High Quality Content by WIKIPEDIA articles! Walhello is a spider based search engine developed in the Netherlands for the whole Internet. The Walhello spider is called "appie". This spider automatically downloads and indexes web pages and follows links found on the downloaded web pages. The Walhello search engine debuted in the summer of 2000 with a small index. Since then the index has grown to 2.3 billion indexed web pages. This is still significantly less than Google or Yahoo. Like most spider based search engines the ranking of search results is based on mathematical algorithms. Walhello is also doing research on the use of knowledge technology to improve the relevancy of search results. As an advanced search option proximity search functionality is provided, which allows users to define the proximity in which all search items must be found on a web site. Another functionality is the option to search for web pages written in a certain language.

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