HTTP Headers Analysis for https://exercise.com

Detected Technologies from Headers

See all in URL Inspect 3

Cloudflare CDN

Next.js

Vercel

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=63072000; includeSubDomains; preload

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

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Add Content-Security-Policy header to prevent XSS attacks
• 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

rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, accept-encoding

connection: close
transfer-encoding: chunked
vary: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, accept-encoding

Caching Headers

Age

Caching

49402

Cache-Control

Caching

public, max-age=0, must-revalidate

age: 49402
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

X-Powered-By

Server

Next.js

server: cloudflare
x-powered-by: Next.js

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9f75548dfdd717e5-IAD

Date

Other

Wed, 06 May 2026 04:44:32 GMT

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=17,cfOrigin;dur=0,cfWorker;dur=66

X-Matched-Path

Other

/

X-Nextjs-Prerender

Other

1

X-Nextjs-Stale-Time

Other

300

X-Vercel-Cache

Other

HIT

X-Vercel-Id

Other

iad1::iad1::rcmcf-1778042672378-198e84710a03

cf-cache-status: DYNAMIC
cf-ray: 9f75548dfdd717e5-IAD
date: Wed, 06 May 2026 04:44:32 GMT
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=17,cfOrigin;dur=0,cfWorker;dur=66
x-matched-path: /
x-nextjs-prerender: 1
x-nextjs-stale-time: 300
x-vercel-cache: HIT
x-vercel-id: iad1::iad1::rcmcf-1778042672378-198e84710a03

Recommendations

Enable compression (gzip/brotli) to improve performance

Consider removing X-Powered-By header to hide server technology