Accessibility Checker
This is internal feature to check the accessibility issues for pages
SharePoint 2016
Feature Details
ID fcd50091-d40f-422f-b6bd-e763be4da86f
Scope Farm
Hidden True
ActivateOnDefault True
AlwaysForceInstall False
RootDirectory C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\Template\Features\Accessibility
Content of the Feature
Control: AdditionalPageHead
Id AdditionalPageHead
Sequence
ControlClass Microsoft.SharePoint.WebControls.AccessibilityControl, Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c