Definition
A phased migration moves a website to Webflow section by section rather than all at once.
What is a phased migration and when is it the right choice?
A phased migration moves a website to Webflow section by section rather than all at once. Typically, new sections of the site go live on Webflow while the rest remains on the old platform, until the migration is complete.
Phased approaches make sense for large, complex sites (200+ pages), sites where business continuity is critical, or situations where budget or capacity needs to be spread over time. The tradeoff: running two platforms simultaneously adds technical complexity, especially around navigation, shared headers, and analytics tracking. There's also a risk of the project stalling mid-migration if priorities shift.
A phased migration requires clear architectural planning upfront to define which sections move first and how the two platforms interact during the transition period. It typically costs more in total than a big bang approach, though the cash flow is distributed differently.
Go deeper: How long does a Webflow migration take?, How to migrate to Webflow without losing SEO?
