| OS | Man Page | Section | Hits |
|---|---|---|---|
| minix | mdoc-validate | 1 | 144 |
| xfree86 | mdoc-validate | 1 | 142 |
| suse | mdoc-validate | 1 | 141 |
| ultrix | mdoc-validate | 1 | 141 |
| posix | mdoc-validate | 1 | 131 |
| x11r4 | mdoc-validate | 1 | 123 |
| php | mdoc-validate | 1 | 121 |
| debian | mdoc-validate | 1 | 118 |
| hpux | mdoc-validate | 1 | 117 |
| plan9 | mdoc-validate | 1 | 116 |