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 C, 65 out of 100.

    Bruno usebruno.com

    API client that stores collections as plain-text files in your Git repo, no account or cloud sync.

    api-testing · 4 of 9 headers · checked 2026-10-04

  2. Grade C, 55 out of 100.

    Postman postman.com

    API client for building and sending HTTP, GraphQL and gRPC requests, organized into shareable collections with environments and scripted tests.

    api-testing · 5 of 9 headers · checked 2026-10-08

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