HTTP Headers Analysis for https://capnproto.org

Detected Technologies from Headers

See all in URL Inspect 1

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

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
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• 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

connection: close
transfer-encoding: chunked
vary: accept-encoding

Caching Headers

Age

Caching

107

Cache-Control

Caching

public, max-age=3600

Expires

Caching

Tue, 27 Oct 2026 03:13:01 GMT

Last-Modified

Caching

Tue, 27 Oct 2026 02:11:13 GMT

age: 107
cache-control: public, max-age=3600
expires: Tue, 27 Oct 2026 03:13:01 GMT
last-modified: Tue, 27 Oct 2026 02:11:13 GMT

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

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Cf-Cache-Status

Other

HIT

Cf-Ray

Other

a50e2dd9f8e4cc0c-IAD

Date

Other

Tue, 27 Oct 2026 02:13:01 GMT

cf-cache-status: HIT
cf-ray: a50e2dd9f8e4cc0c-IAD
date: Tue, 27 Oct 2026 02:13:01 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance