Are unnecessary searches limited by local search engines ?

Tests

From how many letters is the data transmitted to search or auto-complete engines?

Are the most frequent searches cached?

Precisions

Using local search engines in the service allows users to access the information they need faster without having to browse the entire service. These search engines are therefore effective from the point of view of environmental efficiency and user assistance. On the other hand, local search engines do not have all the information to offer answers adapted to users and rely on remote resources. It is important to reduce the exchanges with these remote resources so as not to cancel out the benefit acquired by the use of the search engine.