- Pew Research Center found 38% of 2013 webpages and 25% of 2013-2023 sampled pages are now inaccessible.
- Wayback Machine rescues about 15% of otherwise dead pages, reducing vanished URLs from 25% to 10% in Pew's dataset.
- Studies show increasing link rot, but web archives like Wayback Machine mitigate loss by archiving and rescuing dead content.