| Referrer | Total referrals | 2026-09 | 2026-08 | 2026-07 | 2026-06 |
|---|---|---|---|---|---|
| 1,719,027 | 319,193 | 552,398 | 444,010 | 403,426 | |
| eScholarship | 698,051 | 237,399 | 206,368 | 100,524 | 153,760 |
| cdlib.org | 78,500 | 638 | 50,050 | 6,587 | 21,225 |
| Bing | 70,682 | 20,116 | 30,537 | 5,526 | 14,503 |
| Yahoo | 42,092 | 16,120 | 16,119 | 2,774 | 7,079 |
| yandex.org | 39,884 | 15,601 | 15,567 | 2,459 | 6,257 |
| baidu.org | 39,632 | 15,480 | 15,429 | 2,485 | 6,238 |
| osti.gov | 23,074 | 707 | 2,023 | 12,036 | 8,308 |
| ucop.edu | 20,149 | 272 | 2,917 | 5,665 | 11,295 |
| chatgpTwitterm | 15,555 | 5,392 | 4,572 | 3,091 | 2,500 |
| duckduckgo.com | 14,192 | 1,252 | 10,962 | 982 | 996 |
| ucla.edu | 12,911 | 4,499 | 3,159 | 1,982 | 3,271 |
| doi.org | 8,738 | 3,163 | 2,437 | 1,261 | 1,877 |
| nih.gov | 8,500 | 1,498 | 2,840 | 2,813 | 1,349 |
| berkeley.edu | 5,065 | 2,178 | 2,887 | ||
| Wikipedia | 4,986 | 1,572 | 1,421 | 981 | 1,012 |
| cnki.net | 4,021 | 955 | 2,405 | 661 | |
| baidu.com | 3,961 | 3,905 | 56 | ||
| 3,078 | 880 | 988 | 569 | 641 | |
| consensus.app | 2,253 | 683 | 539 | 484 | 547 |
| kiphub.com | 1,115 | 1,115 | |||
| 677 | 289 | 388 | |||
| claude.ai | 572 | 143 | 205 | 224 | |
| europepmc.org | 503 | 211 | 292 | ||
| edu.pl | 417 | 417 | |||
| other | 202,722 | 32,052 | 76,034 | 74,728 | 19,908 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.