Tools ranked by security headers

Tools ranked by the security headers their websites send. Checked automatically, re-checked every week, never paid for.

The letter grades the security headers a tool’s website sends, out of 100.

The bar under each tool is the nine checks, sized by weight: filled when the header is there, empty when it is missing. Missing headers open the door to man-in-the-middle attacks, malicious JavaScript, redirected forms and hijacked payments. How each one works, and how buyers put this in an RFP.

  1. Grade D, 40 out of 100.

    Sentry sentry.io

    Groups errors into issues and ties each one to the release, commit, and user session that caused it.

    error-monitoring · 3 of 9 headers · checked 2026-10-04

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