What should agencies compare between Wix, Squarespace, and custom CMS solutions?

Compare ability to manage page titles, canonicals, redirects, robots directives, structured data, local pages, responsive layouts, and analytics. Test important features on a real trial page instead of assuming they are absent or universal. Add considerations for backups, exportability, forms, permissions, accessibility, and ongoing updates. A managed builder may be right for a simple site; custom systems can suit unusual workflows but add maintenance responsibility. Recommend based on the business’s actual requirements and operator capacity.