cdnjs is a free distributed JS library delivery service.
HighLevel is an all-in-one marketing and automation platform designed for marketing agencies and small businesses to manage CRM, marketing campaigns, sales funnels, appointment scheduling, and more.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Open Graph is a protocol that is used to integrate any web page into the social graph.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.