Insufficient frequency of appearance of the keyword on the corresponding page or block of text. This parameter is important when ranking a page in a search engine. Quite often this term is used when promoting a site.
An indicator that indicates that similar content is already available on the Internet. Such material search algorithms will ignore. Quite often this term is used to promote the site.
The stage of website development, in which the drawn design is transferred to the site through the writing of HTML and CSS code. Quite often this term is used in website development.