Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Clutch review widgets are stand-alone applications that you can embed on your website to show your dynamic ratings and reviews.
MkDocs is a static site generator, used for building project documentation.