A system determines browser package and version compatibility of a web document by searching a document for computer language keywords. The system comprises keyword memory storing a first set of keywords corresponding to a computer language not executable by a browser package, a search engine coupled to the keyword memory for searching a web document for keywords, and an inspection engine coupled to the search engine for controlling the search engine to search the web document for the first set of keywords. The keywords used for determining browser package compatibility include keywords not executable by the browser package and executable by other browser packages. The keywords used for determining browser version compatibility include keywords specific to a version. Accordingly, the inspection engine may first test for compatibility with the latest version and may work its way downward. Based on the results, the inspection engine can determine with which browser packages and versions a web document is compatible.

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