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When to use a CDN instead of a local file?
If you have many GB or Terabytes of static data and a heavy load for access to that content, a CDN can help with that. However, small, local sites or lightly loaded sites rarely need such things and a CDN can only add one more complication to your set up, operation and workflow, such as caching problems.
When to perform local testing of your CDN settings?
It can be difficult to perform local testing of your CDN settings when developing and testing an application locally or in a staging environment. Search engine optimization (SEO). Content such as images and documents are served from a different domain when you use the CDN. This can have an effect on SEO for this content.
Is it better to use CDN for JS and similar resources vs local?
Will loading from a CDN be lighter on the server’s processor ram and i/o disk, or will it be worse since the executing document (eg. index.php) takes bit longer to finish there by hogging threads/mem/cpu cycles? Thanks all. The benefit of a CDN is not (and should not be) for you. It is for your customers / users.
Which is better a CDN or a web server?
The CDN servers are also likely setup to serve static content much faster then your origin server by specifically catering the web server for static content. Using a CDN vs traditional web hosting for delivering your static files such as CSS, JS, and images is commonly preferred.
What can a CDN do for your website?
A CDN allows for the quick transfer of assets needed for loading Internet content including HTML pages, javascript files, stylesheets, images, and videos. The popularity of CDN services continues to grow, and today the majority of web traffic is served through CDNs, including traffic from major sites like Facebook, Netflix, and Amazon.
How does a CDN load a user request?
So instead of a users browser loading these requests from your server they would be loaded via the CDN, there is no additional requests you are just changing where to send these requests (again as long as you are currently not using inline code).
When to use a CDN for static files?
The CDN should be used for all static files (.css/.js/images). Sometimes however javascript or css files can have dynamic aspect to them such as that it would include a unique user string or something of that sort. In this situation the CDN server would have to contact the origin server on every request which would defeat the purpose.