To improve sites, you need to choose the right keywords. They are the main building blocks of a search engine.
Keywords come across in the text with a certain frequency, they will help to promote the site to the first positions faster and better. Should you insert a certain number of keywords into the texts?
Basically, a search query is measured in terms of percentage. It is generally accepted that the density of the request will be equal to 7%, where you will have to determine the percentages intuitively. There are no special formulas. Moreover, having analyzed texts on any topic in the sites you visit, you may not come across a single phrase from the query in the search engine.
If the text is oversaturated with keywords, then the site can filter this text. You should use the keyword combination once or twice, then during the ranking you will get the correct result.
Qc system is arranged from the inside
How exactly does a webmaster affect the ranking of their website? Google Webspam team director Matt Cutts gives advice: “Think about what keywords you want to use? In order for the correct search queries to be present without harm to the text, the text must be very large. In this case, the text must be readable."
Try to fill the sources with interesting and unique information, without repeated phrases inappropriately inserted into the text. Only then will the result of your labor be well appreciated.