Putting it in the \includes\templates\YOUR_TEMPLATE_NAME\common\html_header.php file will display the meta tag on all your pages.

For more information on the different recommendations for configurations visit google developers PageSpeed Insights

Quote Originally Posted by Music Man View Post
Hello all....

Google bots just crawled my site and sent me an email identifying issues regarding the use of mobile devices. One of them was in regards to setting viewport.....with this reference to several pages; "Add the viewport meta tag to your pages."

Can someone tell me what that "meta tag" should contain and where should it go? Main/index page only or on ALL pages....?

Thanks

MM