These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.
Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.
It's not all about computer science expertise. From problem-solving skills to beating your mates at risk, Frank Wales shares are 10 indications that a career in programming is for you
Whether you're just starting out and don't know what career to choose, or you're looking to change direction, put your questions to our experts on Thursday 16 January from 1pm to 3pm
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Hannah McNamara, but they're thinking of them
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Michelle Fullerton shares her top tips to make your transition as smooth as possible
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