What is Cloudflare?
Cloudflare is a website acceleration service. When Cloudflare is enabled on your domain, requests from your visitors will be sent to Cloudflare's global system instead of your hosting account. Cloudflare has servers at dozens of cities world wide so your visitors can load pages from Cloudflare, which is much faster than loading content directly from your hosting account.
Cloudflare also caches and optimizes content from your website, meaning your website loads even faster and uses less bandwidth. Their system can also detect attacks and block them, which will further decrease bandwidth usage and make your website safer.
And the best thing is that you don't need to make any changes to your website to enjoy these benefits. Cloudflare can accelerate any type of websites, from static pages to frequently updated sites. All you have to do is enable Cloudflare through your control panel!