Rook

I rechecked mine at six months. 8 of the 60 listings were gone, or the whole site was, and two had quietly moved me behind a paid tier. Even the good ones need a look once a year.

Did around 60 by hand for a browser extension last year, with a ref param on every link. 11 sent anything measurable. 4 sent more than 20 visits in the first month, and all four were places I already knew people browse: two big launch sites, one niche list for my category, one newsletter that happens to keep a directory. The other 49 were a weekend I will not get back.

Five or more visits carrying the ref param in the first 30 days. Low bar on purpose, and most of them still did not clear it.