Michigan State University officially supports the latest version of browsers used by more than 1% of visitors to msu.edu or msutoday.msu.edu.

Officially supported browsers, as of April 2024:

*Data based on Aug. 1, 2023 – April 20, 2024, traffic reports

• Test the website on various platforms, browsers and devices.
• Be sure to test both PC and Mac. 
• Test in all officially supported browsers. 
• For responsive designs, view pages at all viewport sizes to confirm content displays as desired.
• Consider the key audience and their device and browser preferences as a way of prioritizing testing. Use analytics to determine the devices, screen sizes and browsers most used. 
• Use an emulator browser extension or online testing service if the unit does not have access to multiple devices for testing.

Check for HTML and CSS errors that break functionality and layout. 
Use free validation tools: 

• W3C Markup Validation Service
• CSS Validation Service 
• For automated validation, consider Total Validator

Make it a regular practice to audit the website for broken links, accessibility barriers and browser compatibility issues. Check for issues every time a page is added or deleted. Additionally, check for issues every three-to-four months, or more often if content is updated consistently.