| Rank | Website | Category | Monthly Visitors | Mar-May Gain | Jan–May 26 Trend |
|---|---|---|---|---|---|
| 1 |  | Animals | 14M | -436k | |
| 2 |  | Animals | 50M | +4m | |
| 3 |  | Animals | 5M | -311k | |
| 4 |  | Animals | 2M | -262k | |
| 5 |  | Animals | 26K | N/A | |
| 6 |  | Animals | 2M | -2m | |
| 7 |  | Animals | 603K | N/A | |
| 8 |  | Animals | 14M | -99k | |
| 9 |  | Animals | 1M | +789k | |
| 10 |  | Animals | 543K | +107k | |
| 11 |  | Animals | 15M | +932k | |
| 12 |  | Animals | 5M | +911k | |
| 13 |  | Animals | 2M | -1m | |
| 14 |  | Animals | 4K | -53k | |
| 15 |  | Animals | 1M | +48k | |
| 16 |  | Animals | 4M | +446k | |
| 17 |  | Animals | 640K | +139k | |
| 18 |  | Animals | 908K | +319k | |
| 19 |  | Animals | 640K | +403k | |
| 20 |  | Animals | 7M | +482k | |
| 21 |  | Animals | 708K | +674 | |
| 22 |  | Animals | 1M | +393k | |
| 23 |  | Animals | 1K | N/A | |
| 24 |  | Animals | 1M | -1m | |
| 25 |  | Animals | 2M | +751k | |
| 26 |  | Animals | 377K | -133k | |
| 27 |  | Animals | 557K | +263k | |
| 28 |  | Animals | 6M | +2m | |
| 29 |  | Animals | 46K | -5k | |
| 30 |  | Animals | 1M | +1m | |
| 31 |  | Animals | 1M | +278k | |
| 32 |  | Animals | 5M | -970k | |
| 33 |  | Animals | 2M | N/A | |
| 34 |  | Animals | 156K | -50k | |
| 35 |  | Animals | 504K | -250k | |
| 36 |  | Animals | 66K | N/A | |
| 37 |  | Animals | 256K | -145k | |
| 38 |  | Animals | 319K | +25k | |
| 39 |  | Animals | 370K | -282k | |
| 40 |  | Animals | 4M | -299k | |
| 41 |  | Animals | 874K | -321k | |
| 42 |  | Animals | 1M | +31k | |
| 43 |  | Animals | 20K | N/A | |
| 44 |  | Animals | 323K | -93k | |
| 45 |  | Animals | 80K | -25k | |
| 46 |  | Animals | 215K | -286k | |
| 47 |  | Animals | 528K | +179k | |
| 48 |  | Animals | 2M | -44k | |
| 49 |  | Animals | 969K | -360k | |
| 50 |  | Animals | 2M | -373k |