learn.ou.edu.com - robtex.com
learn.ou.edu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::ac43:92a4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3993🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.57.147Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.146.164🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.57.147, 172.67.146.164 | ||||||
| IPv6 hints | 2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com | ||||||
ou.edu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::ac43:92a4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3993🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.57.147Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.146.164🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.57.147, 172.67.146.164 | ||||||
| IPv6 hints | 2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com | ||||||
WOT: SAFE (45/100)
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●A104.21.57.1472026-02-28 → 2026-08-05 · 2 obs
● 2026-02-28 14:19:52
● 2026-08-05 04:20:32
● 2026-08-05 04:20:32
●A172.67.146.1642026-02-28 → 2026-08-05 · 2 obs
● 2026-02-28 14:19:52
● 2026-08-05 04:20:32
● 2026-08-05 04:20:32
○A2606:4700:3035::6815:39932026-02-28 → 2026-03-31 · 3 obs
● 2026-02-28 14:19:52
● 2026-03-31 08:54:12
○ 2026-08-05 04:20:32
● 2026-03-31 08:54:12
○ 2026-08-05 04:20:32
●A2606:4700:3035::ac43:92a42026-02-28 → 2026-08-05 · 2 obs
● 2026-02-28 14:19:52
● 2026-08-05 04:20:32
● 2026-08-05 04:20:32
●A2606:4700:3036::6815:39932026-08-05 → 2026-08-05 · 2 obs
○ 2026-03-31 08:54:12
● 2026-08-05 04:20:32
● 2026-08-05 04:20:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| edu.com | josephine.ns.cloudflare.com, sonny.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.66
NS records: josephine.ns.cloudflare.com, sonny.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for edu.com (unsigned zone)
⏱️ Timing
Total: 122ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.146.164, 104.21.57.147 |
| AAAA | 2 | 2606:4700:3036::6815:3993, 2606:4700:3035::ac43:92a4 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (josephine.ns.cloudflare.com, josephine.ns.cloudflare.com, josephine.ns.cloudflare.com...)
Analysis
IP Addresses
learn.ou.edu.com directs to four IP numbers, which are 104.21.57.147, 172.67.146.164, 2606:4700:3035::ac43:92a4 and 2606:4700:3036::6815:3993.
tyqcjy.cn, gutech.edu.com, ddpe-es.umc.edu.com plus two other host names have IP numbers in common with learn.ou.edu.com.