HTTP Headers Analysis for https://dat09vn.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

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

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
• 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

916542

Cache-Control

Caching

public, max-age=0, must-revalidate

Etag

Caching

"95f66d4573a5b1a1ef2e9b0c7cacc857"

age: 916542
cache-control: public, max-age=0, must-revalidate
etag: "95f66d4573a5b1a1ef2e9b0c7cacc857"

Content Headers

Content-Disposition

Content

inline

Content-Length

Content

114813

Content-Type

Content

text/html; charset=utf-8

content-disposition: inline
content-length: 114813
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

Set-Cookie

Cookies

set-cookie: NEXT_LOCALE=en; Path=/; SameSite=lax

Other Headers

Date

Other

Wed, 06 May 2026 04:36:52 GMT

Link

Other

URL https://dat09vn.com/en

rel=alternate hreflang=en

URL https://dat09vn.com/vi

rel=alternate hreflang=vi

URL https://dat09vn.com/

rel=alternate hreflang=x-default

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::2bl8m-1778042211882-0d1f52319428

date: Wed, 06 May 2026 04:36:52 GMT
link: <https://dat09vn.com/en>; rel="alternate"; hreflang="en", <https://dat09vn.com/vi>; rel="alternate"; hreflang="vi", <https://dat09vn.com/>; rel="alternate"; hreflang="x-default"
x-matched-path: /en
x-nextjs-prerender: 1
x-nextjs-stale-time: 300
x-vercel-cache: HIT
x-vercel-id: iad1::2bl8m-1778042211882-0d1f52319428

Recommendations

Enable compression (gzip/brotli) to improve performance