Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 81.92.95.55 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 81.92.95.55
Server Software cloudflare
CDN Cloudflare
Compression gzip
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://cstb.fr:443 | 301 | HTTP/2 301 |
| 2 | https://www.cstb.fr/ | 200 | HTTP/2 200 |
#1 URL https://cstb.fr:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.cstb.fr/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 16.7 ms |
| TCP Connect | 18.6 ms |
| TLS Handshake | 7.7 ms |
| Time To First Byte (TTFB) | 336 ms |
| Content Download | 10.6 ms |
| Total Response Time | 346.5 ms |
DNS Lookup 16.7 ms
TCP Connect 18.6 ms
TLS Handshake 7.7 ms
Time To First Byte (TTFB) 336 ms
Content Download 10.6 ms
Total Response Time 346.5 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubDomains
CSP ✔ Configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Detected Technologies
| Technology | Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare PHP |
Technology Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare PHP
HTTP Headers
| Date
| Thu, 20 Aug 2026 02:03:12 GMT |
| Content-type
| text/html; charset=utf-8 |
| Cache-control
| no-cache, no-store |
| Pragma
| no-cache |
| Server
| cloudflare |
| Strict-transport-security
| max-age=31536000; includeSubDomains |
| X-frame-options
| SAMEORIGIN |
| Content-security-policy
| frame-ancestors 'self' *.cstb.fr *.batipedia.com https://cmsback-prod.cstb.local |
| Permissions-policy
| fullscreen=() |
| Referrer-policy
| no-referrer |
| X-content-type-options
| nosniff |
| Cf-cache-status
| DYNAMIC |
| Set-cookie
| _cfuvid=W8v8s8o0LZIcIL3TPpshPaDe5eE4SoPcvB2PFeylSYo-1787191392.0960667-1.0.1.1-lZ.R3GO8BfaImhXlNB2.xsunsnLZblGTgfM_W8BiEF4; HttpOnly; SameSite=None; Secure; Path=/; Domain=cstb.fr |
| Content-encoding
| gzip |
| Cf-ray
| a2ddd1f898ab13f4-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1.0 |
| Robots | all |
Date Thu, 20 Aug 2026 02:03:12 GMT
Content-type text/html; charset=utf-8
Cache-control no-cache, no-store
Pragma no-cache
Server cloudflare
Strict-transport-security max-age=31536000; includeSubDomains
X-frame-options SAMEORIGIN
Content-security-policy frame-ancestors 'self' *.cstb.fr *.batipedia.com https://cmsback-prod.cstb.local
Permissions-policy fullscreen=()
Referrer-policy no-referrer
X-content-type-options nosniff
Cf-cache-status DYNAMIC
Set-cookie _cfuvid=W8v8s8o0LZIcIL3TPpshPaDe5eE4SoPcvB2PFeylSYo-1787191392.0960667-1.0.1.1-lZ.R3GO8BfaImhXlNB2.xsunsnLZblGTgfM_W8BiEF4; HttpOnly; SameSite=None; Secure; Path=/; Domain=cstb.fr
Content-encoding gzip
Cf-ray a2ddd1f898ab13f4-CDG
Alt-svc h3=":443"; ma=86400
