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Crossref Stats Page: Updated on Jan 18, 2020

MetaData Deposit
Total Records in Database111,362,578
Total Prefixes15,567
Number of Journals74,912
Number of Books1,403,363
Number of Conference Proceedings70,065
Number of Journal DOIs81,168,470
Number of Book DOIs16,532,650
Number of Conference DOIs6,177,249
Number of Components3,954,607
Number of Standards Titles398,356
Number of Standards DOIs309,468
Number of Databases28,848
Number of Database DOIs1,899,515
Number of Articles with References Deposited45,552,661
Number of Cited-By Links991,309,223
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 34,380
Number of Book Title Level DOIs 1,423,023
Number of ConfProc Title Level DOIs 25,229
Number of Dissertation Title Level DOIs 308,727
Number of Report Title Level DOIs 622,997
Number of Standards Title Level DOIs 308,903
Number of Database Title Level DOIs 26,334
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
(2017)7,384,8185,109,0752,275,74331,278,043
(2018)8,265,9186,240,5712,025,34733,609,916
(2019)9,158,2227,018,0372,140,18541,323,449
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
Dec905,525758,991146,5343,524,176
Jan542,941365,875177,0662,000,320


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(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%
(2019)1,656,796,256783,711,58547%53%51%51%1,848,492,2611,716,370,97493%
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%
Dec121,433,69666,021,93254%45%54%71%104,799,73598,510,85794%
Jan62,698,82434,581,78955%49%52%71%62,003,62657,894,51093%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Dec22,57379,642
Jan27,98094,440
Feb25,69590,182
Mar26,18395,016
Apr22,03492,117
May37,032117,372
Jun25,08798,685
Jul29,427114,941
Aug35,414117,758
Sep25,197103,458
Oct44,730170,643
Nov37,340132,502
Dec29,659124,782
Jan10,48462,792

ORCID Totals

StatisticTotal
Total orcid/article pairs5,883,535
Total unique orcids2,135,165
Total works pushed2,943,213
Authors granting929,817
Authors denying542,106
Authors not responding676,336