ctfinf.ru - robtex.com
ctfinf.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 62.173.141.243🇷🇺 SPACENET-AS62.173.141.0/24 | ||||||
| PTR | examinf.ru | ||||||
| NS | dns1.planetahost.ru ⭐ | ||||||
| A | 85.93.128.22🇷🇺 SPACENET-AS85.93.128.0/24 | ||||||
| PTR | dns1.planetahost.ru | ||||||
| NS | dns2.planetahost.ru | ||||||
| A | 85.93.129.22🇷🇺 SPACENET-AS85.93.129.0/24 | ||||||
| MX | mail.ctfinf.ru ⭐ | ||||||
| A | 62.173.141.243🇷🇺 SPACENET-AS62.173.141.0/24 | ||||||
| PTR | examinf.ru | ||||||
| TXT | google-site-verification=CIkE85xJRou_BSa26JALFcJDXgPM9Athf3REn5YCr4s | ||||||
| SOA | dns1.planetahost.ruadmin@ctfinf.ru 2025-02-01 #2 | ||||||
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=4068488 | ||||||
Subdomains
mail.ctfinf.ru |
Same first word
ctfinf.ru |
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns1.planetahost.ru2026-03-01 → 2026-04-12 · 2 obs
● 2026-04-12 14:27:46
●NSdns2.planetahost.ru2026-03-01 → 2026-04-12 · 2 obs
● 2026-04-12 14:27:46
●MXmail.ctfinf.ru2026-03-01 → 2026-04-12 · 2 obs
● 2026-04-12 14:27:46
●A62.173.141.2432026-03-01 → 2026-04-12 · 2 obs
● 2026-04-12 14:27:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | d.dns.ripn.net, a.dns.ripn.net, e.dns.ripn.net, f.dns.ripn.net... | - |
| ctfinf.ru | dns1.planetahost.ru, dns2.planetahost.ru | 2 records |
✅ Authoritative Response
Server:62.173.149.230
NS records: dns1.planetahost.ru, dns2.planetahost.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctfinf.ru (unsigned zone)
⏱️ Timing
Total: 928ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 62.173.141.243 |
| NS | 2 | dns1.planetahost.ru, dns2.planetahost.ru |
| MX | 1 | mail.ctfinf.ru (pri: 10) |
| TXT | 1 | google-site-verification=CIkE85xJRou_BSa |
| SOA | 1 | dns1.planetahost.ru admin.ctfinf.ru |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.planetahost.ru, dns2.planetahost.ru)
Analysis
Hierarchy
ctfinf.ru is the parent of mail.ctfinf.ru.
IP Addresses
ctfinf.ru resolves to one IP number: 62.173.141.243.
Other host names such as mail.ctfinf.ru and examinf.ru share IP numbers with ctfinf.ru.
Name Servers
ctfinf.ru is delegated to two name servers dns1.planetahost.ru and dns2.planetahost.ru.
ctfinf.ru shares the same name server setup as other domains, for instance cheffrau.ru, omichka.ru, arseniy.net, lab-medlab.ru and 133.173.62.in-addr.arpa.
ctfinf.ru at least partially shares name servers with other domains, for instance newmail.pro, xn--80agpuv.xn--p1ai, notatorg.ru, liaf.ru and donloza.ru.
these name servers are often used together with planetahost.ru, dns3.planetahost.ru, ns1.icosmos.ru and ns2.icosmos.ru.
Host names with one IP number:
dns1.planetahost.ru points to 85.93.128.22
dns2.planetahost.ru points to 85.93.129.22
Mail Servers
ctfinf.ru is handled by a single mail server, mail.ctfinf.ru.
mail.ctfinf.ru resolves to IP 62.173.141.243.