1-20 (of 156,653 domains)
| # | Domain | Citations |
|---|---|---|
| 1 | www.who.int | 353,283 |
| 2 | www.cdc.gov | 194,766 |
| 3 | www.ncbi.nlm.nih.gov | 173,639 |
| 4 | arXiv.org | 169,214 |
| 5 | ec.europa.eu | 147,261 |
| 6 | cran.r-project.org | 134,815 |
| 7 | www.fda.gov | 120,836 |
| 8 | github.com | 110,930 |
| 9 | www.w3.org | 103,850 |
| 10 | www.R-project.org | 93,243 |
| 11 | en.wikipedia.org | 92,323 |
| 12 | www.nytimes.com | 80,320 |
| 13 | www.fao.org | 74,735 |
| 14 | apps.who.int | 74,701 |
| 15 | clinicaltrials.gov | 71,714 |
| 16 | www.epa.gov | 67,435 |
| 17 | www.theguardian.com | 61,826 |
| 18 | www.youtube.com | 57,195 |
| 19 | bit.ly | 52,222 |
| 20 | www.un.org | 51,762 |