Blucube

<p>If your site has an SSL certificate you might find that you can access the site via both SSL (https) and non-SSL (http) URLs. This is a bad idea for security, and for SEO, as it can look like duplicate content on different URLs.</p>
<p>The answer to this is to redirect requests to non-SSL (http) URLs over to their SSL (https) equivalents using something called a 301 redirect. This tells the client (and search engines) that the resource they are looking for should always be accessed over SSL.  This plugin offers two methods to achieve this:</p>
<ul>
<li>By intercepting WordPress pages at header time, and if they are not already being requested over HTTPS sending a 301 redirect header, or</li>
<li>By adding mod_rewrite rules in the .htaccess file to redirect all requests to their HTTPS equivalents using 301 redirects.</li>
</ul>
<p>Optionally, this plugin can also set <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security" rel="nofollow ugc">HSTS</a> headers for you, and make sure that all requests use the same hostname (i.e. fixing the issue where many sites can be accessed using both www. and non-www. URLs).</p>


Simple SSL Redirects

Lightweight plugin to ensure access via SSL/HTTPS. Uses 301 (permanent) redirects for SEO benefits. Optionally sets HSTS and forces canonical domain.

Studio Be4

<p>Security Headers & Caching is a comprehensive WordPress plugin that helps protect your website by implementing essential HTTP security headers and optimizing performance through intelligent caching mechanisms. Compatible with all hosting providers including Aruba, SiteGround, Bluehost, and more.</p>
<h4>Key Features</h4>
<ul>
<li><strong>Easy Configuration</strong> – Simple admin interface to enable/disable security headers</li>
<li><strong>Multiple Security Headers</strong> – Comprehensive security header support</li>
<li><strong>Smart Caching</strong> – Configurable cache duration for better performance</li>
<li><strong>Universal Compatibility</strong> – Works with all hosting providers</li>
<li><strong>No Conflicts</strong> – Compatible with popular security and caching plugins</li>
<li><strong>Translation Ready</strong> – Full internationalization support</li>
</ul>
<h4>Security Headers Included</h4>
<ul>
<li><strong>X-Powered-By</strong> – Removes server technology information to prevent targeted attacks</li>
<li><strong>Content-Security-Policy (CSP)</strong> – Controls which resources can be loaded to prevent XSS attacks</li>
<li><strong>Strict-Transport-Security (HSTS)</strong> – Forces HTTPS connections for enhanced security</li>
<li><strong>X-XSS-Protection</strong> – Enables XSS filtering in older browsers</li>
<li><strong>X-Frame-Options</strong> – Prevents clickjacking attacks by controlling iframe embedding</li>
<li><strong>X-Content-Type-Options</strong> – Prevents MIME type sniffing</li>
<li><strong>Referrer-Policy</strong> – Controls how much referrer information is shared</li>
<li><strong>Permissions-Policy</strong> – Controls browser features and APIs</li>
</ul>
<h4>Caching Features</h4>
<ul>
<li>Configurable cache duration (seconds)</li>
<li>Automatic cache headers management</li>
<li>Compatible with CDN services</li>
<li>No conflict with existing cache plugins</li>
</ul>
<h4>Why Security Headers Matter</h4>
<p>Security headers are HTTP response headers that tell your browser how to behave when handling your website’s content. They help protect against:</p>
<ul>
<li>Cross-Site Scripting (XSS) attacks</li>
<li>Clickjacking attempts</li>
<li>Code injection attacks</li>
<li>MIME type sniffing</li>
<li>Protocol downgrade attacks</li>
<li>And much more…</li>
</ul>
<h4>Developer Friendly</h4>
<p>The plugin provides filters for developers to customize headers:</p>
<ul>
<li><code>shc_security_headers</code> – Filter to modify security headers array</li>
</ul>
<h4>Test Your Security</h4>
<p>After installing and configuring the plugin, test your site’s security at:<br />
* <a href="https://securityheaders.com/" rel="nofollow ugc">Security Headers</a><br />
* <a href="https://observatory.mozilla.org/" rel="nofollow ugc">Mozilla Observatory</a></p>
<h4>Privacy</h4>
<p>This plugin does not collect, store, or transmit any user data. It only modifies HTTP response headers sent by your server.</p>
<h3>Developer Documentation</h3>
<h4>Filters</h4>
<p><strong>shc_security_headers</strong></p>
<p>Modify the security headers before they are sent.</p>
<pre><code>add_filter( 'shc_security_headers', function( $headers ) {
    // Add custom header
    $headers['X-Custom-Header'] = 'custom-value';

    // Modify existing header
    $headers['X-Frame-Options'] = 'DENY';

    return $headers;
} );
</code></pre>
<h4>Constants</h4>
<ul>
<li><code>SHC_VERSION</code> – Plugin version number</li>
<li><code>SHC_PLUGIN_DIR</code> – Plugin directory path</li>
<li><code>SHC_PLUGIN_URL</code> – Plugin directory URL</li>
<li><code>SHC_PLUGIN_BASENAME</code> – Plugin basename</li>
</ul>
<h3>Support</h3>
<p>For support, feature requests, or bug reports, please visit:<br />
* <a href="https://www.studiobe4.it" rel="nofollow ugc">Plugin Website</a></p>
<h3>Credits</h3>
<p>Developed by <a href="https://www.studiobe4.it" rel="nofollow ugc">Studio Be4</a> – Web Design & Development Agency</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later.</p>


Security Headers & Caching

Enhance your WordPress site security with HTTP security headers and improve performance with smart caching. Works with all hosting providers.

Simple SSL Redirects vs Security Headers & Caching