How should I configure my firewall and mail servers so my company can use Pluralsight Skills?

Tags: Skills

You'll find steps below on configuring your company's firewall and mail servers, to ensure your users can access Pluralsight Skills.


Please make certain you configure the following hosts as trusted senders on your email server and firewall so that mail from Pluralsight isn't rejected.

  • Mandrill, IP address
  • Sparkpost, IP addresses and,

Please make sure and are not routed to spam. If you don't do this, your users may not receive their business subscription invitations and password reset emails.

If your organization elects into customer marketing communications, typically around adoption and engagement, please allowlist and configure this host as a trusted sender on your email server and firewall:

  • Marketo,, IP address

This is optional and only necessary for organizations that are working with Pluralsight and using customer marketing communications.

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Be sure to allowlist the following hosts in your firewall for outbound TCP connections over ports 80 and 443 (for HTTP and HTTPS, respectively):

  • *
  • *

For Pluralsight Skills interactive courses, please also allow WSS traffic over port 443.

Pluralsight Skills uses Cloudflare, Cachefly, Edgecast, and AWS. 

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Video content

If you’re experiencing issues with video content, check out our video checkup tool, as well as this article on video troubleshooting steps

To verify that a local firewall is not blocking access to our video servers, please try downloading this 40MB video file directly from our content delivery network here. If your firewall is rejecting our videos, you'll likely see 403 Forbidden. This may include a message explaining why your firewall blocked your request.

If you still are having issues with our content, especially playing videos, please reach out to your IT Ops team to make sure the subdomains below are allowed through your network firewall and any security appliance.

SubdomainsContent delivery network






Video course exercise files

To allow your users to download and use exercise files associated with video courses, please add the following domain:


Discussion boards

To view and use discussion boards on video courses and projects, please allowlist

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ProjectsLabs and SandboxesInteractive Courses

Pluralsight Skills projects require local access to your command line and an IDE, and network access to the following:

In addition, projects requires access to, and the ability to clone a repository and install required software locally. 

Required for general labs and sandboxes:
  •, *
  • *
  • *
  • *

For AWS labs, please allow this list of IP addresses.

For Microsoft Azure labs, please also allow this list of URLs and

For in-course Qwiklabs, and Google Cloud self-paced labs powered by Qwiklabs, please also allow * and allow access to this list of ports.

For Pluralsight Skills interactive courses, please allow WSS traffic over port 443.

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For Pluralsight Flow access: if you’re using Flow with an internal server or behind a firewall, please allow Flow’s static IP addresses.

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If you need help, please email for 24/7 assistance.