How can I identify whether a browser/reader is being used by someone who is visually impaired?

Posted by Mark Brittingham on Stack Overflow See other posts from Stack Overflow or by Mark Brittingham
Published on 2010-05-20T17:20:10Z Indexed on 2010/05/27 22:51 UTC
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ASP.NET

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browser

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I have to provide a 508-compliant version of a page for the visually impaired and it isn't practical to just modify the page. Thus, I have created a new "reader-compatible" version of the page for the handicapped. The question is how I can tell if someone is using a reader rather than a standard browser? Is there a "header" or "useragent" value typically used by these non-standard browsers that I can look for?

Thanks in advance!

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