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=1778283643 | ||||||
Same first word
Similar names
DNS History
12 records (7 active, 5 former)
●NSns-1199.awsdns-21.org2026-04-10 → 2026-05-09 · 2 obs
● 2026-05-09 00:53:46
●NSns-147.awsdns-18.com2026-04-10 → 2026-05-09 · 2 obs
● 2026-05-09 00:53:46
●NSns-1733.awsdns-24.co.uk2026-04-10 → 2026-05-09 · 2 obs
● 2026-05-09 00:53:46
●NSns-942.awsdns-53.net2026-04-10 → 2026-05-09 · 2 obs
● 2026-05-09 00:53:46
○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
○ 2026-05-09 00:53:46
●A18.141.94.1852026-05-09 → 2026-05-09 · 3 obs
● 2026-05-09 00:53:44
● 2026-05-09 00:53:46
●A18.143.217.1402026-05-09 → 2026-05-09 · 3 obs
● 2026-05-09 00:53:44
● 2026-05-09 00:53:46
○A3.1.119.932026-04-10 → 2026-04-12 · 4 obs
● 2026-04-12 13:17:28
○ 2026-04-17 19:10:54
○ 2026-05-09 00:53:46
○A52.220.181.1992026-04-10 → 2026-04-18 · 4 obs
● 2026-04-18 22:56:28
○ 2026-05-09 00:53:44
○ 2026-05-09 00:53:46
●A52.221.99.1152026-05-09 → 2026-05-09 · 3 obs
● 2026-05-09 00:53:44
● 2026-05-09 00:53:46
○A54.151.230.332026-04-10 → 2026-04-12 · 4 obs
● 2026-04-12 13:17:28
○ 2026-04-17 19:10:54
○ 2026-05-09 00:53:46
○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
○ 2026-05-09 00:53:46
🔍 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:205.251.198.197
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: 538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 52.221.99.115, 18.143.217.140... |
| 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, b.nic.study, c.nic.study...)
Analysis
IP Addresses
openai.study resolves to three IP numbers: 18.141.94.185, 18.143.217.140 and 52.221.99.115.
Other host names, for instance, ec2-52-221-99-115.ap-southeast-1.compute.amazonaws.com and ec2-18-141-94-185.ap-southeast-1.compute.amazonaws.com share IP numbers with openai.study.
Name Servers
openai.study is delegated to four name servers: ns-147.awsdns-18.com, ns-942.awsdns-53.net, ns-1199.awsdns-21.org and ns-1733.awsdns-24.co.uk.
openai.study shares some name servers with other domains, for example red-ice.me, ryoma.ac.jp, 227.20.51.in-addr.arpa, carrierpacket.link and ijura.us.
These name servers are commonly used alongside 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.
Host names with two IP numbers
Two IPs per host:
ns-147.awsdns-18.com points to 2600:9000:5300:9300::1 and 205.251.192.147
ns-942.awsdns-53.net points to 2600:9000:5303:ae00::1 and 205.251.195.174
ns-1199.awsdns-21.org points to 2600:9000:5304:af00::1 and 205.251.196.175
ns-1733.awsdns-24.co.uk points to 2600:9000:5306:c500::1 and 205.251.198.197