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Crossref Stats Page: Updated on Jan 20, 2020

MetaData Deposit
Total Records in Database111,375,919
Total Prefixes15,576
Number of Journals74,935
Number of Books1,403,601
Number of Conference Proceedings70,070
Number of Journal DOIs81,178,285
Number of Book DOIs16,535,632
Number of Conference DOIs6,177,324
Number of Components3,954,704
Number of Standards Titles398,356
Number of Standards DOIs309,468
Number of Databases28,849
Number of Database DOIs1,899,560
Number of Articles with References Deposited45,557,273
Number of Cited-By Links991,443,362
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 34,390
Number of Book Title Level DOIs 1,423,259
Number of ConfProc Title Level DOIs 25,230
Number of Dissertation Title Level DOIs 308,754
Number of Report Title Level DOIs 623,007
Number of Standards Title Level DOIs 308,903
Number of Database Title Level DOIs 26,343
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
Jan574,709391,907182,8022,133,514


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%
Jan65,944,31936,618,26256%49%52%71%67,493,17363,002,51893%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Dec22,57279,642
Jan27,97994,440
Feb25,69590,182
Mar26,18395,016
Apr22,03492,117
May37,031117,372
Jun25,08698,685
Jul29,427114,941
Aug35,414117,758
Sep25,195103,458
Oct44,726170,643
Nov37,333132,502
Dec29,655124,782
Jan10,65464,284

ORCID Totals

StatisticTotal
Total orcid/article pairs5,887,068
Total unique orcids2,136,299
Total works pushed2,944,705
Authors granting929,965
Authors denying542,244
Authors not responding677,152