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.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Razorpay is a provider of an online payment gateway that allows businesses to accept, process, and disburse payments.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.