www.studizen.co - robtex.com
www.studizen.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:dd6a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::6815:3333🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.51.51Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.221.106🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.51.51, 172.67.221.106 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:dd6a, 2606:4700:3032::6815:3333 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com | ||||||
studizen.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:dd6a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::6815:3333🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.51.51Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.221.106🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | elly.ns.cloudflare.com ⭐ | ||||||
| NS | pedro.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.51.51, 172.67.221.106 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:dd6a, 2606:4700:3032::6815:3333 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com | ||||||
| SOA | elly.ns.cloudflare.comdns@cloudflare.com serial=2397054997 | ||||||
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●A104.21.51.512026-04-07 → 2026-04-12 · 3 obs
○ 2017-07-04 15:26:48
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
●A172.67.221.1062026-04-07 → 2026-04-12 · 3 obs
○ 2017-07-04 15:26:48
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
●A2606:4700:3031::ac43:dd6a2026-04-07 → 2026-04-12 · 3 obs
○ 2017-07-04 15:26:48
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
●A2606:4700:3032::6815:33332026-04-07 → 2026-04-12 · 3 obs
○ 2017-07-04 15:26:48
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
● 2026-04-07 20:07:14
● 2026-04-12 16:59:52
○A52.18.247.1702017-07-04 → 2017-07-04 · 3 obs
● 2017-07-04 15:26:48
○ 2026-04-07 20:07:14
○ 2026-04-12 16:59:52
○ 2026-04-07 20:07:14
○ 2026-04-12 16:59:52
○A52.214.201.632017-07-04 → 2017-07-04 · 3 obs
● 2017-07-04 15:26:48
○ 2026-04-07 20:07:14
○ 2026-04-12 16:59:52
○ 2026-04-07 20:07:14
○ 2026-04-12 16:59:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | c.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co | - |
| studizen.co | elly.ns.cloudflare.com, pedro.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.183
NS records: elly.ns.cloudflare.com, pedro.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studizen.co (unsigned zone)
⏱️ Timing
Total: 401ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.221.106, 104.21.51.51 |
| AAAA | 2 | 2606:4700:3031::ac43:dd6a, 2606:4700:3032::6815:3333 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
www.studizen.co resolves to four IP numbers: 2606:4700:3031::ac43:dd6a, 2606:4700:3032::6815:3333, 104.21.51.51 and 172.67.221.106.
Other host names such as taya777.one, gzsdelong.com, tleem.com, digitalchat.cl and esteyhoover.com share IPs with www.studizen.co.