Hreflang tags tell search engines which language and country version of a page should show to users. For example, if you have one page for the US and another for the UK, hreflang helps send the right version to the right audience. You add these tags in the page code or sitemap and link all versions together. Each page must also point back to the others correctly. If done wrong, search engines may ignore it. When setting up global pages, does using clear language targeting seem more important than many small changes?