| URL | リンク総数 |
|---|
| https://usefulsounds.jp/category/test-tone/ | 201 |
| https://usefulsounds.jp/category/se/ | 93 |
| https://usefulsounds.jp/category/test-tone/sinewave/ | 89 |
| https://usefulsounds.jp/category/test-tone/sawtoothwave/ | 72 |
| https://usefulsounds.jp/category/nature/ | 62 |
| https://usefulsounds.jp/category/test-tone/squarewave/ | 58 |
| https://usefulsounds.jp/category/test-tone/trianglewave/ | 58 |
| https://usefulsounds.jp/category/test-tone/noise/ | 51 |
| https://usefulsounds.jp/category/nature/river/ | 44 |
| https://usefulsounds.jp/post-970/ | 44 |
| https://usefulsounds.jp/post-968/ | 44 |
| https://usefulsounds.jp/category/nature/falls/ | 41 |
| https://usefulsounds.jp/post-966/ | 41 |
| https://usefulsounds.jp/post-955/ | 38 |
| https://usefulsounds.jp/post-953/ | 38 |
| https://usefulsounds.jp/category/nature/%e9%9b%a8/ | 37 |
| https://usefulsounds.jp/category/nature/%e6%b5%b7/ | 37 |
| https://usefulsounds.jp/ | 31 |
| https://usefulsounds.jp/category/test-tone/noise/pinknoize/ | 25 |
| https://usefulsounds.jp/category/test-tone/noise/whitenoize/ | 25 |