Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 188.184.77.250 |
| Server Software | openresty/1.27.1.2 |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 188.184.77.250
Server Software openresty/1.27.1.2
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://cern.ch:443 | 302 | HTTP/1.1 302 Found |
| 2 | https://home.cern | 200 | HTTP/1.1 200 OK |
#1 URL https://cern.ch:443
HTTP Status Code 302
Status HTTP/1.1 302 Found
#2 URL https://home.cern
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 203.8 ms |
| TCP Connect | 221.4 ms |
| TLS Handshake | 29.7 ms |
| Time To First Byte (TTFB) | 274 ms |
| Content Download | 35.7 ms |
| Total Response Time | 309.7 ms |
DNS Lookup 203.8 ms
TCP Connect 221.4 ms
TLS Handshake 29.7 ms
Time To First Byte (TTFB) 274 ms
Content Download 35.7 ms
Total Response Time 309.7 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 | Home | CERN |
| Canonical | https://home.cern/ |
| Robots Meta | max-image-preview:large |
Title Home | CERN
Canonical https://home.cern/
Robots Meta max-image-preview:large
Detected Technologies
| Technology | WordPress React jQuery Google Analytics PHP Matomo |
Technology WordPress React jQuery Google Analytics PHP Matomo
HTTP Headers
| Server
| openresty/1.27.1.2 |
| Date
| Wed, 19 Aug 2026 22:01:34 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Content-length
| 53858 |
| X-powered-by
| PHP/8.4.24 |
| Vary
| Accept-Encoding, Cookie |
| Cache-control
| private |
| Content-encoding
| gzip |
| Last-modified
| Wed, 19 Aug 2026 22:00:12 GMT |
| Set-cookie
| bf6811c95dc116bb8288e5438412494d=bfefe33dca69ca5b256c156b54346792; path=/; HttpOnly; Secure; SameSite=None |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | max-image-preview:large |
| Generator | WordPress 6.9.5 |
| Msapplication-TileImage |  |
Server openresty/1.27.1.2
Date Wed, 19 Aug 2026 22:01:34 GMT
Content-type text/html; charset=UTF-8
Content-length 53858
X-powered-by PHP/8.4.24
Vary Accept-Encoding, Cookie
Cache-control private
Content-encoding gzip
Last-modified Wed, 19 Aug 2026 22:00:12 GMT
Set-cookie bf6811c95dc116bb8288e5438412494d=bfefe33dca69ca5b256c156b54346792; path=/; HttpOnly; Secure; SameSite=None
