Supplement 1: the classification of keywords and the purpose of optimizing keywords;
Keywords can be divided into: core keywords, accurate words, high conversion words, extended words, dark horse words, competing words, long tail keywords, questioning words and so on.
Keyword optimization is to make the target keywords of the website get a better ranking on a search engine. Let more users quickly find their own website keywords.
Supplement 2: Optimization Skills:
The location and layout of keywords are also important. Keywords are the core of an article, so the importance of keywords is self-evident. When keywords appear in important positions or adopt important formats, Baidu Spider will give them higher weight, so when optimizing the website, we should pay attention to the location layout of keywords. You can't blindly lay out or add keywords, which is not worth the loss. According to my experience, websites with keywords at the top of the title tend to have higher ranking weight than those behind them.