check1.cdn221.com - robtex.com
check1.cdn221.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:faa🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:a350🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.15.170Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.163.80🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.15.170, 172.67.163.80 | ||||||
| IPv6 hints | 2606:4700:3031::6815:faa, 2606:4700:3036::ac43:a350 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=4, name=cloudflare-ech.com | ||||||
cdn221.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | fiona.ns.cloudflare.com ⭐ | ||||||
| NS | jason.ns.cloudflare.com | ||||||
| SOA | fiona.ns.cloudflare.comdns@cloudflare.com serial=2408020817 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●A104.21.15.1702026-06-15 → 2026-08-05 · 2 obs
● 2026-06-15 18:23:20
● 2026-08-05 06:28:38
● 2026-08-05 06:28:38
●A172.67.163.802026-06-15 → 2026-08-05 · 2 obs
● 2026-06-15 18:23:20
● 2026-08-05 06:28:38
● 2026-08-05 06:28:38
●A2606:4700:3031::6815:faa2026-08-05 → 2026-08-05 · 2 obs
○ 2026-06-15 18:23:20
● 2026-08-05 06:28:38
● 2026-08-05 06:28:38
○A2606:4700:3035::6815:faa2026-06-15 → 2026-06-15 · 2 obs
● 2026-06-15 18:23:20
○ 2026-08-05 06:28:38
○ 2026-08-05 06:28:38
●A2606:4700:3036::ac43:a3502026-06-15 → 2026-08-05 · 2 obs
● 2026-06-15 18:23:20
● 2026-08-05 06:28:38
● 2026-08-05 06:28:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net... | - |
| cdn221.com | fiona.ns.cloudflare.com, jason.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.192.157
NS records: fiona.ns.cloudflare.com, jason.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdn221.com (unsigned zone)
⏱️ Timing
Total: 119ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.163.80, 104.21.15.170 |
| AAAA | 2 | 2606:4700:3036::ac43:a350, 2606:4700:3031::6815:faa |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (fiona.ns.cloudflare.com, fiona.ns.cloudflare.com, fiona.ns.cloudflare.com...)
Analysis
IP Addresses
check1.cdn221.com directs to four IP numbers, which are 104.21.15.170, 172.67.163.80, 2606:4700:3031::6815:faa and 2606:4700:3036::ac43:a350.
blotoken.com, crystalledger24.com, tesd-900410.sciencepav.ru and two other host names share IP numbers with check1.cdn221.com.