Specifically regarding: We must buy another domain, so we will lose our Search Engine Optimized domain. We spent last year 23k $ for SEO You will not lose S

Specifically regarding: We must buy another domain, so we will lose our Search Engine Optimized domain. We spent last year 23k $ for SEO You will not lose Search Engine Rankings providing that you 301 your links to the new url - if you want them to go to specific pages you can also do that fairly easy with some .htaccess 301'ing instead of doing it through your registrar. Search Engines will then eventually replace your existing links with your new ones. NOTE: Sometimes, there may be a minimial loss in some rankings during this period however, if you continue with your SEO strategy then will go to their original positions and may improve (this is also dependant on other facts such as domain age, geo-targetting etc) Furthermore, you should try and get your links changed which are currently linking to your site to your new url by contacting the webmasters who will change them for you.