openai.study - robtex.com
openai.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=1780410092 | ||||||
Same first word
Similar names
DNS History
21 records (7 active, 14 former)
●NSns-1199.awsdns-21.org2026-04-10 → 2026-06-02 · 2 obs
● 2026-06-02 14:25:16
●NSns-147.awsdns-18.com2026-04-10 → 2026-06-02 · 2 obs
● 2026-06-02 14:25:16
●NSns-1733.awsdns-24.co.uk2026-04-10 → 2026-06-02 · 2 obs
● 2026-06-02 14:25:16
●NSns-942.awsdns-53.net2026-04-10 → 2026-06-02 · 2 obs
● 2026-06-02 14:25:16
●A13.215.4.1302026-05-25 → 2026-06-02 · 3 obs
● 2026-05-25 14:12:30
● 2026-06-02 14:25:16
○A13.228.223.362026-05-19 → 2026-05-19 · 4 obs
● 2026-05-19 07:54:32
○ 2026-05-25 14:12:30
○ 2026-06-02 14:25:16
○A13.251.225.1722026-05-19 → 2026-05-26 · 5 obs
● 2026-05-19 07:54:32
● 2026-05-26 19:11:36
○ 2026-06-02 14:25:14
○ 2026-06-02 14:25:16
○A18.136.219.1742026-05-11 → 2026-05-15 · 5 obs
● 2026-05-11 11:30:32
● 2026-05-15 05:29:14
○ 2026-05-19 07:54:32
○ 2026-06-02 14:25:16
○A18.139.155.272026-04-17 → 2026-04-18 · 5 obs
● 2026-04-17 19:10:54
● 2026-04-18 22:56:28
○ 2026-05-09 00:53:44
○ 2026-06-02 14:25:16
○A18.139.216.1192026-05-15 → 2026-05-15 · 4 obs
● 2026-05-15 05:29:14
○ 2026-05-19 07:54:32
○ 2026-06-02 14:25:16
●A18.139.38.262026-06-02 → 2026-06-02 · 3 obs
● 2026-06-02 14:25:14
● 2026-06-02 14:25:16
●A18.140.82.62026-06-02 → 2026-06-02 · 3 obs
● 2026-06-02 14:25:14
● 2026-06-02 14:25:16
○A18.141.94.1852026-05-09 → 2026-05-15 · 5 obs
● 2026-05-09 00:53:44
● 2026-05-15 05:29:14
○ 2026-05-19 07:54:32
○ 2026-06-02 14:25:16
○A18.143.217.1402026-05-09 → 2026-05-09 · 5 obs
● 2026-05-09 00:53:44
● 2026-05-09 05:56:02
○ 2026-05-11 11:30:32
○ 2026-06-02 14:25:16
○A3.1.119.932026-04-10 → 2026-04-12 · 4 obs
● 2026-04-12 13:17:28
○ 2026-04-17 19:10:54
○ 2026-06-02 14:25:16
○A52.220.181.1992026-04-10 → 2026-04-18 · 4 obs
● 2026-04-18 22:56:28
○ 2026-05-09 00:53:44
○ 2026-06-02 14:25:16
○A52.221.99.1152026-05-09 → 2026-05-09 · 5 obs
● 2026-05-09 00:53:44
● 2026-05-09 05:56:02
○ 2026-05-11 11:30:32
○ 2026-06-02 14:25:16
○A52.74.138.1792026-05-19 → 2026-05-26 · 5 obs
● 2026-05-19 07:54:32
● 2026-05-26 19:11:36
○ 2026-06-02 14:25:14
○ 2026-06-02 14:25:16
○A54.151.230.332026-04-10 → 2026-04-12 · 4 obs
● 2026-04-12 13:17:28
○ 2026-04-17 19:10:54
○ 2026-06-02 14:25:16
○A54.169.22.2452026-05-11 → 2026-05-11 · 4 obs
● 2026-05-11 11:30:32
○ 2026-05-15 05:29:14
○ 2026-06-02 14:25:16
○A54.251.239.1672026-04-17 → 2026-04-18 · 5 obs
● 2026-04-17 19:10:54
● 2026-04-18 22:56:28
○ 2026-05-09 00:53:44
○ 2026-06-02 14:25:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | a.nic.study, b.nic.study, c.nic.study, x.nic.study... | 12 records |
| openai.study | ns-1199.awsdns-21.org, ns-147.awsdns-18.com, ns-942.awsdns-53.net, ns-1733.awsdns-24.co.uk | - |
✅ Authoritative Response
Server:205.251.196.175
NS records: ns-1199.awsdns-21.org, ns-147.awsdns-18.com, ns-942.awsdns-53.net, ns-1733.awsdns-24.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openai.study (unsigned zone)
⏱️ Timing
Total: 540ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 13.215.4.130, 18.139.38.26... |
| NS | 4 | ns-1199.awsdns-21.org, ns-147.awsdns-18.com... |
| SOA | 1 | ns-1199.awsdns-21.org awsdns-hostmaster. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.study, a.nic.study, b.nic.study...)
Analysis
IP Addresses
openai.study directs to three IP numbers: 13.215.4.130, 18.139.38.26 and 18.140.82.6.
Host names like ec2-13-215-4-130.ap-southeast-1.compute.amazonaws.com are further examples that share IP numbers with openai.study.
Name Servers
Authority for openai.study is delegated across 4 name servers: ns-147.awsdns-18.com, ns-942.awsdns-53.net, ns-1199.awsdns-21.org and ns-1733.awsdns-24.co.uk.
There is at least partial name server overlap between openai.study and other domains — red-ice.me, ryoma.ac.jp, 227.20.51.in-addr.arpa and two more among them.
These name servers tend to appear in combination with the name servers ns1-24-eu-north-1.ec2-rdns.amazonaws.com, ns2-24-eu-north-1.ec2-rdns.amazonaws.com, ns3-24-eu-north-1.ec2-rdns.amazonaws.com and ns4-24-eu-north-1.ec2-rdns.amazonaws.com.
All four hostnames — ns-147.awsdns-18.com, ns-942.awsdns-53.net, ns-1199.awsdns-21.org and ns-1733.awsdns-24.co.uk — resolve to two IP numbers apiece: ns-147.awsdns-18.com to 205.251.192.147 and 2600:9000:5300:9300::1; ns-942.awsdns-53.net to 205.251.195.174 and 2600:9000:5303:ae00::1; ns-1199.awsdns-21.org to 205.251.196.175 and 2600:9000:5304:af00::1; ns-1733.awsdns-24.co.uk to 205.251.198.197 and 2600:9000:5306:c500::1.