Score your title, description & tags — 100% free, runs in your browser
Rather than guessing why a video is not being found, this scores the elements you control — title length and hooks, description depth, timestamps, tag count, and whether your main keyword appears consistently across all three.
Eight to fifteen relevant ones. Beyond thirty, relevance dilutes and you gain nothing.
Less than they once did. YouTube now leans on title, description and viewer behaviour. Tags help mainly with misspellings and variants.
Click-through rate and watch time, by a wide margin. Metadata gets you considered; the video itself decides whether you rank.