How Does Facebook and Google Load So Fast?

4 min readJun 14, 2022


The secret technology that you can also use to speed up your own sites.

Photo by PhotoMIX Company:

Companies like FB and Google have a complex tech stack and there is a lot that they do but the most important aspect of their fast web speed is a technology called CDN and Edge computing.

What is a content delivery network (CDN)?

A CDN is an extensive distributed system of servers deployed in multiple data centers across the Internet. The goal of a CDN is to serve content to end-users with high availability and high performance.

CDNs began as a way to improve the performance of web applications by caching static content at edge locations closer to the user. Today, CDNs are used to deliver a wide variety of content, including web applications, streaming media, software downloads, and social media.

One of the most popular CDNs is 5centsCDN 5CentsCDN has over 1150+ PoPs in over 130 countries. 5CentsCDNs Edge Platform is one of the largest distributed systems in the world.

How do CDNs work?

A CDN is a system of distributed servers that delivers content to users based on their geographic location.

The CDN providers operate a network of servers in multiple data centers around the world. When a user requests content from a website or application, the CDN routes the request to the nearest server in the network.

The CDN then delivers the content to the user from the nearest server, which helps to improve performance and reduce latency.

Why is CDN so important for the fast web?

A CDN, or content delivery network, is an extensive distributed system of servers deployed across multiple Internet data centers. Its primary purpose is to deliver content to end-users with high availability and performance.

Many businesses and organizations today rely on CDNs to ensure that their websites, applications, media streaming services, and software downloads are delivered quickly and reliably to users worldwide.

CDNs have become an essential part of how the Internet works and are a vital consideration for any business or organization that needs to deliver content online.

What are the benefits of using a CDN?

There are many benefits of using a CDN, including:

- Improved performance and scalability. CDNs are designed to deliver content at high speeds and with low latency, making them ideal for applications that handle large amounts of traffic.

- Enhanced reliability and redundancy. CDNs use multiple data centers, so your content is always available even if one data center goes offline.

- Greater security. CDNs can help to protect your content from denial of service attacks and other threats.

- Reduced costs. CDNs can save money by offloading traffic from your servers and reducing bandwidth requirements.

Some of the potential disadvantages of using a CDN include:

- Implementation. Implementing a CDN can be complex and may require significant time and resources.

- Management. Managing your CDN effectively requires expertise and experience, especially if your business has a large website or application with many users.

- Reliability. While CDNs are generally reliable, there can be issues with downtime and outages that impact performance and user experience.

So, before deciding whether to use a CDN for your website or application, it is important to carefully evaluate all of the pros and cons to understand the potential costs and benefits for your business.

Ultimately, the key is to find a CDN that meets your specific needs and priorities.

How do I choose the right CDN for my needs?

When choosing a CDN, there are many factors to consider, including:

- The type of content you need to deliver. A traditional CDN will be sufficient if you need to deliver static content, such as HTML pages and images. However, if you need to deliver dynamic content, such as media streaming or software downloads, you will need an application CDN.

- The geographical location of your users. If most of your users are located in North America, you will want to choose a CDN with data centers in that region.

- The performance and scalability requirements of your content. For example, some CDNs perform better than others, and some also have different capacity limits that may affect the performance of your applications.

  • The cost. Most CDNs offer a range of pricing plans to suit different needs, so you will need to consider your budget when choosing a CDN provider carefully.

What are some things to consider when choosing a Content Delivery Network (CDN)?

There are many different things to consider when choosing a CDN, including cost, ease of use, and the specific features and benefits that you need. Some important factors to consider include:

・The number of servers and locations that are offered by the CDN provider

・The level of support and customer service provided by the provider

・The types of caching and optimization features offered by the CDN, such as minification and image optimization

・The level of security and redundancy that is provided by the CDN

Ultimately, choosing a CDN should be an individualized process based on your specific needs, website requirements, and budget. By taking these factors into consideration, you can choose the CDN that is right for your business.

Hope it helped.

Follow me on medium, I write on topics like SaaS Marketing, Online Business, and Sales Funnel Strategies.

Hit the “subscribe to email” button to get updates every time I publish a new article.

Want to hire me for your projects? check out my profile.

Ritesh Osta
I Help Tech & Online Businesses Scale Fast using Sales Funnel Strategies.




Helping B2B and SaaS companies increase sales velocity using Funnel Experience Framework. Visit to read more..