XeroWP
Flex SSL
Flex SSL

Flex SSL

0/5 (0 ratings) 40 active installs Updated Sep 16, 2026
certificatecloudflarehttpssecurityssl
Download v1.2.1 Plugin Website
<strong>Settings</strong> – SSL status, Force HTTPS, mixed content, and security options.

<strong>Settings</strong> – SSL status, Force HTTPS, mixed content, and security options.

Flex SSL is a lightweight WordPress plugin designed to secure your website by enforcing HTTPS across your entire site. Key features include:

  • Force HTTPS: Automatically redirect all HTTP requests to HTTPS. Encoded and non-ASCII permalinks are preserved. Alias hosts fall back to the WordPress home URL.
  • Auto-Update URLs: Change WordPress site and home URLs from HTTP to HTTPS, with a stored backup you can revert.
  • Cloudflare/Proxy Support: Detects HTTPS headers from Cloudflare, Azure, CloudFront, and other reverse proxies to avoid redirect loops.
  • Security Headers: Optionally add HSTS (includeSubDomains is optional), X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
  • Mixed Content Fixer: Rewrites this site’s HTTP URLs to HTTPS in content, excerpts, attachments, srcset, scripts, and styles. External links are left unchanged. Tools can scan the front page for leftovers.
  • SSL Status: View certificate expiry, issuer, subject names, trust, and hostname match. Optional admin notices and email before expiry.
  • Redirect Options: Choose between 301 (permanent) and 302 (temporary) for GET. Non-GET requests use 307.
  • Logs, Tools, and Site Health: Monitor changes, test HTTPS, and see Flex SSL tests in Tools Site Health.
  • Recovery: FLEX_SSL_DISABLE in wp-config.php, Tools Revert URLs, and wp flex-ssl disable / wp flex-ssl revert-urls.

On Multisite, settings and URL updates are per site.

License

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.