| Referrer | Total referrals | 2026-08 | 2026-07 | 2026-06 | 2026-05 |
|---|---|---|---|---|---|
| 1,694,552 | 518,993 | 448,603 | 377,605 | 349,351 | |
| eScholarship | 533,485 | 177,518 | 100,656 | 130,888 | 124,423 |
| osti.gov | 206,102 | 18,438 | 93,889 | 74,400 | 19,375 |
| cdlib.org | 64,330 | 29,268 | 3,509 | 7,266 | 24,287 |
| Bing | 54,314 | 24,477 | 5,278 | 13,158 | 11,401 |
| Yahoo | 21,761 | 13,582 | 2,381 | 5,798 | |
| baidu.org | 20,036 | 13,260 | 1,954 | 4,822 | |
| yandex.org | 19,911 | 13,191 | 1,995 | 4,725 | |
| ucop.edu | 19,551 | 2,019 | 6,598 | 10,820 | 114 |
| duckduckgo.com | 14,410 | 8,255 | 786 | 5,369 | |
| chatgpTwitterm | 14,048 | 5,108 | 3,767 | 3,236 | 1,937 |
| doi.org | 7,675 | 2,364 | 1,238 | 1,934 | 2,139 |
| 7,177 | 6,121 | 177 | 521 | 358 | |
| baidu.com | 4,561 | 4,561 | |||
| Wikipedia | 3,752 | 1,015 | 764 | 932 | 1,041 |
| 3,072 | 942 | 828 | 594 | 708 | |
| berkeley.edu | 2,748 | 2,635 | 113 | ||
| nih.gov | 2,550 | 486 | 701 | 1,363 | |
| repec.org | 1,750 | 759 | 991 | ||
| cnki.net | 1,544 | 1,214 | 330 | ||
| consensus.app | 1,393 | 397 | 473 | 523 | |
| perplexity.ai | 1,319 | 554 | 765 | ||
| claude.ai | 1,090 | 209 | 219 | 327 | 335 |
| archive.org | 794 | 794 | |||
| ecosia.org | 736 | 207 | 253 | 276 | |
| other | 187,949 | 77,596 | 54,958 | 26,034 | 29,361 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.