In addition to designing courses to be compatible with assistive technologies, it’s also important to eliminate unnecessary HTML code. This type of code may not be visible to a user but it could affect the way the page behaves or interfere with the proper operation of assistive technologies. Use the links below for web sites that perform tests on web pages to check for extraneous code and/or accessibility issues.

W3C Markup Validation Service

WebAIM’s WAVE Tool

HiSoftware Cynthia Says Portal

Free 508 Compliance Checker