Google Analytics is a free web analytics service that tracks and reports website traffic.
Iamport is an information technology company based in South Korea.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Kakao platform provides various services such as Kakao Talk, Kakao Talk Channel, Kakao Story as well as Kakao Pay, Kakao Commerce, Kakao Page provided by the subsidiaries. Users can use all Kakao platform services with a united account called Kakao Account.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Summernote is an open-source JavaScript library that offers a feature-rich WYSIWYG editor for web applications, allowing users to create and edit formatted content in a familiar word processor-like interface.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.