| Referrer | Total referrals | 2026-08 | 2026-07 | 2026-06 | 2026-05 |
|---|---|---|---|---|---|
| 552,346 | 161,130 | 104,107 | 132,349 | 154,760 | |
| eScholarship | 375,715 | 122,294 | 63,433 | 99,396 | 90,592 |
| cdlib.org | 61,861 | 43,880 | 1,627 | 7,179 | 9,175 |
| Bing | 36,137 | 15,903 | 3,340 | 10,724 | 6,170 |
| Yahoo | 19,268 | 9,171 | 1,658 | 5,060 | 3,379 |
| yandex.org | 18,004 | 8,998 | 1,457 | 4,235 | 3,314 |
| baidu.org | 17,811 | 9,003 | 1,498 | 4,195 | 3,115 |
| ucop.edu | 16,041 | 2,303 | 4,874 | 8,750 | 114 |
| osti.gov | 7,761 | 740 | 3,293 | 2,972 | 756 |
| nih.gov | 6,051 | 1,050 | 943 | 1,322 | 2,736 |
| chatgpTwitterm | 5,300 | 1,394 | 1,495 | 1,763 | 648 |
| duckduckgo.com | 4,791 | 2,812 | 241 | 249 | 1,489 |
| berkeley.edu | 3,022 | 2,946 | 76 | ||
| consensus.app | 1,655 | 396 | 402 | 434 | 423 |
| baidu.com | 1,244 | 1,244 | |||
| kiphub.com | 1,113 | 1,113 | |||
| archive.org | 762 | 45 | 717 | ||
| substack.com | 710 | 189 | 521 | ||
| perplexity.ai | 564 | 201 | 363 | ||
| yandex.edu | 535 | 535 | |||
| doi.org | 458 | 171 | 287 | ||
| europepmc.org | 365 | 365 | |||
| ac.uk | 304 | 87 | 217 | ||
| 261 | 65 | 37 | 84 | 75 | |
| uni-kassel.de | 259 | 259 | |||
| other | 92,477 | 23,291 | 55,633 | 8,713 | 4,840 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.