Keywords refer to words with large search volume and inaccurate templates, which usually represent an industry or a thing, such as real estate, finance, clothing and so on.

Keywords come from English "keywords", which refer to the words used by a single media when making and using indexes. It is a vocabulary in library science. Keyword search is one of the main methods of online search index, and it is the specific name terms of products, services and companies that visitors want to know.

Before you collect the keywords you need, it is very important to know how ordinary people use keywords. People generally do not use single words when searching, but use phrases or phrases. This will play a more important role in website optimization.