1. A non-transitory storage medium storing instructions readable and executable by an electronic data processing device to perform a crawling method including the operations of: (i) identifying hyperlinks in a current document wherein each hyperlink links to a linked document and includes anchor text and a linked document identifier; (ii) scoring each hyperlink by parsing the hyperlink to identify features comprising character strings, computing values for one or more meta-features for each feature wherein the meta-features are indicative of the linked document being in a target language, and aggregating the meta-feature values of the features of the hyperlink to generate a score for the hyperlink; and (iii) downloading documents linked by hyperlinks of the current document whose scores satisfy a screening criterion and not downloading documents linked by hyperlinks of the current document whose scores do not satisfy the screening criterion.