Non-indexable data

Despite its immense index, there is also a considerable amount of data available in online databases which are accessible by means of queries but not by links. This so-called invisible or deep Web is minimally covered by Google and other search engines.^[13] The deep Web contains library catalogs, official legislative documents of governments, phone books, and other content which is dynamically prepared to respond to a query.

Privacy in some countries forbids the showing of some links. For instance in Switzerland every private person can force Google Inc. to delete a link, which contains their name.^{[citation needed]}