HTTP Headers Analysis for https://api.vercel.com

Detected Technologies from Headers

See all in URL Inspect 23

GitHub

YouTube

Algolia

AMP

Cal.com

Calendly

CodeSandbox

Contentful

Ethyca

Google Analytics

Google API JS Client

Google Conversion Tracking

Google DoubleClick

Google Search

Google Static File Front End

Google Tag Manager

Mux

Next.js

Sentry

Stripe

Twitter

Vercel

Google Cloud

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Basic

default-src; script-src; child-src; +7 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Present

origin-when-cross-origin

Permissions-Policy

Missing

Not configured

Recommendations

• Improve CSP by adding more specific directives and removing 'unsafe-inline'
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• 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

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

Caching Headers

Age

Caching

33

Cache-Control

Caching

public, max-age=0, must-revalidate

age: 33
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

Vercel

server: Vercel

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: _v-consent=%7B%22essential%22%3Atrue%2C%22analytics%22%3Atrue%2C%22marketing%22%3Atrue%2C%22functional%22%3Atrue%2C%22version%22%3A1%7D; Path=/; Max-Age=31536000; SameSite=Lax; Secure; Domain=.vercel.com
_v-anonymous-id=qzyzCyU4NRwhZkfMsr39x; Path=/; Max-Age=7776000; SameSite=Lax; Secure; Domain=.vercel.com
_v-anonymous-id-renewed=1; Path=/; Max-Age=86400; SameSite=Lax; Secure; Domain=.vercel.com

Other Headers

Date

Other

Sat, 04 Apr 2026 04:50:15 GMT

Feature-Policy

Other

fullscreen 'self'; camera 'none'

Link

Other

URL

/vc-ap-vercel-docs/_next/static/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=font crossorigin type=font/woff2

URL

/vc-ap-vercel-docs/_next/static/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=font crossorigin type=font/woff2

URL

/vc-ap-vercel-docs/_next/static/media/vercel-logotype-light.3pet4y_bv2m1m.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

URL

/vc-ap-vercel-docs/_next/static/media/vercel-logotype-dark.0pdt6ezgjl2wc.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

URL

/vc-ap-vercel-docs/_next/static/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=font crossorigin type=font/woff2

URL

/vc-ap-vercel-docs/_next/static/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=font crossorigin type=font/woff2

URL

/vc-ap-vercel-docs/_next/static/media/vercel-logotype-light.3pet4y_bv2m1m.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

URL

/vc-ap-vercel-docs/_next/static/media/vercel-logotype-dark.0pdt6ezgjl2wc.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

URL

/vc-ap-vercel-docs/_next/static/media/vercel-light.23p4dw77xj4pk.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

URL

/vc-ap-vercel-docs/_next/static/media/vercel-dark.05qiau0oi3y6n.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ

rel=preload as=image

X-Dns-Prefetch-Control

Other

on

X-Download-Options

Other

noopen

X-Matched-Path

Other

/flg~eyJhbGciOiJIUzI1NiJ9._f7-_v7-_f7-.FnAsHbGdBl72QT906ITwv_4iYeU7XV3iO1Hcy0r36K0/docs/rest-api

X-Nextjs-Stale-Time

Other

300

X-Vercel-Cache

Other

HIT

X-Vercel-Id

Other

iad1::iad1::hxhxr-1775278250181-e70d47f79f17

date: Sat, 04 Apr 2026 04:50:15 GMT
feature-policy: fullscreen 'self'; camera 'none'
link: </vc-ap-vercel-docs/_next/static/media/797e433ab948586e.p.3f30ggp2vw8zj.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </vc-ap-vercel-docs/_next/static/media/caa3a2e1cccd8315.p.400zotvijr2rn.woff2?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </vc-ap-vercel-docs/_next/static/media/vercel-logotype-light.3pet4y_bv2m1m.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="image", </vc-ap-vercel-docs/_next/static/media/vercel-logotype-dark.0pdt6ezgjl2wc.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="image", </vc-ap-vercel-docs/_next/static/media/vercel-light.23p4dw77xj4pk.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="image", </vc-ap-vercel-docs/_next/static/media/vercel-dark.05qiau0oi3y6n.svg?dpl=dpl_FesLkL3P6WcP8HLWYjVqJU2AmbmJ>; rel=preload; as="image"
x-dns-prefetch-control: on
x-download-options: noopen
x-matched-path: /flg~eyJhbGciOiJIUzI1NiJ9._f7-_v7-_f7-.FnAsHbGdBl72QT906ITwv_4iYeU7XV3iO1Hcy0r36K0/docs/rest-api
x-nextjs-stale-time: 300
x-vercel-cache: HIT
x-vercel-id: iad1::iad1::hxhxr-1775278250181-e70d47f79f17

Recommendations

Enable compression (gzip/brotli) to improve performance