Really Simple SSL

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The really simple ssl plugin forces your complete site to go over https. Sometimes, hyperlinks referring to http are saved in your posts or pages. Tha

Author:Really Simple Plugins (profile at
WordPress version required:5.9
WordPress version tested:6.5.5
Plugin version:8.1.5
Added to WordPress repository:15-03-2015
Last updated:21-06-2024
Rating, %:98
Rated by:8593
Plugin URI:
Total downloads:154 566 207
Active installs:4 000 000+
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Easily improve site security with WordPress hardening, vulnerability detection and SSL certificate generation.

Really simple, effective and lightweight WordPress Security

Really Simple SSL is the most lightweight and easy-to-use security plugin for WordPress. It lays the foundation of your WordPress website’s security by leveraging your SSL certificate, scanning for possible vulnerabilities and implementing essential WordPress hardening features.

We believe that security should have the absolute minimum effect on website performance, user experience and maintainability. Therefore, Really Simple SSL is:

  • Lightweight: Every security feature is developed with a modular approach and with performance in mind. Disabled features won’t load any redundant code.
  • Easy-to-use: 1-minute configuration with short onboarding setup.

Security Features

Easy SSL Migration

Migrates your website to HTTPS and enforces SSL in just one click.

  • 301 redirect via PHP or .htaccess
  • Secure cookies
  • Let’s Encrypt: Install an SSL Certificate if your hosting provider supports manual installation.
  • Server Health Check: Your server configuration is every bit as important for your website security.

WordPress Hardening

Tweak your configuration and keep WordPress fortified and safe by tackling potential weaknesses.

  • Prevent code execution in the uploads folder
  • Prevent login feedback and disable user enumeration
  • Disable XML-RPC
  • Disable directory browsing
  • Username restrictions (block ‘admin’ and public names)
  • and much more..

Vulnerability Detection

Get notified when plugins, themes or WP core contain vulnerabilities and need appropriate action.

Improve Security with Really Simple SSL Pro

Protect your site with all essential security features by upgrading to Really Simple SSL Pro.

Advanced SSL enforcement

  • Mixed Content Scan & Fixer. Detect files that are requested over HTTP and fix it, both Front- and Back-end.
  • Enable HTTP Strict Transport Security and configure your site for the HSTS Preload list.

Security Headers

Security headers protect your site visitors against the risk of clickjacking, cross-site-forgery attacks, stealing login credentials and malware.

  • Independent of your Server Configuration, works on Apache, LiteSpeed, NGINX, etc.
  • Protect your website visitors with X-XSS Protection, X-Content-Type-Options, X-Frame-Options, a Referrer Policy and CORS headers.
  • Automatically generate your WordPress-tailored Content Security Policy.

Vulnerability Measures

When a vulnerability is detected in a plugin, theme or WordPress core you will get notified accordingly. With Vulnerability Measures, you can configure simple but effective measures to make sure that a critical vulnerability won’t remain unattended.

  • Force update: An update process will be tried multiple times until it can be assumed development of a theme or plugin is abandoned. You will be notified during these steps.
  • Quarantine: When a plugin or theme can’t be updated to solve a vulnerability, Really Simple SSL can quarantine the plugin.

Advanced Site Hardening

  • Choose a custom login URL
  • Automated File Permissions check and fixer
  • Rename and randomize your database prefix
  • Change the debug.log file location to a non-public folder
  • Disable application passwords
  • Control admin creation
  • Disable HTTP methods, reducing HTTP requests

Login Protection

Secure your website’s login process and user accounts with powerful security measures.

  • Two-Step verification (Email login)
  • Enforce strong passwords and frequent password change
  • Limit Login Attempts

With Limit Login Attempts you can configure a threshold to temporarily or permanently block IP addresses or (non-existing) usernames. You can also throw a CAPTCHA after a failed login (hCaptcha or Google reCaptcha)

Access Control

  • Restrict access to your site for specific regions.
  • Add specific IP addresses or IP ranges to the Blocklist or Allowlist.

Useful Links

Love Really Simple SSL?

If you want to support the continuing development of this plugin, please consider buying Really Simple SSL Pro, which includes some excellent security features and premium support.

About Really Simple Plugins

Our mission is to make complex WordPress requirements really easy. Really Simple SSL is developed by Really Simple Plugins.

For generating SSL certificates, Really Simple SSL uses the le acme2 PHP Let’s Encrypt client library, thanks to ‘fbett’ for providing it. Vulnerability Detection uses WP Vulnerability, an open-source initiative by Javier Casares. Want to join as a collaborator? We’re on GitHub as well!