chicagobooth.ru - robtex.com
chicagobooth.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 198.50.252.64🇨🇦 OVH198.50.128.0/17 Hosting route | ||||||
| PTR | ip64.ip-198-50-252.net | ||||||
| NS | ns1.instradns.com ⭐ | ||||||
| A | 75.2.6.34🇺🇸 Amazon75.2.0.0/20 | ||||||
| PTR | aef93cd39153ffbac.awsglobalaccelerator.com | ||||||
| NS | ns2.instradns.com | ||||||
| A | 75.2.85.37🇺🇸 Amazon75.2.80.0/20 | ||||||
| PTR | a9bf3e392db71e4d0.awsglobalaccelerator.com | ||||||
| NS | ns3.instradns.com | ||||||
| A | 99.83.188.20🇺🇸 Amazon99.83.176.0/20 | ||||||
| PTR | aef93cd39153ffbac.awsglobalaccelerator.com | ||||||
| MX | mail.chicagobooth.ru ⭐ | ||||||
| A | 66.70.178.74🇨🇦 OVH66.70.128.0/17 Hosting route | ||||||
| PTR | ns547779.ip-66-70-178.net | ||||||
| SOA | ns1.instradns.comroot@instra.com 2009-08-06 #1 | ||||||
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=4070008 | ||||||
Subdomains
mail.chicagobooth.ru |
Same first word
chicagobooth.asia |
chicagobooth.ru |
chicagobooth.cn |
chicagobooth.com |
chicagobooth.co.in |
chicagobooth.jp |
chicagobooth.edu |
chicagobooth.biz |
chicagobooth.info |
chicagobooth.it |
DNS History
6 records (5 active, 1 former)
●NSns1.instradns.com2015-06-11 → 2026-08-16 · 2 obs
● 2026-08-16 12:55:18
●NSns2.instradns.com2015-06-11 → 2026-08-16 · 2 obs
● 2026-08-16 12:55:18
●NSns3.instradns.com2015-06-11 → 2026-08-16 · 2 obs
● 2026-08-16 12:55:18
●MXmail.chicagobooth.ru2015-06-11 → 2026-08-16 · 2 obs
● 2026-08-16 12:55:18
○A184.95.38.1962015-06-11 → 2017-11-11 · 4 obs
● 2017-11-11 02:24:08
○ 2026-03-26 02:26:12
○ 2026-08-16 12:55:18
●A198.50.252.642026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 02:26:12
● 2026-08-16 12:55:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net... | - |
| chicagobooth.ru | ns3.instradns.com, ns2.instradns.com, ns1.instradns.com | - |
✅ Authoritative Response
Server:75.2.6.34
NS records: ns3.instradns.com, ns2.instradns.com, ns1.instradns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chicagobooth.ru (unsigned zone)
⏱️ Timing
Total: 567ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 198.50.252.64 |
| NS | 3 | ns2.instradns.com, ns1.instradns.com... |
| MX | 1 | mail.chicagobooth.ru (pri: 10) |
| SOA | 1 | ns1.instradns.com root.instra.com |
Analysis
Hierarchy
chicagobooth.ru is a parent domain of mail.chicagobooth.ru.
IP Addresses
chicagobooth.ru has exactly one IP address — 198.50.252.64.
zipcar.com.sg, tardrives.net, snazibar.com plus two other host names have IP numbers in common with chicagobooth.ru.
Name Servers
DNS for chicagobooth.ru is handled by three authoritative name servers: ns1.instradns.com, ns2.instradns.com and ns3.instradns.com.
chicagobooth.ru shares at least some of its name servers with other domains, including league.care, althani.dk, kdtiming.com and two others.
These name servers are frequently seen alongside ns1.hostingww.com, ns2.hostingww.com, ns3.hostingww.com and 3 other name servers.
ns1.instradns.com, ns2.instradns.com and ns3.instradns.com all have one IP address each — ns1.instradns.com directs to 75.2.6.34, ns2.instradns.com directs to 75.2.85.37 and ns3.instradns.com directs to 99.83.188.20.
Mail Servers
chicagobooth.ru uses one mail server — mail.chicagobooth.ru.
mail.chicagobooth.ru has exactly one IP number: 66.70.178.74.