Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
JivoChat is a live chat solution for websites offering customizable web and mobile chat widgets.
Lightbox is small javascript library used to overlay images on top of the current page.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PagSeguro is an online or mobile payment-based ecommerce service for commercial operations.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.