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Crossref Stats Page: Updated on Jan 23, 2020

MetaData Deposit
Total Records in Database111,468,418
Total Prefixes15,597
Number of Journals75,053
Number of Books1,405,493
Number of Conference Proceedings70,135
Number of Journal DOIs81,238,059
Number of Book DOIs16,557,252
Number of Conference DOIs6,181,934
Number of Components3,957,851
Number of Standards Titles398,460
Number of Standards DOIs309,571
Number of Databases28,962
Number of Database DOIs1,900,306
Number of Articles with References Deposited45,591,027
Number of Cited-By Links992,528,722
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 34,451
Number of Book Title Level DOIs 1,425,181
Number of ConfProc Title Level DOIs 26,191
Number of Dissertation Title Level DOIs 308,948
Number of Report Title Level DOIs 623,339
Number of Standards Title Level DOIs 309,006
Number of Database Title Level DOIs 26,476
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
Jan671,282467,112204,1702,465,094


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%
Jan77,891,27144,516,76657%49%54%71%79,892,31174,497,31993%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Dec22,57179,642
Jan27,97994,440
Feb25,69490,182
Mar26,18395,016
Apr22,03392,117
May37,027117,372
Jun25,08198,685
Jul29,420114,941
Aug35,406117,758
Sep25,187103,458
Oct44,711170,643
Nov37,317132,502
Dec29,638124,782
Jan11,19877,969

ORCID Totals

StatisticTotal
Total orcid/article pairs5,920,214
Total unique orcids2,145,632
Total works pushed2,958,391
Authors granting930,422
Authors denying543,215
Authors not responding684,979