cdnjs is a free distributed JS library delivery service.
HubSpot is a marketing and sales software that helps companies attract visitors, convert leads, and close customers.
LiteSpeed is a high-scalability web server.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
Pinterest is an image sharing and social media service designed to enable saving and discovery of information.
WP Rocket is a caching and performance optimisation plugin to improve the loading speed of WordPress websites.