Thousands of programmers around the world create WordPress add-ons and different features for SEO improvement, contact forms, marketing tools and everything else that can be useful for the site. Most of these add-ons are free. WordPress is the most popular site management system and has more add-ons than any other engine. If you get the idea of adding a new thing to your site – it’s very likely that someone has created such tool and you just need to install it.