Web security

HTTP security headers checker

Inspect the final response from a public website and see which common browser security headers are present.

Quick guide

What these headers actually tell you

Security headers let a website ask the browser to enforce protections around content loading, framing, referrer data, browser capabilities and HTTPS usage.

A missing header is not automatically a vulnerability, and some advanced cross-origin headers deliberately are not appropriate for every site. IPGetter shows what is present and explains the purpose without pretending there is one perfect configuration.

CSP

Controls which scripts, styles, images and other resources a page may load.

HSTS

Tells browsers to keep using HTTPS for a host after a secure visit.

Frame protection

X-Frame-Options or CSP frame-ancestors can restrict who may embed a page.

How it works

The final HTTP response headers are inspected for commonly used browser security controls. Presence is reported separately from whether a policy is suitable for a specific site.