Figures & data
Figure 1. Screenshots from the Guardian story, depicting how the content gets lost when the third-party services are not maintained: www.theguardian.com/news/datablog/2010/oct/23/wikileaks-iraq-data-journalism. Screenshot taken on 5th August 2020.
![Figure 1. Screenshots from the Guardian story, depicting how the content gets lost when the third-party services are not maintained: www.theguardian.com/news/datablog/2010/oct/23/wikileaks-iraq-data-journalism. Screenshot taken on 5th August 2020.](/cms/asset/65eff7bd-9c0c-43c3-91d7-aea57609c0c5/rjop_a_1903972_f0001_oc.jpg)
Figure 2. Screenshot from a Guardian story, depicting the disappearance of the full story due to the deprecation of Flash: https://www.theguardian.com/world/interactive/2008/jan/23/earthquakes and ig-legacy.ft.com/content/4ce7a094-1c9e-11df-8456-00144feab49a#axzz6murklxLF. Screenshots taken on 21st February 2021.
![Figure 2. Screenshot from a Guardian story, depicting the disappearance of the full story due to the deprecation of Flash: https://www.theguardian.com/world/interactive/2008/jan/23/earthquakes and ig-legacy.ft.com/content/4ce7a094-1c9e-11df-8456-00144feab49a#axzz6murklxLF. Screenshots taken on 21st February 2021.](/cms/asset/8a49c5db-4502-4647-a89d-498a09583b6e/rjop_a_1903972_f0002_oc.jpg)
Figure 3. Literature review procedure, adapted from Kitchenham and Charters (Citation2007) and (Okoli Citation2015).
![Figure 3. Literature review procedure, adapted from Kitchenham and Charters (Citation2007) and (Okoli Citation2015).](/cms/asset/bd260e70-a364-4dfe-893f-235a6138b925/rjop_a_1903972_f0003_oc.jpg)
Table 1. Significant Properties for web pages: extract from van Veenendaal, Lucker, and Sijtsma (Citation2018).
Figure 7. Screenshots from Washington Post and New York Times, depicting the disappearance of the stories due to the deprecation of Flash, as well as the accessible screenshots through their archives: www.washingtonpost.com/wp-srv/politics/pioneers/pioneers_spheres.html and archive.nytimes.com/www.nytimes.com/interactive/2010/02/20/sports/olympics/downhill-overview.html. Screenshots taken on 21st February 2021.
![Figure 7. Screenshots from Washington Post and New York Times, depicting the disappearance of the stories due to the deprecation of Flash, as well as the accessible screenshots through their archives: www.washingtonpost.com/wp-srv/politics/pioneers/pioneers_spheres.html and archive.nytimes.com/www.nytimes.com/interactive/2010/02/20/sports/olympics/downhill-overview.html. Screenshots taken on 21st February 2021.](/cms/asset/be179c95-6225-4821-9294-72824f193f5b/rjop_a_1903972_f0007_oc.jpg)