Flex Fields

Flex SSL is a lightweight WordPress plugin designed to secure your website by enforcing HTTPS across your entire site. Key features include:
<ul>
<li>Force HTTPS: Automatically redirect all HTTP requests to HTTPS.</li>
<li>Auto-Update URLs: Change WordPress site and home URLs from HTTP to HTTPS.</li>
<li>Cloudflare/Proxy Support: Detects HTTPS headers from Cloudflare or other reverse proxies to avoid redirect loops.</li>
<li>Security Headers: Optionally add HSTS, X-Frame-Options, X-XSS-Protection, and other security headers.</li>
<li>Mixed Content Fixer: Automatically correct HTTP links in your content to prevent browser warnings.</li>
<li>SSL Status: View current SSL status and certificate expiry date.</li>
<li>Redirect Options: Choose between 301 (permanent) and 302 (temporary) redirects.</li>
<li>Logs & Reports: Monitor changes and events in a log system.</li>
<li>Let’s Encrypt Integration (Coming Soon): Plan to automatically generate and renew SSL certificates.</li>
</ul>
<h3>License</h3>
Flex SSL is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.
For more details, see https://www.gnu.org/licenses/gpl-2.0.html.

Flex SSL

Enables SSL & forces HTTPS on WordPress, updating URLs & adding security headers. Supports reverse proxies & soon integrates Let's Encrypt.

Flex SSL vs Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)