How to Set Up SSO on Squarespace Enterprise Sites

Learn to secure Squarespace sites with Single Sign-On in clear, simple steps.

How to Set Up SSO on Squarespace Enterprise Sites
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Jun 25, 2025 09:35 PM
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SSO is available only for Squarespace Enterprise plans; use authentication apps like Okta or Google for setup. Customize the login page to match your brand and enable SSO for specific pages or the entire site. Always test in a private browser to ensure proper functionality.
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How to Set Up SSO on Squarespace Enterprise Sites

Tags: Squarespace, Single Sign-On, SSO, Enterprise Security, Website Security, Authentication Applications

TL;DR: Key Points

  • SSO is only available for Squarespace Enterprise plans
  • Use authentication apps like Okta, Google, or Microsoft Entra ID for setup
  • Customise the SSO login page to match your brand
  • Enable SSO for specific pages or your entire site
  • Work with your IT team for proper setup and configuration
  • Each authentication provider has specific requirements

What Is SSO?

Single Sign-On (SSO) is a security system that lets users log in once to access multiple applications or sites. On Squarespace, SSO means your team or clients can access protected pages without juggling multiple passwords.

Setting Up SSO for Your Squarespace Site

Choose Your Authentication Provider

First, pick and configure an authentication application. Your options include Okta, Microsoft Entra ID, ClassLink, or Google. Each provider needs specific details:
  • Okta: You'll need the client ID and client secret
  • Google: Requires the X.509 certificate
  • Microsoft Entra ID: Setup uses your tenant ID
  • ClassLink: Only works if you're already using it with your Squarespace account

Customise the SSO Login Page

Your login page should look like part of your brand. Here's how to customise it:
  1. Go to your site settings and open the Design panel
  1. Click "SSO Login Screen" to edit background images, fonts, and colours
  1. Use the Branding & Text panel to add your logo and adjust text styles
This keeps your brand consistent, even on login screens.

Setting Up Site-Level SSO

This protects your entire site:
  1. Go to Site Availability settings
  1. Choose "SSO protected" then "Select SSO" to pick your method
  1. Save changes to protect all pages

Setting Up Page-Level SSO

For protecting specific pages (useful when different people need access to different areas):
  1. In the Pages panel, hover over a page and click its settings
  1. Toggle "Require SSO to access page" and select your SSO method
  1. Save your settings
Testing tip: Always test your SSO setup in a private browser window. This simulates how real users will experience it and avoids any cached login states that might hide problems.

Common Questions

Can I use SSO on any Squarespace plan? No, SSO is only available for Enterprise customers.
How do I customise the login screen? Go to Design panel > SSO Login Screen, then edit the content, background image, and styling to match your brand.
What if something goes wrong during testing? Contact your Squarespace account manager straight away for help.

Quick Definitions

  • Single Sign-On (SSO): Login once, access multiple applications
  • Authentication Applications: Tools that verify user credentials securely (like Okta or Google)
  • Enterprise Plan: Squarespace's top-tier plan with advanced features like SSO
  • Site-Level SSO: Protects your entire website
  • Page-Level SSO: Protects specific pages only

Final Thoughts

Setting up SSO on Squarespace improves security and makes access management much easier, especially for larger organisations. Work closely with your IT team to get everything configured properly. Don't skip customising the login page either - it keeps your brand looking professional throughout the entire user experience.

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