UK Web Archive
The UK Web Archive is a consortium of the six UK legal deposit libraries which aims to collect all UK websites at least once each year., its website is unavailable because of a cyberattack on the British Library in October 2023.
History
In 2005, the British Library, The National Archives, Wellcome Trust, National Library of Scotland, National Library of Wales and JISC formed the UK Web Archiving Consortium, a project to archive websites.UKWAC archived selected websites by license or permission, using PANDAS software developed by the National Library of Australia. During the project its members collected sites relevant to their interest; the Wellcome Library collected medical sites, the national libraries sites that reflect life in contemporary Wales or Scotland. The British Library worked with a broad policy of collecting sites of cultural, historical and political importance to the UK.
The Consortium wound up in 2010. The Archiving and Preservation Working Group took over UKWAC's co-ordinating role web archiving in the UK. The Digital Preservation Coalition hosts the working group.
Web archiving
The archive undertakes an annual crawl of.uk and other UK geographic Top Level Domains such as.scot,.cymru or.london.File:Crawl graph.png|left|thumb|alt=A graph showing a small part of a UK Web Archive website crawl. Every circle is a different website, and every line represents a link that was followed between websites. The size of the circle represents how many pages were visited from that site, and the width of the line represents the number of links followed.|A graph showing a small part of a crawl. Every circle is a different website, and every line represents a link that was followed between websites. The size of the circle represents how many pages were visited from that site, and the width of the line represents the number of links followed. The crawl is archived in a shared infrastructure called the Digital Library System. Members of the public can nominate sites for preservation there through the . The whole web archive is available to registered readers on library premises; and where permission has been given, or license conditions can be met, copies are also accessible through the website.The archive gathers sites in response to events, building collections - these have preserved writing and imagery recording natural , since 2005 and the UK's for research, among more than a hundred more.