Open
Cached
·
just now
13
Headers
Detected Technologies from Headers
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
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
Accept-Ranges
bytes
Connection
close
accept-ranges: bytes connection: close
Caching Headers
Age
1
Cache-Control
public,max-age=0,must-revalidate
Etag
"0154eb09397ecddd284c0894dacbab7f-ssl"
age: 1 cache-control: public,max-age=0,must-revalidate etag: "0154eb09397ecddd284c0894dacbab7f-ssl"
Content Headers
Content-Length
16891
Content-Type
text/html; charset=UTF-8
content-length: 16891 content-type: text/html; charset=UTF-8
Server Headers
Server
Netlify
server: Netlify
CORS Headers
No CORS headers found
Cookies Headers
Other Headers
Cache-Status
"Netlify Edge"; fwd=miss
Date
Tue, 31 Mar 2026 00:16:59 GMT
X-Nf-Request-Id
01KN0M0BQ9G2MHMZ0M4HJW8SMX
cache-status: "Netlify Edge"; fwd=miss date: Tue, 31 Mar 2026 00:16:59 GMT link: <https://portfolio.phungdao.com/>; rel="canonical" x-nf-request-id: 01KN0M0BQ9G2MHMZ0M4HJW8SMX
Recommendations
Enable compression (gzip/brotli) to improve performance