Remake your website with additional features and functionality through simple method Create a new look and appearance of your site with additional features in an easy and simple way.. Customize the sites with all your needs, new imaginations and requirements just by a click. Extend your existing site with new features and behaviours through our website add-ons. Add-ons are a piece of software that easily adds new features and functionality in your existing site. Several types of website add-ons services are offered by us such as: Extensions, complete themes, search providers, dictionary and language packs, and plugins.