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Crossref Stats Page: Updated on May 29, 2023

MetaData Deposit
Total Records in Database146,088,663
Total Prefixes26,265
Number of Journals115,136
Number of Books1,847,874
Number of Conference Proceedings100,602
Number of Journal DOIs102,069,481
Number of Book DOIs23,497,206
Number of Conference DOIs7,870,017
Number of Components6,197,874
Number of Standards Titles461,778
Number of Standards DOIs372,079
Number of Databases63,319
Number of Database DOIs2,732,128
Number of Articles with References Deposited60,594,011
Number of Cited-By Links1,477,577,882
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 52,865
Number of Book Title Level DOIs 1,877,616
Number of ConfProc Title Level DOIs 62,847
Number of Dissertation Title Level DOIs 589,388
Number of Report Title Level DOIs 747,855
Number of Standards Title Level DOIs 371,514
Number of Database Title Level DOIs 36,901
Number of Unique DOIs with FundRef data 2,947,660

Monthly Deposit Data

MonthTotal Records
Added
Total Current
Deposits
Total BackFile
Deposits
Total Records
Updated
(2020)12,462,5449,986,0052,476,53945,287,268
(2021)12,985,66110,349,5432,636,11851,337,993
(2022)12,707,98510,665,7782,042,20739,685,228
Apr930,495801,651128,8443,582,107
May977,632855,939121,6933,230,096
Jun1,081,628910,095171,5333,963,346
Jul994,155875,020119,1352,949,432
Aug982,849857,127125,7222,562,714
Sep1,092,490933,137159,3532,553,023
Oct1,048,965904,297144,6683,266,357
Nov1,123,9831,023,039100,9443,002,641
Dec1,240,284935,991304,2933,495,539
Jan1,239,787885,485354,3024,012,139
Feb1,375,777828,437547,3403,444,197
Mar1,204,7881,031,855172,9334,572,380
Apr1,081,178976,455104,7234,609,743
May1,201,6281,006,936194,6928,198,363


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(2020)1,523,069,914710,874,30447%48%49%49%1,590,084,0451,472,849,57693%
(2021)1,409,971,973737,322,61052%42%52%52%2260129170215223692795%
(2022)1,422,315,910758,731,17253%39%56%56%2676124969255801502396%
Apr97,773,24950,608,12452%41%62%68%245,241,400236,291,04996%
May117,952,24360,234,76551%38%55%68%215,439,558205,650,51595%
Jun111,521,84266,859,31660%33%55%67%201,642,204192,095,92095%
Jul133,565,96667,317,49550%30%48%68%172,292,323164,322,80995%
Aug120,353,70259,223,50849%33%49%69%191,792,692183,463,53896%
Sep128,913,71964,134,40950%37%54%70%211,849,503202,007,41895%
Oct127,610,90768,128,42953%39%55%70%243,957,711232,373,26195%
Nov131,879,25075,717,53457%40%59%67%260,103,583247,377,22795%
Dec128,341,42767,481,23153%39%53%66%231,300,995220,861,13795%
Jan147,394,04077,513,72853%37%49%68%246,545,315235,253,68795%
Feb123,896,57072,572,86759%38%58%71%263,266,491251,860,71996%
Mar131,417,05277,557,87759%39%55%65%318,927,002305,559,33096%
Apr141,332,41274,884,15053%38%60%67%322,830,716309,517,27696%
May156,093,74660,080,82638%35%58%69%328,649,558315,114,13796%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Apr55,261272,069
May55,481293,573
Jun48,340292,205
Jul58,167296,970
Aug54,798304,011
Sep57,967314,346
Oct60,382313,646
Nov71,703365,932
Dec63,902350,354
Jan72,831372,590
Feb66,681376,889
Mar74,599428,444
Apr65,973496,654
May68,523408,850

ORCID Totals

StatisticTotal
Total orcid/article pairs21,909,293
Total unique orcids5,616,518
Total works pushed14,204,607
Authors granting3,254,614
Authors denying4,021
Authors not responding2,376,191