Hi all, I do SEO for a local business and have their site ranked number 1 for their main keyword and 3 secondary keywords and continue to work on it to keep it there (competitive niche). They're now changing their business name/brand name and have a new domain and new website. They're asking me to 'change' the old domain to the new domain so they can keep their first place on Google....what do I do? I've never done this before and don't want to screw it up. Is the best option to set up a 301 redirect instruction in the .htaccess of the current (old) website? I need to pass on the authority so they stay at number 1. Big contract and big money being spent so need to do this right. Any advice would be hugely appreciated!