HTTP Headers Analysis for https://www.criteo.com

Detected Technologies from Headers

See all in URL Inspect 4

Criteo

Nginx

Pantheon

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=300

Content-Security-Policy

Basic

script-src 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
• Improve CSP by adding more specific directives and removing 'unsafe-inline'
• 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

Accept-Encoding, Cookie, Cookie

accept-ranges: bytes
connection: close
vary: Accept-Encoding, Cookie, Cookie

Caching Headers

Age

Caching

477

Cache-Control

Caching

public, max-age=86400

age: 477
cache-control: public, max-age=86400

Content Headers

Content-Length

Content

526219

Content-Type

Content

text/html; charset=UTF-8

content-length: 526219
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: STYXKEY_geo_cc=US; Path=/; Max-Age=86400; SameSite=Lax; Secure

Other Headers

Date

Other

Mon, 11 May 2026 16:05:36 GMT

Link

Other

URL

https://www.criteo.com/wp-json/

rel=https://api.w.org/

URL

https://www.criteo.com/wp-json/wp/v2/pages/412784

rel=alternate title=JSON type=application/json

URL

https://www.criteo.com/

rel=shortlink

Via

Other

1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish

X-Cache

Other

HIT, HIT, MISS, MISS

X-Cache-Hits

Other

13, 0, 0, 0

X-Debug-Existing-Setcookie

Other

missing

X-Pantheon-Styx-Hostname

Other

styx-us-a-5fbd9fdf97-h7lcp

X-Served-By

Other

cache-chi-klot8100123-CHI, cache-ewr-kewr1740044-EWR, cache-ewr-kewr1740032-EWR, cache-ewr-kewr1740032-EWR

X-Styx-Req-Id

Other

229aec35-4d52-11f1-af55-723da983cf0c

X-Timer

Other

S1778515537.828410,VS0,VE11

date: Mon, 11 May 2026 16:05:36 GMT
link: <https://www.criteo.com/wp-json/>; rel="https://api.w.org/", <https://www.criteo.com/wp-json/wp/v2/pages/412784>; rel="alternate"; title="JSON"; type="application/json", <https://www.criteo.com/>; rel=shortlink
via: 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-cache: HIT, HIT, MISS, MISS
x-cache-hits: 13, 0, 0, 0
x-debug-existing-setcookie: missing
x-pantheon-styx-hostname: styx-us-a-5fbd9fdf97-h7lcp
x-served-by: cache-chi-klot8100123-CHI, cache-ewr-kewr1740044-EWR, cache-ewr-kewr1740032-EWR, cache-ewr-kewr1740032-EWR
x-styx-req-id: 229aec35-4d52-11f1-af55-723da983cf0c
x-timer: S1778515537.828410,VS0,VE11

Recommendations

Enable compression (gzip/brotli) to improve performance