Hosting & Performance

  • Highest possible uptime of 99.9%
    • 99.99% uptime available with Stacks Premium
  • Less than five (5) second average page response times
  • Less than eight (8) hours planned maintenance/year
  • Structured for SEO best practices

* See the Stacks Security White Paper for more details


Back Ups

Backups are taken care of by the Stacks team and our response times are as follows:

  • The Recovery Time Objective (RTO) is six (6) hours
  • The Recovery Point Objective (RPO) is two (2) hours

These objectives are obtained in part because customers are backed up on the following schedule:

  • Hourly and retained for seven (7) days
  • Daily and retained for two (2) years

Backups are encrypted and stored online in Amazon S3.



5GB is allocated to each Stacks powered website. Additional space can be purchased.

Files of up to 256 MB can be uploaded to a Stacks website. These files are stored and managed within the Stacks Media Browser with file sharing between domains permitted.


Consortia Value

  • Multi-Domain
  • Shared instance for improved pricing
  • Unique domains
  • Unique look and feel
  • Publish content to one, some, or all sites
  • Ability to share files



WCAG 2.0 Level A compliant. Offers guidance and a variety of tools that empower all users creating content in the platform to align that content quickly and easily with the accepted standards by leveraging the following:

  • Introductory text and shortcuts for screen reader patrons
  • Elimination of most tables to improve searching with screen readers or keyboard controls
  • Help text and compliance reminders for content creators
  • Descriptive page titles, section header tags and selected link labels
  • Streamlined code for simpler page structures
  • Detailed alternative text image descriptions
  • Decreased page size and list pagination for shorter download times for all patrons
  • Implementation of WAI ARIA (Accessible Rich Internet Applications) coding standards from W3C consortia that work in conjunction with HTML5’s built-in accessibility features



Supports all modern browsers and devices including:

  • Google Chrome
  • Firefox
  • IE11+
  • Android 4.1+
  • iOS9+


Customizable & Responsive Themes

  • Fully responsive for phones, tablets, laptops, desktops etc.
  • New themes added every quarter
  • Custom color palettes, backgrounds, etc.
  • Change the look and feel in seconds



  • Granular user roles with library-specific hierarchy
    • Administrator, Moderator, Editor, Contributor and User
  • Supports content moderation
    • Set workflow states for content types that trigger email notifications for review in order to publish content
  • Schedule publish and expiry dates for content

The Integrations - Quick and Easy to Configure

Search Integration

*Additional details can be found under ‘Features’ on the Stacks website.