Domain name popularity depends on factors like visitors, alexa, design, architecture, contents on the website , images and number of links pointing to your website, social site linking. You will need to review the all links connected to your website. You should remove the bad links that is spam links. Internal linking should be proper.
Use the as much as top ranked keywords. Keywords used t play the main role in domain popularity.
Your website should be responsive that is it should load on mobile and desktop version. Page loading speed should be proper for that you should optimize your website.
So you will need to concentrate on all these factors to increase the popularity of your domain.