check.codexcn.org - robtex.com
check.codexcn.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:9a01🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:cfd🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.12.253Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.154.1🇺🇸 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 | 104.21.12.253, 172.67.154.1 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:9a01, 2606:4700:3033::6815:cfd | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=105, name=cloudflare-ech.com | ||||||
codexcn.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:9a01🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:cfd🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.12.253Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.154.1🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | kai.ns.cloudflare.com ⭐ | ||||||
| NS | tess.ns.cloudflare.com | ||||||
| TXT | google-site-verification=LbWrDl1bXvk-EKJG2xGdun_TGFr1JmoF-b-TeoarOKQ | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.12.253, 172.67.154.1 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:9a01, 2606:4700:3033::6815:cfd | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=105, name=cloudflare-ech.com | ||||||
| SOA | kai.ns.cloudflare.comdns@cloudflare.com serial=2411512674 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●A104.21.12.2532026-08-07 → 2026-08-16 · 2 obs
● 2026-08-07 23:32:20
● 2026-08-16 20:08:38
● 2026-08-16 20:08:38
●A172.67.154.12026-08-07 → 2026-08-16 · 2 obs
● 2026-08-07 23:32:20
● 2026-08-16 20:08:38
● 2026-08-16 20:08:38
●A2606:4700:3031::ac43:9a012026-08-07 → 2026-08-16 · 2 obs
● 2026-08-07 23:32:20
● 2026-08-16 20:08:38
● 2026-08-16 20:08:38
●A2606:4700:3033::6815:cfd2026-08-07 → 2026-08-16 · 2 obs
● 2026-08-07 23:32:20
● 2026-08-16 20:08:38
● 2026-08-16 20:08:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| codexcn.org | tess.ns.cloudflare.com, kai.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.188
NS records: tess.ns.cloudflare.com, kai.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codexcn.org (unsigned zone)
⏱️ Timing
Total: 256ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.154.1, 104.21.12.253 |
| AAAA | 2 | 2606:4700:3033::6815:cfd, 2606:4700:3031::ac43:9a01 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
check.codexcn.org directs to four IP numbers, which are 104.21.12.253, 172.67.154.1, 2606:4700:3031::ac43:9a01 and 2606:4700:3033::6815:cfd.
Two other host names, along with interweaveagency.fr, share.fi and wildpath.info, also share IP numbers with check.codexcn.org.