HTTP Headers Analysis for https://lichess.org

Detected Technologies from Headers

See all in URL Inspect 1

Nginx

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=63072000; includeSubDomains; preload

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

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Present

screen-wake-lock=(self "https://lichess1.org"), microphone=(self), fullscreen=(self); +1 more

Recommendations

• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)

Performance Headers

Connection

Performance

close

Vary

Performance

Accept

connection: close
vary: Accept

Caching Headers

Cache-Control

Caching

no-cache, no-store, must-revalidate

Expires

Caching

0

cache-control: no-cache, no-store, must-revalidate
expires: 0

Content Headers

Content-Length

Content

38112

Content-Type

Content

text/html; charset=utf-8

content-length: 38112
content-type: text/html; charset=utf-8

Server Headers

Server

nginx

server: nginx

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: lila2=e9e43c83f7fd35e08bd691481e9a0972ee3512eb-sid=vQ3MeSrwTpLKztSQ9a8hKs; Max-Age=315360000; Expires=Sat, 13 Sep 2036 18:06:30 GMT; SameSite=Lax; Path=/; Domain=lichess.org; Secure; HTTPOnly

Other Headers

Date

Other

Wed, 16 Sep 2026 18:06:30 GMT

Link

Other

URL https://lichess.org

rel=canonical

date: Wed, 16 Sep 2026 18:06:30 GMT
link: <https://lichess.org>; rel="canonical"

Recommendations

Enable compression (gzip/brotli) to improve performance