What is Cloudflare?

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This article discusses Cloudflares content delivery network (CDN), and how it can help improve your web sites performance and security.

Cloudflare is a content delivery network (CDN). A CDN is a distributed network of servers that provides several advantages for a web site:

By caching web site content, Cloudflare helps improve page load speeds, reduce bandwidth usage, and reduce CPU usage on the server.

With a redundant network of servers worldwide, if a server experiences an issue, Cloudflares CDN simply fails over to use another server.

Cloudflare helps improve security by blocking threats before they even reach a site. Cloudflares CDN can also provide some protection againstDistributed Denial of Service (DDoS)attacks.

All managed hosting customers at A2 Hosting automatically get access to a free Cloudflare account.

Some features and services, such as SSL, require an upgrade to our Cloudflare

plans. Each upgraded Cloudflareplan isdomain specific;additional Cloudflare subscriptions are required for each additional domain.For more information about these plans,please see

When you activate Cloudflare on your account, your site becomes part of the Cloudflare network. This network routes web site traffic through Cloudflares global network of data centers. (To view a map of Cloudflares current data center locations, please visit

Cloudflare optimizes web content delivery by storing duplicates of static content (such as CSS, JavaScript and image files) on its servers. Your web site content is served from the Cloudflare server located nearest to your visitors, which decreases page load times. If a server in Cloudflares network is very busy, web traffic is automatically routed to the next server nearest to your visitors.

Cloudflares CDN also blocks threats and limits abusive bots before they reach your server. This helps increase security and reduce wasted bandwidth.

Cloudflare works for both static and dynamic web sites. However, Cloudflare is not suitable for web sites that stream video or audio directly from their origin server. Embedded videos, such as those from YouTube or Vimeo, however, are compatible with Cloudflare.

You can activate Cloudflare for your site through cPanel. If your account does not include cPanel, you can register directly on Cloudflares web site. For more information about how to set up Cloudflare for your account, please seethis article.

For more information about Cloudflare, please visit

Learn how to activate Cloudflare for your web site with just a few easy steps.

After you activate Cloudflare, you can configure it for your web site using cPanel. Learn how here.

Learn about the different options for using SSL on a Cloudflare-enabled account.

Railgun greatly speeds up delivery of non-cached web pages, and complements Cloudflares caching service. Read this article to learn more.

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