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Crossref Stats Page: Updated on Dec 9, 2019

MetaData Deposit
Total Records in Database110,373,974
Total Prefixes15,269
Number of Journals73,725
Number of Books1,394,274
Number of Conference Proceedings69,415
Number of Journal DOIs80,470,554
Number of Book DOIs16,398,717
Number of Conference DOIs6,123,492
Number of Components3,927,586
Number of Standards Titles396,040
Number of Standards DOIs307,182
Number of Databases28,570
Number of Database DOIs1,879,273
Number of Articles with References Deposited45,164,710
Number of Cited-By Links979,353,743
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 33,729
Number of Book Title Level DOIs 1,414,060
Number of ConfProc Title Level DOIs 21,609
Number of Dissertation Title Level DOIs 305,625
Number of Report Title Level DOIs 620,216
Number of Standards Title Level DOIs 306,617
Number of Database Title Level DOIs 26,070
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
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
Sep974,995676,754298,2415,638,285
Oct1,099,091759,494339,5975,567,582
Nov1,054,714806,270248,4445,685,991
Dec225,674188,25637,418981,951


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%
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%
Sep136,632,17157,991,33642%50%46%74%157,467,989150,756,19896%
Oct149,184,40174,728,38450%50%52%74%183,667,799176,054,69696%
Nov135,248,39567,419,62150%50%47%74%123,589,016116,195,04794%
Dec41,633,29419,282,92746%47%47%65%37,176,99235,354,26595%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Nov24,82785,735
Dec22,60279,642
Jan28,00394,440
Feb25,72690,182
Mar26,20695,016
Apr22,05292,117
May37,084117,372
Jun25,14998,685
Jul29,511114,941
Aug35,561117,758
Sep25,352103,458
Oct45,048170,643
Nov37,666132,502
Dec9,86633,587

ORCID Totals

StatisticTotal
Total orcid/article pairs5,579,192
Total unique orcids2,044,097
Total works pushed2,789,226
Authors granting900,867
Authors denying531,940
Authors not responding624,007