Why it matters to a buyer
A site with visitors spread across several countries can have a fast load time for visitors near its origin server and a noticeably slower one for everyone else, and since page speed directly affects both conversion rate and Core Web Vitals, that uneven experience is also an uneven business outcome. For a buyer with an international audience, or one expanding into a new region, confirming a CDN is actually in use, and configured correctly, is a quick, foundational check worth making early.
How it is measured or applied
Static assets, images, CSS, JavaScript, and often full pages for content that does not change per visitor, are cached at edge locations around the world, so a returning or new visitor's request is served from the nearest edge node rather than travelling to a single origin server every time. It is set up through the hosting platform directly, through most modern web frameworks and Vercel deployments by default, or through a dedicated CDN provider layered in front of an existing host. Its effect is measured through Largest Contentful Paint and time-to-first-byte in PageSpeed Insights, checked from testing locations in different regions to confirm the improvement is consistent globally.
Sources
- CDN (Content Delivery Network), MDN Web Docs
