czechcenter.ru - robtex.com
czechcenter.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 90.189.192.100🇷🇺 ROSTELECOM-AS90.189.192.0/23 ROSTELECOM NETS Sibir RU-SIBNET-NETWORKS | ||||||
| PTR | hst2.sibnet.ru | ||||||
| NS | dns1.risp.ru ⭐ | ||||||
| A | 212.164.86.2🇷🇺 ROSTELECOM-AS212.164.0.0/16 Rostelecom networks | ||||||
| PTR | vhost3.risp.ru | ||||||
| NS | dns2.risp.ru | ||||||
| A | 90.189.192.100🇷🇺 ROSTELECOM-AS90.189.192.0/23 ROSTELECOM NETS Sibir RU-SIBNET-NETWORKS | ||||||
| PTR | hst2.sibnet.ru | ||||||
| MX | czechcenter.ru ⭐ | ||||||
| A | 90.189.192.100🇷🇺 ROSTELECOM-AS90.189.192.0/23 ROSTELECOM NETS Sibir RU-SIBNET-NETWORKS | ||||||
| PTR | hst2.sibnet.ru | ||||||
| TXT | v=spf1 +a +mx +ip4:90.189.192.100 +include:_spf.elasticemail.com -all | ||||||
| SOA | dns1.risp.ruhd@turbo.nsk.su 2026-05-07 #1 | ||||||
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=4068849 | ||||||
MX for
czechcenter.ru |
Subdomains
www.czechcenter.ru |
Same first word
czechcenter.ru |
czechcenter.org |
DNS History
8 records (4 active, 4 former)
●NSdns1.risp.ru2026-02-17 → 2026-05-12 · 3 obs
● 2026-02-17 02:10:14
● 2026-05-12 17:15:38
●NSdns2.risp.ru2026-02-17 → 2026-05-12 · 3 obs
● 2026-02-17 02:10:14
● 2026-05-12 17:15:38
○NSns01.r01.ru2015-08-20 → 2018-11-15 · 4 obs
● 2018-11-15 20:16:04
○ 2026-02-17 02:10:14
○ 2026-05-12 17:15:38
○NSns02.r01.ru2015-08-20 → 2018-11-15 · 4 obs
● 2018-11-15 20:16:04
○ 2026-02-17 02:10:14
○ 2026-05-12 17:15:38
○NSns03.r01.ru2015-08-20 → 2018-11-15 · 4 obs
● 2018-11-15 20:16:04
○ 2026-02-17 02:10:14
○ 2026-05-12 17:15:38
●MXczechcenter.ru2026-02-17 → 2026-05-12 · 2 obs
● 2026-05-12 17:15:38
○A31.177.94.902015-08-20 → 2018-11-15 · 4 obs
● 2018-11-15 20:16:04
○ 2026-02-17 02:10:14
○ 2026-05-12 17:15:38
●A90.189.192.1002026-02-17 → 2026-05-12 · 3 obs
● 2026-02-17 02:10:14
● 2026-05-12 17:15:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | b.dns.ripn.net, a.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net... | - |
| czechcenter.ru | dns1.risp.ru, dns2.risp.ru | - |
✅ Authoritative Response
Server:212.164.86.2
NS records: dns1.risp.ru, dns2.risp.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for czechcenter.ru (unsigned zone)
⏱️ Timing
Total: 5715ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 90.189.192.100 |
| NS | 2 | dns2.risp.ru, dns1.risp.ru |
| MX | 1 | czechcenter.ru (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:90.189.192.100 +inclu |
| SOA | 1 | dns1.risp.ru hd.turbo.nsk.su |
Analysis
Hierarchy
czechcenter.ru is the parent of www.czechcenter.ru.
Mail Server Role
czechcenter.ru is the mail server for czechcenter.ru.
IP Addresses
czechcenter.ru resolves to a single IP: 90.189.192.100.
Other host names, for instance lveplant.ru, techcen.ru, hst2.risp.ru, sibmatik.ru and betolex.org share IP numbers with czechcenter.ru.
Name Servers
czechcenter.ru has two name servers: dns1.risp.ru and dns2.risp.ru.
czechcenter.ru shares the same name server setup as other domains, for example mbt-sib.ru, itc-yar.ru, uspntur.ru, tfomsrh.ru and uk-lad.ru.
czechcenter.ru shares some name servers with other domains, for instance azav.net, minobr-altai.ru and erim.ru.
Host names with a single IP:
dns1.risp.ru points to 212.164.86.2
dns2.risp.ru points to 90.189.192.100
Mail Servers
One mail server handles czechcenter.ru.
Host name czechcenter.ru points to IP 90.189.192.100.