There are a number of things you can try if you are having trouble loading, viewing, or submitting exercises. Please try the following options:
- Clear your internet history and reload the web page. This guide will walk you through it.
- Make sure you are using an updated version of one of these browsers: Chrome, Firefox, Safari, or Edge. We no longer support Internet Explorer.
- Check your Internet connection. We recommend that you have a reasonably fast connection to the internet. Any broadband connection, like DSL or cable, should be sufficient.
- If you are using a proxy service or an ad blocker, such as Ghostery, Ad Block, or Ad Block, please whitelist the following sites:
- https://www.codecademy.com
- external-production.codecademy.com
- cdn-production.codecademy.com
- *.codecademy.com
- workshop.cc-propeller.com
- *.cc-propeller.cloud
- herokuapp.com
- fonts.gstatic.com
- cdn.mxpnl.com
- js-agent.newrelic.com
- codecademy.cloud
Further notes*
If you are working from a school or work computer, a firewall could be preventing you from accessing our learning environment. In this case, do check in with your IT department.