John Mueller from Google advises placing JavaScript code underneath the HTML element to ensure that search engines can clearly understand your website.

Scan through the CSS code and and locate the section governing the header. It begins with a hash symbol, and will look like this: Add some CSS code to position the header.

* Insert customized JavaScript code, CSS, HTML or even plain text to header, footer or body. * Insert Google Analytics, facebook pixel or any other 3rd party marketing script. * Simple interface to ...

Google's John Mueller said on Twitter that if you cannot have a clean header in your source code where Google can fully interpret the hreflang, then you are out of luck. Google said either fix the ...