Talking about a content delivery network and SEO in the same sentence is a tricky one. A CDN can be a huge benefit to SEO, or it can hurt your site immensely, and it all comes down to configuration.
How a CDN Works
A content delivery network is sort of like an augment or a superpower for your website. It’s a way to make a $10-a-month web hosting package feel like a $100-a-month package. So what is it, and how does it work?
When you have a website, your website is hosted on a web server owned by your web host. The host’s server might be physically located in one position, or they might have three or four mirrors around the country or around the world, but the results are the same. Whenever someone wants to load your website, they send a message to the host’s server, which responds with the website data.
This is fine if, say, the data center is in Utah and the web user is in Ohio. It still works fine if the web user is in Florida. It works a little less fine if the user is in Panama, and even less fine if they’re in China. The further away, geographically, the longer it takes messages to go back and forth.
This is especially relevant with international traffic. Traffic from somewhere i…