Most WordPress themes displays the featured images when they are set on content editing screen and hides when the user unset the featured image i.e. post thumbnail.
Rocket Lazy Load is a simple but powerful plugin with a tiny (less than 2kb) lazy load script without any jQuery and others libraries. What all this script does is, it displays images on pages only when they are visible to your user’s eyes i.e. only when show up on screen with down scroll. Hence, this trick reduces the number of HTTP requests mechanism and improves your website’s loading time.
Featured Images for Categories is the brand new WordPress plugin that enables you to set featured images on your blog’s default and custom taxonomies like categories, tags and other custom taxonomy types etc. Not only this much but then you can easily display a gallery styled block of images using a widget or shortcode.
By default WordPress is not set to upscale small images and hence you are never guaranteed a certain size for a featured image format. This tutorial is on a simple WordPress plugin that enables upscaling of thumbnails for small media attachments in your WordPress site.
Now you can easily force featured image in your WordPress blog posts. If you are running a multi-author WordPress site, you can force your authors to add a featured image each and every time before publishing any new blog post.