HTTP Headers Analysis for https://javierzader.com

Detected Technologies from Headers

See all in URL Inspect 11

GitHub

Shields.io

BootstrapCDN

Giscus

Google Analytics

Google Fonts

Google Tag Manager

Next.js

Sanity

Vercel

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Good

default-src; script-src; style-src; +9 more 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

Present

camera=(), microphone=(), geolocation=(); +3 more

Recommendations

• Strengthen CSP by removing 'unsafe-eval'

Performance Headers

Connection

Performance

close

Vary

Performance

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

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

Caching Headers

Age

Caching

603

Cache-Control

Caching

public, max-age=0, must-revalidate

Etag

Caching

"epz4gqlwvu4kfo"

age: 603
cache-control: public, max-age=0, must-revalidate
etag: "epz4gqlwvu4kfo"

Content Headers

Content-Length

Content

213781

Content-Type

Content

text/html; charset=utf-8

content-length: 213781
content-type: text/html; charset=utf-8

Server Headers

Server

Vercel

X-Powered-By

Server

Next.js

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

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

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

Other Headers

Date

Other

Fri, 02 Oct 2026 17:28:24 GMT

Link

Other

URL https://www.javierzader.com/

rel=alternate hreflang=es

URL https://www.javierzader.com/en

rel=alternate hreflang=en

URL https://www.javierzader.com/

rel=alternate hreflang=x-default

X-Client-Ip

Other

216.246.40.169

X-Matched-Path

Other

/es

X-Nextjs-Prerender

Other

1

X-Nextjs-Stale-Time

Other

300

X-Vercel-Cache

Other

STALE

X-Vercel-Id

Other

iad1::iad1::zvh5g-1790962709011-6b3b0423987f

date: Fri, 02 Oct 2026 17:28:24 GMT
link: <https://www.javierzader.com/>; rel="alternate"; hreflang="es", <https://www.javierzader.com/en>; rel="alternate"; hreflang="en", <https://www.javierzader.com/>; rel="alternate"; hreflang="x-default"
x-client-ip: 216.246.40.169
x-matched-path: /es
x-nextjs-prerender: 1
x-nextjs-stale-time: 300
x-vercel-cache: STALE
x-vercel-id: iad1::iad1::zvh5g-1790962709011-6b3b0423987f

Recommendations

Enable compression (gzip/brotli) to improve performance

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