SEOptimer’s Meta Viewport Tag Checker scans your webpage to ensure the correct Meta viewport tag is in place.
The Viewport is a Meta Tag within the page's HTML which gives the browser instructions for how to control the page's dimensions and scaling. Setting the Viewport is particularly important for mobile and tablet device responsiveness, as without it, the page can appear incorrectly sized and require zooming or scrolling to view content.
Make sure you include one Meta Viewport tag in the Head section of page HTML.