Open
Cached
·
just now
25
Headers
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31556926; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • 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
Accept-Ranges
Performance
bytes
Connection
Performance
close
Vary
Performance
rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding,cookie,need-authorization, x-fh-requested-host, accept-encoding
Caching Headers
3 headers
Cache-Control
Caching
s-maxage=31536000
Etag
Caching
"dxrvfaavk5lvy"
Expires
Caching
Tue, 09 Dec 2025 19:28:46 GMT
Content Headers
2 headers
Content-Length
Content
28434
Content-Type
Content
text/html; charset=utf-8
Server Headers
2 headers
Server
Server
Google Frontend
X-Powered-By
Server
Next.js
CORS Headers
0 headers
No CORS headers found
Cookies Headers
1 headers
Set-Cookie
Cookies
NEXT_LOCALE=en; Path=/; SameSite=Lax
Other Headers
13 headers
Alt-Svc
Other
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
Date
Other
Tue, 09 Dec 2025 19:28:46 GMT
Link
Other
<https://calculator-365.web.app/en>; rel="alternate"; hreflang="en", <https://calculator-365.web.app/zh-Hans>; rel="alternate"; hreflang="zh-Hans", <https://calculator-365.web.app/zh-Hant>; rel="alternate"; hreflang="zh-Hant", <https://calculator-365.web.app/ja>; rel="alternate"; hreflang="ja", <https://calculator-365.web.app/>; rel="alternate"; hreflang="x-default"
Traceparent
Other
00-461ed8c4333f80933808e20992797b40-733a5d35dabe52f3-00
X-Cache
Other
MISS
X-Cache-Hits
Other
0
X-Cloud-Trace-Context
Other
461ed8c4333f80933808e20992797b40/8303051348895486707
X-Country-Code
Other
US
X-Nextjs-Cache
Other
HIT
X-Nextjs-Prerender
Other
1,1
X-Nextjs-Stale-Time
Other
300
X-Served-By
Other
cache-pdk-kfty8610069-PDK
X-Timer
Other
S1765308527.688173,VS0,VE142
Recommendations
Enable compression (gzip/brotli) to improve performance
Consider removing X-Powered-By header to hide server technology
Analysis completed in 460ms