cPanel Mission Critical, Maintenance and Outage Fallback

On cPanel Hosting for Mission Critical Sites if the service is unavailable for any reason, be it scheduled maintenance or an unplanned outage, site visitors will be presented with an Illinois-branded maintenance message or alternate page. The alternate page will be static HTML (and javascript if desired) and will be hosted in AmazonS3. S3 has a 99.9% uptime target, as specified in the Amazon S3 Service Level Agreement.

Fallback Options

Default Fallback Page

The Web Hosting team will manage a default maintenance page that can be used by any sites hosted on cPanel Plus. This page will be a single basic web page with the campus branding Header and Footer, and a message informing visitors that the website is currently unavailable. You can view the default maintenance page here: https://cpp.web.illinois.edu/maintenance.html

Customer-specific Fallback Page

Customers have an option to provide their own maintenance page. This is a single page with university branding header and footer, and the messaging of your choice. It can include links to external resources that are not hosted on cPanel Hosting for Mission Critical Sites, such as the Knowledgebase, help systems, the Illinois home page, or anything else visitors to the site might find useful while the website is offline.

Creating a Fallback Page

All sites will have the default fallback page installed, and may also choose to have their own specific fallback pages. If specific fallback pages are installed, the default fallback would only be shown if there is an issue displaying the specific fallback pages. Fallback pages can be shared among multiple sites, such as sites that are all from the same department or are otherwise related to each other.

The Web Enablement Team will work with each customer to select a fallback option that works best for your use case. Each unit may either provide a static page they would like to use or may request co-development of appropriate pages. Co-development will be provided as part of our normal consulting process. As each unit’s needs and resources are different, the exact process for managing that collaboration will be determined by the Unit representative and the developer assigned.



Keywords:
mission-critical, fallback, failover, maintenance, mission critical 
Doc ID:
165110
Owned by:
Julieanne C. in University of Illinois Technology Services
Created:
2026-10-26
Updated:
2026-10-27
Sites:
University of Illinois Technology Services