Technical Information
| HTTP Status Code | 404 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 162.159.140.166 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
🔍 🟡 404 Not Found | The requested page does not exist. Check the URL or server configuration. |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 404
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 162.159.140.166
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔍 🟡 404 Not Found The requested page does not exist. Check the URL or server configuration.
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 151.5 ms |
| TCP Connect | 153.2 ms |
| TLS Handshake | 10.6 ms |
| Time To First Byte (TTFB) | 318.1 ms |
| Content Download | 0.1 ms |
| Total Response Time | 318.2 ms |
DNS Lookup 151.5 ms
TCP Connect 153.2 ms
TLS Handshake 10.6 ms
Time To First Byte (TTFB) 318.1 ms
Content Download 0.1 ms
Total Response Time 318.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | 404 - Page Not Found |
Title 404 - Page Not Found
Detected Technologies
| Technology | Vue.js Cloudflare |
Technology Vue.js Cloudflare
HTTP Headers
| Date | Fri, 24 Jul 2026 18:17:14 GMT |
| Content-type | text/html; charset=utf-8 |
| Cache-control | no-cache, no-store, must-revalidate |
| Vary | Accept-Encoding |
| Set-cookie | __cf_bm=ehgk4d5jDK744m2T3NqkdGXuCFghK4KcHSm.g_EbTZo-1784917034.7711604-1.0.1.1-9u_Eu5K8hiUZB60L_w6m3iTdIjyYH9MgtvTD70Fd6pQHDhdPtXhpKAYN7IfnvxBSqygiVdrxWHdPMwrLltqhz6i0crJdV05dx4m2Lu01wNtnI.d0QRU3WuXXTQftanjx; HttpOnly; SameSite=None; Secure; Path=/; Domain=thechessteacher.com; Expires=Fri, 24 Jul 2026 18:47:14 GMT |
| Via | 1.1 google |
| Server-timing | cfEdge;dur=21,cfOrigin;dur=129 |
| Cf-cache-status | BYPASS |
| Content-encoding | gzip |
| Server | cloudflare |
| Cf-ray | a204ebab599b6f24-CDG |
Meta Tags
| Viewport | width=device-width, initial-scale=1.0 |
Date Fri, 24 Jul 2026 18:17:14 GMT
Content-type text/html; charset=utf-8
Cache-control no-cache, no-store, must-revalidate
Vary Accept-Encoding
Set-cookie __cf_bm=ehgk4d5jDK744m2T3NqkdGXuCFghK4KcHSm.g_EbTZo-1784917034.7711604-1.0.1.1-9u_Eu5K8hiUZB60L_w6m3iTdIjyYH9MgtvTD70Fd6pQHDhdPtXhpKAYN7IfnvxBSqygiVdrxWHdPMwrLltqhz6i0crJdV05dx4m2Lu01wNtnI.d0QRU3WuXXTQftanjx; HttpOnly; SameSite=None; Secure; Path=/; Domain=thechessteacher.com; Expires=Fri, 24 Jul 2026 18:47:14 GMT
Via 1.1 google
Server-timing cfEdge;dur=21,cfOrigin;dur=129
Cf-cache-status BYPASS
Content-encoding gzip
Server cloudflare
Cf-ray a204ebab599b6f24-CDG
