A quick, honest read on how competitive a keyword looks — based on its shape, your site's age and the niche. Clearly labelled as an estimate, not real ranking data.
Short, one-word keywords are usually the hardest: millions of pages compete for them, and the winners are usually the biggest sites in the niche. Longer phrases (four words or more) are usually easier, because fewer pages target them exactly. Commercial words like "best", "buy" or "cheapest" make a keyword harder — money is at stake, so strong pages fight for it. Informational words like "how to" or "what is" usually make it easier. A new site finds everything harder than an established one, and finance, health, SaaS and legal topics are more competitive than most. The score combines these factors into a 0–100 estimate.
If a keyword scores "Very hard", do not delete it — break it down. Find longer, more specific versions of the same topic ("best running shoes for beginners with flat feet") and rank for those first. If it scores "Easy" or "Medium", check the actual search results: if the top ten are forums, small blogs or thin pages, the estimate is probably right; if they are major brands with thousands of links, trust the search results over this tool. Either way, one keyword never decides a strategy — build a cluster of related pages around the topic instead of betting everything on one phrase.