Open
Cached
·
just now
18
Headers
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Significantly strengthen CSP directives
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
Performance Headers
3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
accept-encoding
Caching Headers
2 headers
Age
Caching
3503592
Last-Modified
Caching
Mon, 27 Oct 2025 16:58:41 GMT
Content Headers
1 headers
Content-Type
Content
text/html
Server Headers
1 headers
Server
Server
cloudflare
CORS Headers
0 headers
No CORS headers found
Cookies Headers
1 headers
Set-Cookie
Cookies
_cfuvid=WpByyfEbbrSRP15hL8knUUrxMFQE.d358fJhubmfpGE-1765087914818-0.0.1.1-604800000; path=/; domain=.www.co2opt.com; HttpOnly; Secure; SameSite=None
Other Headers
7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9aa1de4b5a43c590-IAD
Date
Other
Sun, 07 Dec 2025 06:11:54 GMT
Surrogate-Control
Other
max-age=2147483647
Surrogate-Key
Other
www.co2opt.com 626a24083107cb8eac02dc53 pageId:628624abefdfef7531200a76
X-Lambda-Id
Other
817bc0c4-7660-4dec-9145-da3a51fa8cdc
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching
Analysis completed in 358ms