Website Migration is the process of moving a website to a new platform, domain, structure, host, design, or URL system.
It matters because development decisions affect speed, security, scalability, tracking, SEO, and maintenance. A site that looks good but is fragile or hard to update can quietly hold back every marketing channel.
Example
An old service URL changes during a redesign. The migration plan maps it to the most relevant new page, preserves useful content and metadata, and checks redirects and internal links after launch.