| Referrer | Total referrals | 2026-08 | 2026-07 | 2026-06 | 2026-05 |
|---|---|---|---|---|---|
| 1,730,636 | 515,888 | 444,004 | 403,412 | 367,332 | |
| eScholarship | 590,528 | 190,985 | 100,509 | 153,751 | 145,283 |
| cdlib.org | 109,615 | 49,867 | 6,587 | 21,224 | 31,937 |
| Bing | 60,046 | 27,423 | 5,526 | 14,503 | 12,594 |
| yandex.org | 27,208 | 14,214 | 2,458 | 6,257 | 4,279 |
| Yahoo | 24,562 | 14,710 | 2,774 | 7,078 | |
| osti.gov | 24,406 | 1,993 | 12,006 | 8,289 | 2,118 |
| baidu.org | 22,823 | 14,100 | 2,485 | 6,238 | |
| ucop.edu | 19,839 | 2,879 | 5,665 | 11,295 | |
| duckduckgo.com | 17,377 | 9,423 | 982 | 996 | 5,976 |
| ucla.edu | 12,117 | 2,931 | 1,982 | 3,271 | 3,933 |
| chatgpTwitterm | 11,226 | 4,071 | 3,091 | 2,500 | 1,564 |
| nih.gov | 9,890 | 2,753 | 2,813 | 1,349 | 2,975 |
| doi.org | 7,825 | 2,263 | 1,261 | 1,877 | 2,424 |
| baidu.com | 4,968 | 56 | 4,912 | ||
| Wikipedia | 4,467 | 1,279 | 981 | 1,012 | 1,195 |
| 2,844 | 909 | 569 | 641 | 725 | |
| cnki.net | 2,790 | 2,129 | 661 | ||
| berkeley.edu | 2,569 | 2,569 | |||
| consensus.app | 1,515 | 484 | 484 | 547 | |
| kiphub.com | 1,097 | 1,097 | |||
| 972 | 274 | 388 | 310 | ||
| archive.org | 893 | 50 | 843 | ||
| ecosia.org | 471 | 175 | 296 | ||
| claude.ai | 415 | 191 | 224 | ||
| other | 191,964 | 71,426 | 74,543 | 19,857 | 26,138 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.