optima.study - robtex.com
optima.study
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=1774267455 | ||||||
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSanita.ns.cloudflare.com2026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●NSpranab.ns.cloudflare.com2026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●MXoptima-study.mail.protection.outlook.com2026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●A104.21.37.1622026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●A172.67.210.1172026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●A2606:4700:3033::6815:25a22026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
●A2606:4700:3037::ac43:d2752026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 12:19:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | a.nic.study, b.nic.study, c.nic.study, x.nic.study... | 12 records |
| optima.study | pranab.ns.cloudflare.com, anita.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.38.82
NS records: pranab.ns.cloudflare.com, anita.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optima.study (unsigned zone)
⏱️ Timing
Total: 617ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.37.162, 172.67.210.117 |
| AAAA | 2 | 2606:4700:3033::6815:25a2, 2606:4700:3037::ac43:d275 |
| NS | 2 | anita.ns.cloudflare.com, pranab.ns.cloudflare.com |
| MX | 1 | optima-study.mail.protection.outlook.com |
| TXT | 4 | MS=ms32379877, esputnik-verification=RVNQX0RWS19WMQABa_... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | anita.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.study, b.nic.study, c.nic.study...)
Analysis
IP Addresses
optima.study points to four IP numbers: 2606:4700:3033::6815:25a2, 2606:4700:3037::ac43:d275, 104.21.37.162 and 172.67.210.117.
For instance, other host names lilewang.cn, procuroamante.org, level96.de, aeci.us.com and www.tjsodo.com share IP numbers with optima.study.
Name Servers
optima.study is delegated to two name servers: anita.ns.cloudflare.com and pranab.ns.cloudflare.com.
optima.study uses the same name server setup as other domains such as gramo.be, notariaatverelst.be, microlightmusic.co.uk, optima-osvita.org and identifyourself.be.
optima.study shares name servers with other domains at least partially, for example kaba.pics, etisalat.homes, sbbrisk.com, frizerstvo-sezana.si and blsystems.nl.
These name servers are commonly used with melinda.ns.cloudflare.com.
Host names with six IP numbers: host name anita.ns.cloudflare.com points to: 2606:4700:50::a29f:2652, 2803:f800:50::6ca2:c252, 2a06:98c1:50::ac40:2252, 108.162.194.82, 162.159.38.82 and 172.64.34.82; host name pranab.ns.cloudflare.com points to: 2606:4700:58::a29f:2cc7, 2803:f800:50::6ca2:c3c7, 2a06:98c1:50::ac40:23c7, 108.162.195.199, 162.159.44.199 and 172.64.35.199.
Mail Servers
optima.study is handled by a single mail server, optima-study.mail.protection.outlook.com.
Host name optima-study.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::b, 2a01:111:f403:ca04::10, 2a01:111:f403:ca09::1, 2a01:111:f403:ca09::d, 52.101.68.0, 52.101.68.12, 52.101.68.32 and 52.101.68.39.