1C-Bitrix is a system of web project management, universal software for the creation, support and successful development of corporate websites and online stores.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
JivoChat is a live chat solution for websites offering customizable web and mobile chat widgets.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
VK is a Russian online social media and social networking service.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.