The keywords on the homepage should not be too broad. For example, take "software" - there are countless software programs online, and when users are looking for software, they don't just search for the term "software." This is where long-tail keywords come into play, but let's set that aside for now. Going further, the word "software" can be divided into several major categories: free software, portable (green) software, cracked software, and localized (Chinese) software. I think these terms belong to the second level of classification under "software." These types of keywords can generate traffic and improve rankings. Therefore, when we choose keywords, we should opt for more precise ones.