Back to the main Crossref website
status

Crossref Stats Page: Updated on Sep 21, 2019

MetaData Deposit
Total Records in Database108,251,069
Total Prefixes14,694
Number of Journals71,295
Number of Books1,368,088
Number of Conference Proceedings67,765
Number of Journal DOIs79,054,845
Number of Book DOIs15,988,052
Number of Conference DOIs6,002,447
Number of Components3,917,690
Number of Standards Titles392,874
Number of Standards DOIs308,821
Number of Databases27,118
Number of Database DOIs1,855,604
Number of Articles with References Deposited44,306,638
Number of Cited-By Links953,961,402
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 32,405
Number of Book Title Level DOIs 1,388,776
Number of ConfProc Title Level DOIs 20,871
Number of Dissertation Title Level DOIs 286,200
Number of Report Title Level DOIs 615,775
Number of Standards Title Level DOIs 308,256
Number of Database Title Level DOIs 23,916
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
(2016)6,125,8073,971,1362,154,67126,670,973
(2017)7,384,8185,109,0752,275,74331,278,043
(2018)8,265,9186,240,5712,025,34733,609,916
Aug874,231640,770233,4613,333,069
Sep809,045686,085122,9602,553,305
Oct849,490737,221112,2693,279,579
Nov827,655705,722121,9333,434,929
Dec780,544671,698108,8462,809,222
Jan837,106643,227193,8793,709,404
Feb739,634600,221139,4132,930,021
Mar883,267709,834173,4333,394,481
Apr911,489699,395212,0943,526,819
May1,022,569765,045257,5244,071,354
Jun858,438701,512156,9264,128,236
Jul907,844740,353167,4913,389,352
Aug923,789722,202201,5874,967,915
Sep577,991461,882116,1093,823,831


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(2016)2,132,786,834741,439,41035%59%46%46%1,082,427,3471,001,605,89193%
(2017)2,104,222,315726,991,60435%51%40%40%1,522,141,0931,397,871,16892%
(2018)2194087319754,970,92334%51%43%43%1,823,393,3791,738,885,21895%
Aug183,486,67964,678,39135%49%45%76%149,760,753144,149,65896%
Sep175,579,74255,239,39331%52%38%73%126,702,532120,759,40895%
Oct186,639,13165,918,58035%56%42%73%156,798,578149,988,86196%
Nov182,717,30663,494,72735%55%44%74%195,014,038182,442,19394%
Dec127,351,47356,427,04944%55%48%72%177,168,246170,607,39296%
Jan126,964,51763,996,54150%58%42%60%127,096,055119,483,24194%
Feb141,564,96577,731,76055%59%50%68%131,022,077123,932,71995%
Mar128,308,24168,458,71453%59%53%67%155,800,023147,005,05794%
Apr149,186,03668,873,98446%56%58%68%149,987,175141,707,40594%
May172,624,83868,086,94639%54%61%66%150,178,136141,697,07594%
Jun129,897,36152,710,69141%55%51%68%263,675,557214,375,45181%
Jul124,518,87358,381,31747%52%52%72%152,592,199145,168,55395%
Aug141,232,76259,310,35942%49%53%69%148,616,500141,484,67595%
Sep100,395,71439,595,07939%49%45%72%97,972,60593,545,71995%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Aug20,99377,959
Sep21,18671,816
Oct24,96286,024
Nov24,90285,735
Dec22,67679,642
Jan28,11194,440
Feb25,80390,182
Mar26,32695,016
Apr22,17992,117
May37,447117,372
Jun25,47298,685
Jul29,969114,941
Aug36,298117,758
Sep18,89172,697

ORCID Totals

StatisticTotal
Total orcid/article pairs4,989,775
Total unique orcids1,883,387
Total works pushed2,421,733
Authors granting804,458
Authors denying511,708
Authors not responding579,167