HTTP Headers Analysis for https://heroui.com

Detected Technologies from Headers

See all in URL Inspect 2

Next.js

Vercel

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=63072000

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

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

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

accept-ranges: bytes
connection: close
vary: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch

Caching Headers

Age

Caching

48129

Cache-Control

Caching

public, max-age=0, must-revalidate

Etag

Caching

"b25dbd800b2c7ebf843889dcbecf3417"

age: 48129
cache-control: public, max-age=0, must-revalidate
etag: "b25dbd800b2c7ebf843889dcbecf3417"

Content Headers

Content-Disposition

Content

inline

Content-Length

Content

410187

Content-Type

Content

text/html; charset=utf-8

content-disposition: inline
content-length: 410187
content-type: text/html; charset=utf-8

Server Headers

Server

Vercel

server: Vercel

CORS Headers

Access-Control-Allow-Origin

Cors

*

access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 01 Sep 2026 03:49:00 GMT

Link

Other

URL /.well-known/api-catalog

rel=api-catalog type=application/linkset+json

URL /.well-known/agent-skills/index.json

rel=describedby type=application/json

URL /.well-known/mcp

rel=service type=application/json

URL /.well-known/mcp/server-card.json

rel=service-desc type=application/json

X-Matched-Path

Other

/en

X-Nextjs-Prerender

Other

1

X-Nextjs-Stale-Time

Other

300

X-Vercel-Cache

Other

HIT

X-Vercel-Id

Other

iad1::wx8td-1788234540241-14adb5221331

date: Tue, 01 Sep 2026 03:49:00 GMT
link: </.well-known/api-catalog>; rel="api-catalog"; type="application/linkset+json", </.well-known/agent-skills/index.json>; rel="describedby"; type="application/json", </.well-known/mcp>; rel="service"; type="application/json", </.well-known/mcp/server-card.json>; rel="service-desc"; type="application/json", </.well-known/oauth-protected-resource>; rel="oauth-protected-resource"; type="application/json", </openapi.json>; rel="service-desc"; type="application/vnd.oai.openapi+json", </llms.txt>; rel="service-doc"; type="text/plain", </llms-full.txt>; rel="describedby"; type="text/plain"
x-matched-path: /en
x-nextjs-prerender: 1
x-nextjs-stale-time: 300
x-vercel-cache: HIT
x-vercel-id: iad1::wx8td-1788234540241-14adb5221331

Recommendations

Enable compression (gzip/brotli) to improve performance