by Webnme2 on Mar 20th 2010
There are many html validator services available – many of which are summarized at http://www.htmlhelp.com/links/validators.htm. These are general HTML validators. They can be used to make sure that the html is compliant with the W3C standards used by most vendors that are developing text reader programs.
One of the first steps in designing for accessibility is to assure that your html can be interpreted. Some of the validators listed will also discover missing alt=”” strings and other things that need
to be fixed for accessibility.
Of course you can use the W3C validator at http://validator.w3.org/.
Validators come in many flavors ranging from the commercial http://www.htmlvalidator.com/htmldownload.html to the free http://watson.addy.com/ (Dr. Watson online validator – which shows much promise).
Some are specialized like Bobby for accessibility.
Tidy, http://www.w3.org/People/Raggett/tidy/, is billed by the Washington State Web Accessibility page (http://www.aasa.dshs.wa.gov/access/tools.htm) as a good general tool with some accessibility functions.
Another such tool for accessibility is found at http://aprompt.snow.utoronto.ca/ and called the A-Prompt Project. There most recent release is May 7, 2000 and can be downloaded from http://aprompt.snow.utoronto.ca/develop/demo.htm.
If you are running a large website and have a healthy budget, you may also want to investigate: