Can performance work change the design?
Some changes can preserve appearance, such as optimising image delivery. Other changes may affect media or interaction. Agree acceptable design changes before altering a visitor-facing element.
Is a score guaranteed?
No fixed score is promised. Results depend on the site, device, connection and third-party dependencies; the work should use a recorded baseline and repeatable checks on relevant pages.
How will changes be measured?
Measure the same representative routes and journeys before and after the agreed changes. Record the testing conditions and check that navigation, forms and important content still work.
How is the project scope agreed?
Agree the essential tasks, information, roles and acceptance examples before development. For website performance improvement, that means documenting important routes, loading behaviour and third-party scripts and separating launch requirements from later additions.
What should the proposal make clear?
Ask for the deliverables, external dependencies, ownership, testing and handover responsibilities to be named. The proposal should also explain commercial terms, exclusions and how changes to the agreed scope are handled.