Buying High Tf CF DA PA dofollow links will also improve your site's metrics as well as rank your site higher on Google.
Page Authority (PA)is a score that predicts how well a specific page will rank on search engine result pages.
Domain Authority(DA)Page Authority is a holistic score and difficult to influence directly. It is made up of an aggregate of metrics that each have an impact on the score.
Trust Flow(TF) is a number predicting how trustworthy a page is based on how trustworthy sites tend to link to trustworthy neighbors.
Citation Flow(CF) is a number of predicting how influential a URL might be based on how many sites link to it.
The flow metrics update every day, so they are more accurate.Domain authority is a measure of the power of a domain name and is one of many search engine ranking factors.