A content delivery network, or content distribution network, is a geographically distributed network of proxy servers and their data centers.

Semrush contributor Erika Varagouli has published an in-depth article on Content Delivery Networks and how they can affect your websites.

She says, “CDNs can read your IP address and determine your location on the network. When a user loads a web page, the closest CDN sends a cached version of the web page’s content through to the user’s web browser.

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Image: Global Dots

Loading the cached version web page can decrease your page load speed and increase your users’ experience. It’s common for webmasters to use multiple CDNs in different regions to serve users across the world.”

What Are Content Delivery Networks & How Can They Impact Your Site?

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