HTTP Headers Analysis for https://spring.io/projects/spring-framework
Analyzed on November 02, 2025 at 03:42 UTC
URL: https://spring.io/projects/spring-framework | Status: 200
17 Headers
Total Found
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
- • Consider adding Permissions-Policy to control browser features
Performance Headers
3 headers
Connection
Performance
keep-alive
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding
Caching Headers
1 headers
Cache-Control
Caching
public, max-age=0, must-revalidate
Content Headers
1 headers
Content-Type
Content
text/html; charset=utf-8
Server Headers
1 headers
Server
Server
cloudflare
CORS Headers
1 headers
Access-Control-Allow-Origin
Cors
*
Cookies Headers
1 headers
Set-Cookie
Cookies
__cf_bm=Rn3aq3rLbkgMDrFymEnLWguSkje9q8Dj6J8ANgV01Jg-1762033838-1.0.1.1-zYaCJ13sd7nc2xKyWvCQtD5IrCXKcNXeE2ufHZxXwwdOfwrDwCBqN4khP77OJmtFkYK4zoeLKpxxiVWTvJy8Yf_fSb8YFF.dKcC1hIOBRuE; path=/; expires=Sat, 01-Nov-25 22:20:38 GMT; domain=.spring.io; HttpOnly; Secure; SameSite=None
Other Headers
4 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
997e9be15b8cd637-IAD
Date
Other
Sat, 01 Nov 2025 21:50:38 GMT
Recommendations
Enable compression (gzip/brotli) to improve performance
Analysis completed in 1ms