A simple guide to supercharging your site with section.io

If you operate a website, a massive wave of traffic can be a very appealing idea. However, such a wave can also knock your site offline, or leave it crawling at slow speeds.

To avoid such an issue, you can employ the use of a CDN, or Content Delivery Network. A CDN is a network of servers that sit in front of your site and cache pages to speed up your site and reduce the load on your servers. This tutorial will be covering how to set up a free CDN with section.io, and configure it to work perfectly with your site.


This tutorial assumes that you already have the following:

  • A hosted website
  • A domain name pointing to that website
  • Permission to change the DNS records for that domain

Signing up for an account

Before doing anything else, you should create an account on section.io at https://www.section.io/sign-up/. It features a completely free 14 day trial, no credit card required.

signing up for an account

After signing up, you will be directed through the “Bootcamp”. This will show you around the section.io management dashboard and help you get an understanding of it. Afterwards, press the blue button labeled “Create application” to get started deploying your app on section.io.

Configuring your domain for section.io

configuring the hostname Enter your domain name, and section.io will automatically scan for existing DNS records and use them to set your origin address. However, if his fails you will need to manually insert an origin. An IP address or CNAME that you would normally point a domain towards works.

choosing a reverse proxy You will also be prompted to choose a reverse proxy. A reverse proxy is a server that takes requests from clients, and requests the data from your server. However, a Varnish reverse proxy can be used for caching content so your server will not be queried every time. For most instances, we recommend using Varnish v4.

Changing DNS

For the final stage of deployment onto section.io infrastructure, you need to point your domain at your section.io app. This can be done one of two ways. Press the “Change DNS” button to get started.

We recommend changing your nameservers to utilize our hosted DNS. This allows you to use a bare domain (example.com rather than www.example.com) and also ensures stability and speed in site’s DNS. The methods for changing your DNS servers vary between domain registrars, so please refer to the documentation or customer support for your registrar if you encounter any difficulties.

hosted dns

The second method is to use a CNAME. Create a CNAME record on your domain and point it at the domain found in the DNS menu.


All done!

Congratulations! You are now running on the section.io CDN. If you have any issues, feel free to contact our support team for help.

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