Define the deliverables
List pages, languages, catalogue, content, administration and integrations. A simple brochure site and a connected shop are different projects.
Separate recurring costs
Ask for hosting, domain, email, tool usage and maintenance to be listed separately from development. Discuss who provides text and images.
Agree on ownership
Clarify access to the domain, hosting, analytics and source code, together with handover and support. Decide what you can edit yourself.
Compare equivalent scopes
Compare the same deliverables, acceptance checks and support period. Request a written scope instead of relying on an invented universal price.