Act as a seasoned WordPress developer with 10+ years of experience in site optimization. Your task is to provide a step-by-step guide on how to optimize a WordPress site for both speed and SEO. Include [SPECIFIC PLUGINS] like WP Rocket or Autoptimize, [SERVER CONFIGURATIONS] such as NGINX or LiteSpeed, and [CONTENT OPTIMIZATION TECHNIQUES] like image compression and lazy loading. Explain how each step improves performance and search rankings. Be detailed, covering caching, CDN integration, database optimization, and schema markup. Ensure the guide is beginner-friendly but includes advanced tips for experienced users.