Notes
1 SHINE. https://www.webarchive.org.uk/shine.
2 JISC UK Web Domain Dataset (1996-2013). http://data.webarchive.org.uk/opendata/ukwa.ds.2/#issues.
3 National web archives, despite not dating back as early as the Internet Archive, could be used as an additional source to compare and validate analysis. These unfortunately are in general not publicly accessible due to legal requirements.