Security headers summary for criteo.net
This page validates the HTTP security headers returned by criteo.net, scoring its protection against common web attacks.
Below you can review which headers criteo.net sends, which are missing, and recommendations to harden the configuration.
What are HTTP security headers?
HTTP security headers are response headers that instruct the browser to apply protective policies, mitigating attacks such as XSS, clickjacking and content sniffing.
Key headers include Content-Security-Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options and Referrer-Policy.
How to interpret the headers of criteo.net
A higher score means criteo.net sends more of the recommended security headers with secure values. Missing headers are highlighted so you know what to add.
Focus first on CSP and HSTS for criteo.net, as they provide the strongest protection against scripting and downgrade attacks.
Use cases
- Audit the security headers of criteo.net before or after a deploy.
- Identify missing headers that increase attack risk on criteo.net.
- Verify that criteo.net enforces HTTPS with HSTS.
- Support hardening reports and security reviews for criteo.net.
Frequently asked questions
Which security headers does criteo.net use?
This page lists the HTTP security headers present on criteo.net, such as CSP, HSTS, X-Frame-Options and X-Content-Type-Options, along with their values.
Does criteo.net have a Content-Security-Policy?
The results show whether criteo.net sends a Content-Security-Policy header and whether its value is considered secure.
Does criteo.net enforce HTTPS with HSTS?
The Strict-Transport-Security section indicates whether criteo.net forces HTTPS and for how long, including includeSubDomains and preload flags.
Why does criteo.net have a low security score?
A low score means criteo.net is missing important headers or sends insecure values. The missing-headers and recommendations sections explain how to improve it.
Is the security headers check for criteo.net free?
Yes. The XploreNetHub Security Headers Validator is completely free, requires no sign-up and runs directly in your browser.
Related guides
- Security Headers Checklist — HSTS, CSP and HTTP headers before go-live.
- DNS and SSL Checklist — Steps and verification table before pointing a domain.