| Referrer | Total referrals | 2025-04 | 2025-03 | 2025-02 | 2025-01 |
|---|---|---|---|---|---|
| 135,005 | 24,897 | 35,948 | 46,004 | 28,156 | |
| nih.gov | 17,096 | 4,219 | 5,295 | 4,656 | 2,926 |
| eScholarship | 6,605 | 1,975 | 1,630 | 1,814 | 1,186 |
| ablesci.com | 4,797 | 824 | 859 | 1,323 | 1,791 |
| Bing | 2,930 | 862 | 959 | 634 | 475 |
| baidu.com | 2,548 | 489 | 436 | 818 | 805 |
| chatgpTwitterm | 1,594 | 532 | 452 | 326 | 284 |
| cdlib.org | 887 | 552 | 216 | 119 | |
| ebsco.com | 465 | 114 | 142 | 117 | 92 |
| duckduckgo.com | 426 | 110 | 113 | 108 | 95 |
| Yahoo | 407 | 261 | 63 | 83 | |
| ebscohosTwitterm | 372 | 139 | 125 | 108 | |
| Wikipedia | 370 | 119 | 154 | 97 | |
| perplexity.ai | 357 | 137 | 116 | 104 | |
| universityofcalifornia.edu | 305 | 70 | 63 | 81 | 91 |
| vinayakkprasad.com | 249 | 35 | 136 | 78 | |
| yandex.ru | 213 | 100 | 113 | ||
| ac.uk | 190 | 52 | 80 | 58 | |
| oatd.org | 139 | 88 | 51 | ||
| clarivate.cn | 132 | 70 | 62 | ||
| 130 | 130 | ||||
| edu.cn | 115 | 80 | 35 | ||
| semanticscholar.org | 111 | 111 | |||
| 107 | 107 | ||||
| webofscience.com | 87 | 52 | 35 | ||
| other | 16,035 | 3,134 | 5,164 | 4,160 | 3,577 |
Note: Due to the evolving nature of web traffic, the data presented here should be considered approximate and subject to revision. Learn more.