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 A+, 100 out of 100.

    DevOpser Lite lite.devopser.io

    Make a free landing page with fully working forms in 90 seconds using AI - edit with AI or drag and drop editor - and get leads straight to your inbox.

    site-builder · 9 of 9 headers · checked 2026-10-04

  2. Grade A+, 100 out of 100.

    DevOpser Stores stores.devopser.io

    Describe what you sell and AI builds a digital storefront with Stripe checkout and instant download delivery in about 90 seconds, no code.

    site-builder · 9 of 9 headers · checked 2026-10-03

  3. Grade A, 90 out of 100.

    Ghost ghost.org

    Open-source publishing with built-in newsletters and paid subscriptions, run by a nonprofit with no investors.

    site-builder · 7 of 9 headers · checked 2026-10-04

  4. Grade B, 70 out of 100.

    Webflow webflow.com

    Visual website builder that outputs production HTML and CSS, with a built-in CMS, hosting, and interactions designed without writing code.

    site-builder · 5 of 9 headers · checked 2026-10-09

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