federatedsyncframework.courses - dns.ninja
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 ⭐ | ||||||
| A | 2606:4700:50::a29f:269e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c29e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:229e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| A | 108.162.194.158🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| A | 162.159.38.158Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| A | 172.64.34.158🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raegan.ns.cloudflare.com | ||||||
| NS | roman.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c67🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | roman.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c367🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | roman.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2367🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | roman.ns.cloudflare.com | ||||||
| A | 108.162.195.103🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | roman.ns.cloudflare.com | ||||||
| A | 162.159.44.103Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | roman.ns.cloudflare.com | ||||||
| A | 172.64.35.103🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | 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=238, name=cloudflare-ech.com | ||||||
| SOA | raegan.ns.cloudflare.comdns@cloudflare.com serial=2409532003 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1786689471 | ||||||
⚠️ On DNS blocklist: spam-tlds
Subdomains
www.federatedsyncframework.courses |
Same first word
federatedsyncframework.courses |
DNS History
4 records (4 active, 0 former)
●NSraegan.ns.cloudflare.com2026-05-23 → 2026-08-14 · 2 obs
● 2026-08-14 07:55:44
●NSroman.ns.cloudflare.com2026-05-23 → 2026-08-14 · 2 obs
● 2026-08-14 07:55:44
●A104.21.12.2012026-05-23 → 2026-08-14 · 2 obs
● 2026-08-14 07:55:44
●A172.67.132.1012026-05-23 → 2026-08-14 · 2 obs
● 2026-08-14 07:55:44
🔍 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:172.64.35.103
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: 396ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.12.201, 172.67.132.101 |
| NS | 2 | raegan.ns.cloudflare.com, roman.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | raegan.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)
Analysis
Hierarchy
The domain www.federatedsyncframework.courses falls under the parent federatedsyncframework.courses.
IP Addresses
federatedsyncframework.courses has two IP addresses: 104.21.12.201 and 172.67.132.101
www.federatedsyncframework.courses, leckermann.at, sibunhill.com and two other host names share IP numbers with federatedsyncframework.courses.
Name Servers
DNS delegation for federatedsyncframework.courses points to two name servers: raegan.ns.cloudflare.com and roman.ns.cloudflare.com.
federatedsyncframework.courses uses the same name servers as several other domains — among them linuxmail.in, virtualizednetworklab.courses, irretus.com and two more.
At least some of federatedsyncframework.courses's name servers are shared with other domains, for example ffgmsb.info, deepdyve.com, 4777.tw and two more.
These name servers are often deployed together with the name servers jaziel.ns.cloudflare.com, molly.ns.cloudflare.com, jill.ns.cloudflare.com and amit.ns.cloudflare.com.
Hostnames that resolve to 6 IP addresses:
raegan.ns.cloudflare.com has IP addresses 108.162.194.158, 162.159.38.158 and 172.64.34.158, plus 3 other.
roman.ns.cloudflare.com has IP addresses 108.162.195.103, 162.159.44.103 and 172.64.35.103, plus 3 other.