Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.151.30.128 |
| Server Software | Apache |
| Compression | gzip |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 185.151.30.128
Server Software Apache
Compression gzip
Performance
| DNS Lookup | 38.1 ms |
| TCP Connect | 39.2 ms |
| TLS Handshake | 3.5 ms |
| Time To First Byte (TTFB) | 57.1 ms |
| Content Download | 0.1 ms |
| Total Response Time | 57.2 ms |
DNS Lookup 38.1 ms
TCP Connect 39.2 ms
TLS Handshake 3.5 ms
Time To First Byte (TTFB) 57.1 ms
Content Download 0.1 ms
Total Response Time 57.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=63072000; includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin-when-cross-origin |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=63072000; includeSubDomains
CSP ✔ Configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin-when-cross-origin
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | About - Project Euler |
| Meta Description | A website dedicated to the fascinating world of mathematics and programming |
Title About - Project Euler
Meta Description A website dedicated to the fascinating world of mathematics and programming
Detected Technologies
| Technology | Cloudflare Apache |
Technology Cloudflare Apache
HTTP Headers
| Date
| Wed, 22 Jul 2026 05:03:44 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Content-length
| 2184 |
| Server
| Apache |
| X-powered-by
| PHP/8.5.6 |
| Expires
| Thu, 19 Nov 1981 08:52:00 GMT |
| Cache-control
| no-store, no-cache, must-revalidate |
| Pragma
| no-cache |
| Set-cookie
| __Host-PHPSESSID=3fbddfdee16b02f4384602d58a205461; path=/; secure; HttpOnly; SameSite=Lax |
| Strict-transport-security
| max-age=63072000; includeSubDomains |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| X-static-config
| yes |
| X-guest-hostname
| vps-cc63e9 |
| X-content-type-options
| nosniff |
| X-frame-options
| SAMEORIGIN |
| Referrer-policy
| strict-origin-when-cross-origin |
| Permissions-policy
| geolocation=(), microphone=(), camera=() |
| Content-security-policy
| script-src 'self' https://cdn.jsdelivr.net/npm/mathjax@4/ https://cdn.jsdelivr.net/npm/@mathjax/ https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/styles/ https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com https://cdnjs.cloudflare.com data:; object-src 'none'; base-uri 'self'; frame-ancestors 'self'; worker-src 'self' blob:; |
| X-cdn-cache-status
| MISS |
| X-via
| CDG1 |
Meta Tags
| Author | Colin Hughes |
| Description | A website dedicated to the fascinating world of mathematics and programming |
| Keywords | programming,mathematics,problems,puzzles |
| Viewport | width=device-width, initial-scale=1 |
| Msapplication-TileColor | #da532c |
| Msapplication-config | /favicons/browserconfig.xml |
| Theme-color | #ffffff |
Date Wed, 22 Jul 2026 05:03:44 GMT
Content-type text/html; charset=UTF-8
Content-length 2184
Server Apache
X-powered-by PHP/8.5.6
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-control no-store, no-cache, must-revalidate
Pragma no-cache
Set-cookie __Host-PHPSESSID=3fbddfdee16b02f4384602d58a205461; path=/; secure; HttpOnly; SameSite=Lax
Strict-transport-security max-age=63072000; includeSubDomains
Vary Accept-Encoding
Content-encoding gzip
X-static-config yes
X-guest-hostname vps-cc63e9
X-content-type-options nosniff
X-frame-options SAMEORIGIN
Referrer-policy strict-origin-when-cross-origin
Permissions-policy geolocation=(), microphone=(), camera=()
Content-security-policy script-src 'self' https://cdn.jsdelivr.net/npm/mathjax@4/ https://cdn.jsdelivr.net/npm/@mathjax/ https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/styles/ https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com https://cdnjs.cloudflare.com data:; object-src 'none'; base-uri 'self'; frame-ancestors 'self'; worker-src 'self' blob:;
X-cdn-cache-status MISS
X-via CDG1
