expert.study - dns.ninja
expert.study
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.191.197.26🇷🇺 ESERVER185.191.197.0/24 MAXHOST network in eServer.ru | ||||||
| NS | ns1.ihc.ru ⭐ | ||||||
| A | 2a03:c980:beef:6002:46:254:23:52🇷🇺 EUROBYTE2a03:c980:beef::/48 | ||||||
| PTR | ns1.ihc.ru | ||||||
| A | 46.254.23.52🇷🇺 EUROBYTE46.254.23.0/24 | ||||||
| PTR | ns1.ihc.ru | ||||||
| NS | ns2.ihc.ru | ||||||
| A | 2001:41d0:1008:2c3b::1🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | ns2.ihc.ru | ||||||
| A | 46.254.22.38🇷🇺 EUROBYTE46.254.22.0/24 | ||||||
| PTR | ns1.ihc.ru | ||||||
| A | 91.121.54.18🇫🇷 OVH91.121.0.0/16 ISP Paris, France | ||||||
| PTR | ns2.ihc.ru | ||||||
| MX | mail.expert.study ⭐ | ||||||
| A | 185.191.197.26🇷🇺 ESERVER185.191.197.0/24 MAXHOST network in eServer.ru | ||||||
| SOA | ns1.ihc.ruinfo@ihc.ru 2020-01-17 #1 | ||||||
study
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.study ⭐ | ||||||
| NS | b.nic.study | ||||||
| NS | c.nic.study | ||||||
| NS | x.nic.study | ||||||
| NS | y.nic.study | ||||||
| NS | z.nic.study | ||||||
| SOA | a.nic.studyadmin@tldns.godaddy serial=1782677423 | ||||||
Subdomains
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.expert.study2020-01-27 → 2026-06-29 · 2 obs
● 2026-06-29 01:06:22
●A185.191.197.262020-01-27 → 2026-06-29 · 2 obs
● 2026-06-29 01:06:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | a.nic.study, b.nic.study, c.nic.study, x.nic.study... | 12 records |
| expert.study | ns2.ihc.ru, ns1.ihc.ru | - |
✅ Authoritative Response
Server:91.121.54.18
NS records: ns2.ihc.ru, ns1.ihc.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for expert.study (unsigned zone)
⏱️ Timing
Total: 983ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.191.197.26 |
| NS | 2 | ns2.ihc.ru, ns1.ihc.ru |
| MX | 1 | mail.expert.study (pri: 10) |
| SOA | 1 | ns1.ihc.ru info.ihc.ru |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.study, b.nic.study, c.nic.study...)
Analysis
Hierarchy
mail.expert.study and www.expert.study each fall under expert.study as their parent domain.
IP Addresses
expert.study resolves to just one IP address, 185.191.197.26.
Additional host names — including www.expert.study and mail.expert.study — share IP numbers with expert.study.
Name Servers
DNS delegation for expert.study points to two name servers: ns1.ihc.ru and ns2.ihc.ru.
expert.study shares its NS records with other domains, for example irk.clinic, glavsoft.org, www.allcomphelp.ru and two others.
Hostnames that map to three IP numbers:
ns2.ihc.ru has IP addresses 46.254.22.38, 91.121.54.18 and 2001:41d0:1008:2c3b::1.
Host names that have two IP addresses:
ns1.ihc.ru has two IP addresses: 46.254.23.52 and 2a03:c980:beef:6002:46:254:23:52.
Mail Servers
The sole mail server for expert.study is mail.expert.study.
mail.expert.study has exactly one IP number: 185.191.197.26.