www.federatedsyncframework.courses - robtex.com
www.federatedsyncframework.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.12.201Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.132.101🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.12.201, 172.67.132.101 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com | ||||||
federatedsyncframework.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.12.201Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.132.101🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | raegan.ns.cloudflare.com ⭐ | ||||||
| NS | roman.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.12.201, 172.67.132.101 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com | ||||||
| SOA | raegan.ns.cloudflare.comdns@cloudflare.com serial=2404776325 | ||||||
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●A104.21.12.2012026-05-23 → 2026-06-23 · 2 obs
● 2026-05-23 07:16:26
● 2026-06-23 02:19:14
● 2026-06-23 02:19:14
●A172.67.132.1012026-05-23 → 2026-06-23 · 2 obs
● 2026-05-23 07:16:26
● 2026-06-23 02:19:14
● 2026-06-23 02:19:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses... | 12 records |
| federatedsyncframework.courses | roman.ns.cloudflare.com, raegan.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.103
NS records: roman.ns.cloudflare.com, raegan.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for federatedsyncframework.courses (unsigned zone)
⏱️ Timing
Total: 933ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.132.101, 104.21.12.201 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.courses, a.nic.courses, b.nic.courses...)
Analysis
IP Addresses
www.federatedsyncframework.courses resolves to the IP addresses 104.21.12.201 and 172.67.132.101
tsuru.fr, density.sk, appetgrid.digital plus two other host names have IP numbers in common with www.federatedsyncframework.courses.