🇷🇺 L7GUARD-AS217.112.36.0/23 BIGWEB.HOST | ||||||
| PTR | ns3.valuehost.ru | ||||||
| MX | mx25.valuehost.ru ⭐ | ||||||
| A | 217.112.35.101🇷🇺 BIGWEB-AS217.112.35.0/24 | ||||||
| PTR | mx25.valuehost.ru | ||||||
| SOA | ns1.valuehost.runoc@valuehost.ru 2018-01-19 #6 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | c.tld-servers.ru | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4069798 | ||||||
Same first word
kurspr.ru |
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.valuehost.ru2015-08-14 → 2026-07-30 · 2 obs
● 2026-07-30 03:17:12
●NSns2.valuehost.ru2015-08-14 → 2026-07-30 · 2 obs
● 2026-07-30 03:17:12
●NSns3.valuehost.ru2015-08-14 → 2026-07-30 · 2 obs
● 2026-07-30 03:17:12
○MXmx22.valuehost.ru2015-08-14 → 2017-04-20 · 4 obs
● 2017-04-20 06:53:40
○ 2026-02-27 00:58:00
○ 2026-07-30 03:17:12
●MXmx25.valuehost.ru2026-02-27 → 2026-07-30 · 3 obs
● 2026-02-27 00:58:00
● 2026-07-30 03:17:12
●A217.112.35.742015-08-14 → 2026-07-30 · 2 obs
● 2026-07-30 03:17:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | c.tld-servers.ru, a.dns.ripn.net, e.dns.ripn.net, f.dns.ripn.net... | - |
| kurspr.ru | ns1.valuehost.ru, ns2.valuehost.ru | 2 records |
✅ Authoritative Response
Server:217.112.42.27
NS records: ns1.valuehost.ru, ns2.valuehost.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kurspr.ru (unsigned zone)
⏱️ Timing
Total: 663ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.112.35.74 |
| NS | 3 | ns3.valuehost.ru, ns1.valuehost.ru... |
| MX | 1 | mx25.valuehost.ru (pri: 100) |
| SOA | 1 | ns1.valuehost.ru noc.valuehost.ru |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.valuehost.ru, ns1.valuehost.ru)
Analysis
IP Addresses
kurspr.ru directs to one IP number, which is 217.112.35.74.
Among the host names that share IP numbers with kurspr.ru are tangostudio.ru, www.hisd.ru, arthic.ru and two others.
Name Servers
DNS for kurspr.ru is handled by three authoritative name servers: ns1.valuehost.ru, ns2.valuehost.ru and ns3.valuehost.ru.
kurspr.ru has at least partial name server overlap with other domains, such as cfe-rpg.ru, pellaship.ru, org69.ru and two others.
It is common to see these name servers used together with name servers ns1.valuehost.com and ns2.valuehost.com.
ns1.valuehost.ru, ns2.valuehost.ru and ns3.valuehost.ru all have one IP address each — ns1.valuehost.ru directs to 217.112.42.27, ns2.valuehost.ru directs to 217.112.37.10 and ns3.valuehost.ru directs to 217.112.37.28.
Mail Servers
kurspr.ru routes its mail through a single mail server, mx25.valuehost.ru.
kurspr.ru has the same mail server arrangement as a number of other domains, for example vozone.ru, rolt.ru, rus-kon.ru and two more.
kurspr.ru has mail servers in common with other domains — for example sevva.ru, dia.kg and shabala.ru.
mx25.valuehost.ru has exactly one IP number: 217.112.35.101.