HTTP Headers Analysis for https://developer.x.com

Detected Technologies from Headers

See all in URL Inspect 3

Cloudflare CDN

Envoy

Next.js

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=631138519; includeSubdomains

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

• 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 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

Cache-Control

Caching

s-maxage=31536000

cache-control: s-maxage=31536000

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

cloudflare envoy

server: cloudflare envoy

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: guest_id_marketing=v1%3A177756788686019496; Max-Age=63072000; Expires=Sat, 29 Apr 2028 16:51:26 GMT; Path=/; Domain=.x.com; Secure; SameSite=None
guest_id_ads=v1%3A177756788686019496; Max-Age=63072000; Expires=Sat, 29 Apr 2028 16:51:26 GMT; Path=/; Domain=.x.com; Secure; SameSite=None
personalization_id="v1_s1O3i9ZMB8csJ37eoYUyIw=="; Max-Age=63072000; Expires=Sat, 29 Apr 2028 16:51:26 GMT; Path=/; Domain=.x.com; Secure; SameSite=None
guest_id=v1%3A177756788686019496; Max-Age=63072000; Expires=Sat, 29 Apr 2028 16:51:26 GMT; Path=/; Domain=.x.com; Secure; SameSite=None
__cf_bm=Nr0uOHZ3cgZFww2ak.eG34qDGNz5Qqq.VYfvQ5F.PwQ-1777567886.7678611-1.0.1.1-q8GEhaAfyDV5pUMkk8OPiJqMPZ90jbrBSNiU9yGiJtniJKx.4QUVNdpaxpN62NdmNtDSQ3vncSKDPfq69KWzPcKMJFek3U4wV_Uz210FUdRouggj5DgTnt68bchSYOmG; HttpOnly; Secure; Path=/; Domain=x.com; Expires=Thu, 30 Apr 2026 17:21:26 GMT

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9f480d1c4ef3393e-IAD

Date

Other

Thu, 30 Apr 2026 16:51:26 GMT

Origin-Cf-Ray

Other

9f480d1c4ef3393e-IAD

Perf

Other

7402827104

X-Nextjs-Cache

Other

HIT

X-Nextjs-Prerender

Other

1, 1

X-Nextjs-Stale-Time

Other

300

X-Response-Time

Other

17

X-Served-By

Other

t4_a

X-Transaction-Id

Other

af8316c9ccb3404f

cf-cache-status: DYNAMIC
cf-ray: 9f480d1c4ef3393e-IAD
date: Thu, 30 Apr 2026 16:51:26 GMT
origin-cf-ray: 9f480d1c4ef3393e-IAD
perf: 7402827104
x-nextjs-cache: HIT
x-nextjs-prerender: 1, 1
x-nextjs-stale-time: 300
x-response-time: 17
x-served-by: t4_a
x-transaction-id: af8316c9ccb3404f

Recommendations

Enable compression (gzip/brotli) to improve performance