Web search engine tool. GPL

DataparkSearch 4.48 features support for http, https, ftp, nntp, and news URLs, htdb virtual URL support for indexing SQL databases, text/html, text/xml, text/plain, audio/mpeg (MP3), and image/gif mime types built-in support, external parsers support for other document types, the ability to index multilangual sites using content negotiation, searching of all of the word forms using ispell affixes and dictionaries, stopwords and synonyms lists, boolean query language support, results sorting by relevancy, popularity rank, last modified time, and importance (a multiplication of the relevancy and popularity ranks), support for various character sets, and phrases segmenting for the Chinese, Japanese, Korean, and Thai languages. It has accent-insensitive search, mod_dpsearch for Apache, and support for internationalized domain names.