| Rank | Referring Site | Accesses | % | Bytes | % |
|---|---|---|---|---|---|
| 1 | http://cmgm.stanford.edu | 100,065 | 66.38 | 65,608,094,889 | 94.75 |
| 2 | http://a.bestsky.info | 6,446 | 4.28 | 41,792,725 | 0.06 |
| 3 | http://gravatar.com | 3,827 | 2.54 | 69,058,215 | 0.10 |
| 4 | http://www.stumbleupon.com | 1,545 | 1.02 | 4,624,620 | 0.01 |
| 5 | http://www.theknot.com | 1,195 | 0.79 | 21,563,775 | 0.03 |
| 6 | http://www.imagui.com | 1,061 | 0.70 | 295,409,743 | 0.43 |
| 7 | http://www.xmarksthescot.com | 744 | 0.49 | 70,483,572 | 0.10 |
| 8 | http://www.freebookcentre.net | 740 | 0.49 | 1,165,512,555 | 1.68 |
| 9 | http://med.stanford.edu | 595 | 0.39 | 5,534,993 | 0.01 |
| 10 | http://all.goromi.ru | 566 | 0.38 | 41,406,348 | 0.06 |
| 11 | http://corp.stumbleupon.com | 557 | 0.37 | 1,672,671 | 0.00 |
| 12 | http://www.purevolume.com | 556 | 0.37 | 10,033,020 | 0.01 |
| 13 | http://alfa-img.com | 406 | 0.27 | 45,665,068 | 0.07 |
| 14 | http://www.welcon.top | 354 | 0.23 | 872,709 | 0.00 |
| 15 | http://www.google.com | 263 | 0.17 | 65,925,148 | 0.10 |
| 16 | http://getporno.xyz | 244 | 0.16 | 4,402,980 | 0.01 |
| 17 | http://prmb.mobi | 231 | 0.15 | 20,840,127 | 0.03 |
| 18 | http://newporno.xyz | 228 | 0.15 | 4,114,260 | 0.01 |
| 19 | https://renthop.net | 221 | 0.15 | 3,987,945 | 0.01 |
| 20 | http://all4webs.com | 196 | 0.13 | 17,682,532 | 0.03 |
| 21 | http://www.dxy.cn | 191 | 0.13 | 125,375 | 0.00 |
| 22 | http://www.stanford.edu | 190 | 0.13 | 1,152,892 | 0.00 |
| 23 | https://cmgm.stanford.edu | 188 | 0.12 | 109,900,046 | 0.16 |
| 24 | http://m.facebook.com | 185 | 0.12 | 876,243 | 0.00 |
| 25 | http://web.stanford.edu | 181 | 0.12 | 2,053,750 | 0.00 |
| 26 | http://biochemistry.stanford.edu | 176 | 0.12 | 2,285,577 | 0.00 |
| 27 | http://www.zzzearnmoneyonline.blogspot.com | 136 | 0.09 | 1,481,885 | 0.00 |
| 28 | http://www.zhujima.com | 135 | 0.09 | 1,481,517 | 0.00 |
| 29 | https://www.google.com | 135 | 0.09 | 12,508,595 | 0.02 |
| 30 | http://www.jefaismonsite.fr | 126 | 0.08 | 11,367,342 | 0.02 |
| 31 | http://www.baidu.com | 118 | 0.08 | 3,759,944 | 0.01 |
| 32 | http://www.hhmi.org | 96 | 0.06 | 523,626 | 0.00 |
| 33 | http://watchmobilefree.info | 89 | 0.06 | 136,793 | 0.00 |
| 34 | http://kleinanzeigen-zurich.ch | 88 | 0.06 | 135,256 | 0.00 |
| 35 | http://teeneroticporn.info | 87 | 0.06 | 133,719 | 0.00 |
| 36 | http://pro-zoo.ch | 86 | 0.06 | 132,182 | 0.00 |
| 37 | http://blogs.rediff.com | 85 | 0.06 | 34,085 | 0.00 |
| 38 | http://girlfreeroom.info | 83 | 0.06 | 127,571 | 0.00 |
| 39 | http://besteroticadult.info | 83 | 0.06 | 127,571 | 0.00 |
| 40 | http://watchgaygirl.info | 82 | 0.05 | 126,034 | 0.00 |
| 41 | http://videosteenhidden.info | 81 | 0.05 | 124,497 | 0.00 |
| 42 | http://gruenes-appenzellerland.ch | 81 | 0.05 | 124,497 | 0.00 |
| 43 | http://privatexxxcam.info | 80 | 0.05 | 122,960 | 0.00 |
| 44 | http://camsporngirl.info | 77 | 0.05 | 118,349 | 0.00 |
| 45 | http://hausfrauensextreffen.ch | 77 | 0.05 | 118,349 | 0.00 |
| 46 | http://therossinis.com | 76 | 0.05 | 116,812 | 0.00 |
| 47 | http://tubehiddenprivate.info | 76 | 0.05 | 116,812 | 0.00 |
| 48 | http://cheapestwaytotravelhq.com | 75 | 0.05 | 115,275 | 0.00 |
| 49 | https://www.google.it | 74 | 0.05 | 3,070,135 | 0.00 |
| 50 | https://open.library.emory.edu | 73 | 0.05 | 323,436 | 0.00 |