title: Redirect using htaccess based on referrer
body: <p>We only want users from a specific website to use our services. Is there a way to redirect all traffic that does not come from a specific referrer, to a website of our choosing, via htaccess? </p>
  
  <p>Also, this is for the first page only. So if they get to our site, they're going to browse a new page, and their referrer for the new page would apparently be the site they are already on. </p>
  
  <p>Thank you! </p>