Encyclopedia of Terms AllABCDEFGHIJKLMNOPQRSTUVWXYZ X X-Frame-Options A security HTTP header that prevents a page from being displayed in a frame, protecting... Learn More → XML Sitemap A structured XML file that lists all important pages of a website so search engines... Learn More → XML-RPC A protocol that allows WordPress to communicate with external apps, used by features like mobile... Learn More → XSS (Cross-Site Scripting) A security vulnerability where malicious scripts are injected into trusted websites, allowing attackers to steal... Learn More →
