| Referrer | Total referrals | 2026-08 | 2026-07 | 2026-06 | 2026-05 |
|---|---|---|---|---|---|
| 1,082,927 | 332,029 | 273,173 | 236,803 | 240,922 | |
| eScholarship | 452,458 | 141,844 | 79,347 | 114,413 | 116,854 |
| cdlib.org | 94,530 | 45,082 | 5,186 | 16,671 | 27,591 |
| Bing | 47,353 | 19,786 | 4,430 | 14,826 | 8,311 |
| osti.gov | 36,096 | 3,900 | 28,124 | 4,072 | |
| Yahoo | 22,488 | 10,956 | 2,072 | 5,699 | 3,761 |
| yandex.org | 21,320 | 10,737 | 1,900 | 4,999 | 3,684 |
| ucop.edu | 20,046 | 3,120 | 6,747 | 10,179 | |
| doi.org | 18,586 | 5,089 | 3,163 | 5,944 | 4,390 |
| baidu.org | 17,955 | 11,011 | 1,929 | 5,015 | |
| nih.gov | 8,612 | 1,578 | 1,427 | 1,853 | 3,754 |
| chatgpTwitterm | 7,857 | 2,452 | 2,148 | 2,007 | 1,250 |
| duckduckgo.com | 2,929 | 2,929 | |||
| baidu.com | 2,901 | 2,901 | |||
| berkeley.edu | 2,645 | 2,569 | 76 | ||
| 2,213 | 821 | 328 | 518 | 546 | |
| consensus.app | 2,138 | 496 | 478 | 554 | 610 |
| Wikipedia | 1,767 | 609 | 469 | 689 | |
| cnki.net | 1,759 | 1,343 | 416 | ||
| perplexity.ai | 1,317 | 330 | 472 | 515 | |
| archive.org | 1,050 | 59 | 991 | ||
| libkey.io | 547 | 251 | 296 | ||
| yandex.edu | 458 | 458 | |||
| ac.uk | 431 | 106 | 325 | ||
| semanticscholar.org | 388 | 388 | |||
| other | 171,806 | 50,036 | 70,504 | 35,353 | 15,913 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.