How do I add the “verified” checkmark to my feed?

The Instagram API does not offer any information about whether a feed is from a verified account or not so this is something you would need to add with some custom Javascript and some configuration of the feed.

Follow these steps:

1) Add a class to the feed: [instagram-feed class="verified"]

2) Add the following to the plugin’s Custom JavaScript section:

$('.verified .sb_instagram_header h3').append('');

3) Add the following to the Custom CSS section:

.sb_verified {
    background-image: url(//instagramstatic-a.akamaihd.net/h1/sprites/core-sprites-6625b8.png);
    background-repeat: no-repeat;
    background-position: -411px -409px;
    height: 18px;
    width: 18px;
    display: block;
    float: right;
    margin-left: 3px;
}