The migration process begins with a thorough assessment of your current theme's architecture, identifying all customisations, integrations, and dependencies that must be preserved or reimplemented. This discovery phase is crucial for understanding the scope of work and potential challenges. Australian businesses must pay particular attention to compliance requirements, including privacy policy implementations under the Privacy Act 1988 and accessibility standards mandated by the Disability Discrimination Act.
Content migration represents the most critical phase of the process. Every piece of content must be carefully mapped from the old structure to the new, ensuring URLs are properly redirected to maintain SEO value. This includes not just pages and posts, but also media libraries, user data, and any custom post types your business relies on. Special attention must be given to e-commerce elements, ensuring product catalogues, customer accounts, and transaction histories transfer seamlessly.
Performance optimisation during migration offers an opportunity to implement best practices that may have been overlooked in your legacy setup. This includes image optimisation, lazy loading implementation, CDN configuration for Australian audiences, and caching strategies that significantly improve load times. Modern themes also provide better foundation for Core Web Vitals optimisation, which has become increasingly important for search rankings since Google's page experience update.