Azure is a cloud computing service for building, testing, deploying, and managing applications and services through Microsoft-managed data centers.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Optimizely is an experimentation platform that helps developers build and run A/B tests on websites.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Wistia is designed exclusively to serve companies using video on their websites for marketing, support, and sales.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.