CDN integration in Wordpress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a CDN and why is it used in web applications?

A CDN (Content Delivery Network) is a network of servers spread across different locations. It stores copies of website content to deliver it faster to users based on their location. It reduces load time and improves user experience.

beginner

How does CDN integration improve WordPress site performance?

CDN integration caches static files like images, CSS, and JavaScript on servers near users. This reduces the distance data travels, lowers server load, and speeds up page loading times.

intermediate

What are the common steps to integrate a CDN with a WordPress site?

1. Choose a CDN provider. 2. Configure CDN URL or pull zone. 3. Update WordPress settings or use a plugin to rewrite URLs for static content. 4. Test to ensure content loads from CDN.

intermediate

What is a 'pull zone' in CDN terminology?

A pull zone is a CDN setup where the CDN fetches content from your origin server only when a user requests it. The content is then cached on CDN servers for future requests.

advanced

Name one potential challenge when integrating a CDN with WordPress and how to solve it.

Challenge: Mixed content errors when using HTTPS. Solution: Ensure CDN supports HTTPS and update all URLs to use HTTPS to avoid browser warnings.

What does a CDN primarily help improve for a website?

A Number of plugins

B Database size

C Server CPU usage only

D Page load speed

A CDN improves page load speed by delivering content from servers closer to the user.

Which type of content is typically served by a CDN?

A Static files like images and CSS

B Dynamic database queries

C User login credentials

D Server-side scripts

CDNs cache and serve static files to reduce load times.

In WordPress, what is a common way to rewrite URLs to use a CDN?

A Disabling all plugins

B Changing PHP version

C Using a CDN plugin

D Editing wp-config.php to remove database

CDN plugins help rewrite URLs for static content to point to the CDN.

What is a pull zone in CDN integration?

A CDN fetches content from origin on demand

B CDN pushes content to origin server

C User uploads content directly to CDN

D CDN disables caching

Pull zone means CDN pulls content from your server when requested.

What issue can arise if CDN URLs use HTTP but your site uses HTTPS?

A Plugin conflicts

B Mixed content warnings in browsers

C Database corruption

D Faster page loads

Using HTTP content on an HTTPS site causes mixed content warnings.

Explain the main benefits and steps to integrate a CDN with a WordPress website.

Think about how a CDN works and what you need to do in WordPress to use it.

Describe what a pull zone is and why it is useful in CDN integration.

Consider how CDN gets content from your server.