HTTP Headers Analysis for https://jxls.sf.net

Detected Technologies from Headers

See all in URL Inspect 1

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

Content-Security-Policy

Weak

upgrade-insecure-requests 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

• Add Strict-Transport-Security header with max-age of at least 1 year
• Significantly strengthen CSP directives
• 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

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding, Host, Accept-Encoding

connection: close
transfer-encoding: chunked
vary: Accept-Encoding, Host, Accept-Encoding

Caching Headers

Cache-Control

Caching

max-age=3600

Etag

Caching

W/"1dc3-64cfe5ce24200"

Expires

Caching

Sun, 19 Jul 2026 18:07:22 GMT

Last-Modified

Caching

Sat, 14 Mar 2026 16:20:24 GMT

cache-control: max-age=3600
etag: W/"1dc3-64cfe5ce24200"
expires: Sun, 19 Jul 2026 18:07:22 GMT
last-modified: Sat, 14 Mar 2026 16:20:24 GMT

Content Headers

Content-Type

Content

text/html

content-type: text/html

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: __cf_bm=oIej8MrDI.J2a86sHdS6uv5lsIX9j.wzeuHsdlSRDaA-1784480839.238915-1.0.1.1-lUKxQPHwF2pet9GZYXkRmnDzmEI5FQ3s4UUAAZwb0qi8i9yN0py9styBER1O_AnsbrRCmaN4buJmITytRxVtVsbDrRGgJZ.387nDVykT08i8M96pDsISEUByRGQuU2q6; HttpOnly; SameSite=None; Secure; Path=/; Domain=sourceforge.net; Expires=Sun, 19 Jul 2026 17:37:19 GMT

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

a1db525d3b0416b7-IAD

Date

Other

Sun, 19 Jul 2026 17:07:19 GMT

X-From

Other

sfp-ioweb82-1

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: a1db525d3b0416b7-IAD
date: Sun, 19 Jul 2026 17:07:19 GMT
x-from: sfp-ioweb82-1

Recommendations

Enable compression (gzip/brotli) to improve performance