Dug was an on-line project, which had sat down to the goal of scanning and in the long run a search machine with up to date content to provide of being able Internet daily. The project accompanied of a Maskottchen, a tapeworm, which stands as symbol for the task of the program: creeping by Internet. The project was stopped 2005.

Index size

The number of the sides in the Internet can be only estimated. And it will for past search machine offerers ever more with difficulty to be able to present results which are to be rated in the sense of the user also actually as "„current "“. The problem here is purely technical nature. Because one wanted to create a up to date overall index, then it requires substantial investments.

Search machines offer either own volume of data, which indicates them by so-called Crawlern, or they buy these information with so-called data suppliers as inktomi, who are dependent however also Crawler. During some search machines with own data them admitted URLs into partial to irregular distances visit and possible changes register, partition others again after the URLs in their volume of data "„importantly "“and "„unimportantly "“, whereby above all new sides are classified, thus sides with regular and frequent actualizations of contents as "„importantly "“in the sense of the Crawler. According to these criteria this Urls is examined either irregularly or in addition, daily then for changes. However none of the search machines existing so far can guarantee a daily examination of the listed web pages.

A goal

Dug should an index provide, which is daily updated. Here, so the thought of the project, the Crawler is not from the enterprise central from those to examining Internet sides to visit, but rather this computing time is to be divided on many single computers, a so-called distribution counting is to success to lead here. The project is comparable with SETI@home or Folding RK home.

Proceeding

The user installs a free program, which dug of is held ready, locally on his own computer and keeps called from the central computer of the offerer a so-called working unit, also Workunit (WU). In case of of acts it dug over per unit around one for instance 30Kb large list with 500 URLs, which the domestic computer visits now and examined for changes. The user sees letting itself be listed thereby however not actual contents, but can at best in a window installed of the program the sides visited in each case. It has besides the possibility, which to the project to assigned computer time, which range and also the time, to which the Tool is to work, of determining even. If the program is not active, it can serve also as Bildschirmschoner.

Problems

The project is not whole without doubts. Because in the long run it leads to the fact that the own computer actually strange web page visits and the IP address users leaves there. Whether this is always desirable, straight if it around legally precarious sides or however around Pornosites goes, should be considered before. Also the program uses not alone the computing time, but also the range of the Internet service tenderers and develops thus Traffic, for which the user would have to pay perhaps, depending upon his selected on-line tariff.

Data user

Dug in January 2003 by the Web catalog operator Looksmart was bought up. User of the data is the search machine Wisenut belonging to Looksmart. Also German-language Internet sides of dug scanned, Wisenut and also the results of a retrieval query are conceived however less for the German-language market.

Related links

• Dig Website

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