Auto SRI vs Security Headers & Caching

Auto SRI automatically adds Subresource Integrity (SRI) attributes to scripts and styles loaded from external sources. This improves security, protects against tampering, and enables strict Content Security Policy (CSP) setups. Features ✔ Adds SRI to all external and tags ✔ Supports WordPress-enqueued assets and raw HTML tags ✔ Supports async, defer, crossorigin, and multiline script tags ✔ Caches all hashes for performance ✔ Excludes admin panel (wp-admin) to prevent conflicts ✔ Automatically skips non-SRI-compatible providers: Google reCAPTCHA Google Fonts (fonts.googleapis.com / fonts.gstatic.com) WordPress.com widgets (widgets.wp.com) Dynamic concatenated resources Dynamic script loaders and runtime-inserted scripts ✔ Safe for Elementor, WooCommerce, CookieYes, Jetpack, GoDaddy hosting, etc. Why some scripts are excluded This plugin automatically excludes: Google reCAPTCHA (google.com/recaptcha) Google Fonts stylesheets (fonts.googleapis.com) Google Fonts font files (fonts.gstatic.com) WordPress.com widgets (widgets.wp.com) Dynamic concatenated resources (/_static/??) Other dynamic inline loaders (CookieYes, wsimg, ywxi, etc.) Want to whitelist a dynamic provider? Contact us at [email protected]. * Other dynamic inline loaders (CookieYes, wsimg, ywxi, etc.) Want to whitelist a dynamic provider? Contact us at [email protected]. These exclusions prevent: CORS failures Integrity mismatch blocking Google reCAPTCHA from breaking Google Fonts from disappearing Layout shifts caused by blocked assets

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. Key Features Easy Configuration – Simple admin interface to enable/disable security headers Multiple Security Headers – Comprehensive security header support Smart Caching – Configurable cache duration for better performance Universal Compatibility – Works with all hosting providers No Conflicts – Compatible with popular security and caching plugins Translation Ready – Full internationalization support Security Headers Included X-Powered-By – Removes server technology information to prevent targeted attacks Content-Security-Policy (CSP) – Controls which resources can be loaded to prevent XSS attacks Strict-Transport-Security (HSTS) – Forces HTTPS connections for enhanced security X-XSS-Protection – Enables XSS filtering in older browsers X-Frame-Options – Prevents clickjacking attacks by controlling iframe embedding X-Content-Type-Options – Prevents MIME type sniffing Referrer-Policy – Controls how much referrer information is shared Permissions-Policy – Controls browser features and APIs Caching Features Configurable cache duration (seconds) Automatic cache headers management Compatible with CDN services No conflict with existing cache plugins Why Security Headers Matter Security headers are HTTP response headers that tell your browser how to behave when handling your website’s content. They help protect against: Cross-Site Scripting (XSS) attacks Clickjacking attempts Code injection attacks MIME type sniffing Protocol downgrade attacks And much more… Developer Friendly The plugin provides filters for developers to customize headers: shc_security_headers – Filter to modify security headers array Test Your Security After installing and configuring the plugin, test your site’s security at: * Security Headers * Mozilla Observatory Privacy This plugin does not collect, store, or transmit any user data. It only modifies HTTP response headers sent by your server. Developer Documentation Filters shc_security_headers Modify the security headers before they are sent. 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; } ); Constants SHC_VERSION – Plugin version number SHC_PLUGIN_DIR – Plugin directory path SHC_PLUGIN_URL – Plugin directory URL SHC_PLUGIN_BASENAME – Plugin basename Support For support, feature requests, or bug reports, please visit: * Plugin Website Credits Developed by Studio Be4 – Web Design & Development Agency License This plugin is licensed under the GPLv2 or later.