HTTP Headers Analysis for https://springframework.org

Detected Technologies from Headers

See all in URL Inspect 1

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15552000; includeSubDomains

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

connection: close
transfer-encoding: chunked

Caching Headers

Cache-Control

Caching

public, max-age=0, must-revalidate

cache-control: public, max-age=0, must-revalidate

Content Headers

Content-Type

Content

text/html; charset=utf-8

content-type: text/html; charset=utf-8

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

Access-Control-Allow-Origin

Cors

*

access-control-allow-origin: *

Cookies Headers

Set-Cookie

Cookies

set-cookie: __cf_bm=.XINuxSbmVVM6QlnfgPIqgQlneh_LKrSvP8wInKc07o-1775716832.214883-1.0.1.1-ck0F10NEix_5nFWRwCfkk8EOPAjPgZ2Qwmisw_U2R2qNcBMB0QRqjFP0OUwUgFFZ9SqbchOLwjfEo6TRn3ctmIH3f_nlhQiLgpH5XmPWun6Jxee5NgEw9BhF3hqfcjDI; HttpOnly; Secure; Path=/; Domain=spring.io; Expires=Thu, 09 Apr 2026 07:10:32 GMT

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9e9785595b15d6a7-IAD

Date

Other

Thu, 09 Apr 2026 06:40:32 GMT

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=11,cfOrigin;dur=38

cf-cache-status: DYNAMIC
cf-ray: 9e9785595b15d6a7-IAD
date: Thu, 09 Apr 2026 06:40:32 GMT
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=11,cfOrigin;dur=38

Recommendations

Enable compression (gzip/brotli) to improve performance