Answer 1

Many websites have the same logo and navigation repeated on most pages. If this is what you mean by "repeating zone", the best solution depends on what language and web framework you're using.

Most MVC frameworks including ASP.net MVC, ASP.net Core MVC, ASP.net Core Razor pages, Laravel support a layout that is common to many pages and is a great place to store your common logo, and menu.

ASP.net forms supports master pages for the common elements.

For plain PHP, you could include the same PHP header and footer script to print out those sections.