HTTP Headers Analysis for https://playground.proguard.com

Detected Technologies from Headers

See all in URL Inspect 1

Google Fonts

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536000; includeSubDomains

Content-Security-Policy

Good

default-src; style-src; font-src; +5 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Consider adding 'preload' to HSTS for maximum security
• Strengthen CSP by removing 'unsafe-eval'
• 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

Connection

Performance

close

Vary

Performance

Accept-Encoding

connection: close
vary: Accept-Encoding

Caching Headers

No caching headers found

Content Headers

Content-Length

Content

1858

Content-Type

Content

text/html; charset=utf-8

content-length: 1858
content-type: text/html; charset=utf-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: playground-session=MTc4ODIxMzU3NXxEWDhFQVFMX2dBQUJFQUVRQUFBOV80QUFBUVp6ZEhKcGJtY01CQUFDYVdRYloybDBhSFZpTG1OdmJTOW5iMjluYkdVdmRYVnBaQzVWVlVsRV80RUdBUUVFVlZWSlJBSF9nZ0FBQUJYX2doSUFFSDREYk9EX3RVWDR0RzA1Znh0NWp0az18VBvlAiBaQm1yhCFV4i1TL4fJsbmDtxOQE2wXZg7y3Yo=; Path=/; Domain=playground.proguard.com; Expires=Sat, 27 Feb 2027 21:59:35 GMT; Max-Age=15552000; Secure; SameSite=None
playground-session=MTc4ODIxMzU3NXxEWDhFQVFMX2dBQUJFQUVRQUFBOV80QUFBUVp6ZEhKcGJtY01CQUFDYVdRYloybDBhSFZpTG1OdmJTOW5iMjluYkdVdmRYVnBaQzVWVlVsRV80RUdBUUVFVlZWSlJBSF9nZ0FBQUJYX2doSUFFSDREYk9EX3RVWDR0RzA1Znh0NWp0az18VBvlAiBaQm1yhCFV4i1TL4fJsbmDtxOQE2wXZg7y3Yo=; Path=/; Domain=playground.proguard.com; Expires=Sat, 27 Feb 2027 21:59:35 GMT; Max-Age=15552000; Secure; SameSite=None

Other Headers

Alt-Svc

Other

h3=":443"; ma=2592000

Date

Other

Mon, 31 Aug 2026 21:59:35 GMT

Via

Other

1.1 google

alt-svc: h3=":443"; ma=2592000
date: Mon, 31 Aug 2026 21:59:35 GMT
via: 1.1 google

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching