Date: Jul. 20, 2001
Link: http://www.oasis-open.org/cover/check-xml.html
Source Author or Organization: Robin Cover, OASIS

The "Check or Validate XML" section of the XML Cover Pages is a listing of several online XML checkers that will test a submitted online page in one of three ways: a well-formedness check, a syntax check, or a validation check. Links to additional testing and validation resources are also included.