Preservation Coverage Visualizer


Can also search for releases (eg, individual papers) or containers (eg, journals).
15,135,018
Known Releases
10,962,538 72.44% preserved and publicly accessible (bright)
2,354,073 15.56% preserved but not publicly accessible (dark)
1,818,407 12.02% no known independent preservation


Perpetual Access Coverage by Year



Perpetual Access Coverage by Release Type

Release Type Total Count Coverage
article-journal 13,060,984
article 2,058,509
paper-conference 15,525