Viewport resizing comes to the WordPress admin bar
This tiny plugin adds the viewport meta tag with zooming permission to give your users the ability to zoom in your website with mobile browsers.
WordPress optimization plugin that enables jQuery image lazy loading.
Captures the viewport size of visitors' browser window and stores it as events in Google Analytics
A debugging tool that adds a small badge in the corner of the site, showing the current viewport width and height for finding media queries breakpoint
RSS link for this tag.