Related keywords can effectively highlight the theme of the website and increase the traffic of the website. Its role is specifically reflected in the following three aspects.
1. Supplementary explanation of core keywords
Related keywords are an important supplement and explanation of core keywords, which can make the theme of the website clearer. For example, the keywords of website A are computer, Lenovo, Asus, Apple, HP, Founder, and the keywords of website B are computer, laptop, ultra-thin computer, all-in-one computer, desktop computer. Compared with website A and website B, the auxiliary keywords “laptop, ultra-thin computer, all-in-one computer, desktop computer” in website B are an important supplement to the main keyword “computer”, which is more relevant than the page of website A.
2. Control the density of keywords
Related keywords can effectively increase the frequency of core keywords, control the density of keywords, and prevent the phenomenon of keyword stacking due to too many keywords. For example, the keywords of page 1 are computer, laptop, ultra-thin computer, all-in-one computer, desktop computer, and the keywords of page 2 are computer, computer, computer, computer, computer, computer. After searching the content in page 1, the search engine can get words such as “computer, notebook, computer, ultra-thin, computer, all-in-one, computer, desktop, computer”, etc. The keyword density of the main keyword “computer” is 5/9, and the word frequency is 5; while the keyword density of the main keyword “computer” in page 2 is 100%, and the word frequency is 5.
3. Increase the probability of the page being retrieved
Related keywords are extensions of core keywords. When users search for words related to them, they may also search for the target page, which can increase the probability of the web page being included in the search engine. For example, the core keyword of a page is “computer”, and the related keywords are “computer price”, “computer brand”, etc. In addition to searching for the page by searching for “computer”, users can also find the page in the search results of related keywords such as “computer price” and “computer brand”.