This is a tag to let the search engines know what language your website content is. Here is an example of it in use.
<link rel="alternate" href="https://rocksolidseo.com" hreflang="en-us" />This is a tag to let the search engines know what language your website content is. Here is an example of it in use.
<link rel="alternate" href="https://rocksolidseo.com" hreflang="en-us" />