Security headers summary for one.one
This page validates the HTTP security headers returned by one.one, scoring its protection against common web attacks.
Below you can review which headers one.one 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 one.one
A higher score means one.one 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 one.one, as they provide the strongest protection against scripting and downgrade attacks.
Use cases
- Audit the security headers of one.one before or after a deploy.
- Identify missing headers that increase attack risk on one.one.
- Verify that one.one enforces HTTPS with HSTS.
- Support hardening reports and security reviews for one.one.
Frequently asked questions
Which security headers does one.one use?
This page lists the HTTP security headers present on one.one, such as CSP, HSTS, X-Frame-Options and X-Content-Type-Options, along with their values.
Does one.one have a Content-Security-Policy?
The results show whether one.one sends a Content-Security-Policy header and whether its value is considered secure.
Does one.one enforce HTTPS with HSTS?
The Strict-Transport-Security section indicates whether one.one forces HTTPS and for how long, including includeSubDomains and preload flags.
Why does one.one have a low security score?
A low score means one.one 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 one.one 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.