| OS | Man Page | Section | Hits |
|---|---|---|---|
| ultrix | mdoc-validate | 1 | 327 |
| minix | mdoc-validate | 1 | 311 |
| xfree86 | mdoc-validate | 1 | 308 |
| posix | mdoc-validate | 1 | 301 |
| suse | mdoc-validate | 1 | 300 |
| hpux | mdoc-validate | 1 | 289 |
| debian | mdoc-validate | 1 | 287 |
| x11r4 | mdoc-validate | 1 | 273 |
| plan9 | mdoc-validate | 1 | 269 |
| php | mdoc-validate | 1 | 220 |