The right of semantic core for the developed site is the most important thing. Upon its proper preparation depends on the fate of the site. In smisle whether the site is generally seen on the key demands in a retrieval system, or no. And if they see something in what positions. To begin with, that first vobschem a developed self semantic core, and then under it is typeset in sections, subsections and pages of the site. Something like a cross-cutting design in electronics. What is the semantic core? In simple words it is a list of key phrases or targeted search engine queries that visitors will have to come to the site. But it's not just a list, and list as a pyramid or pyramids on top of which is the main key phrase for the site, very often it is the main theme of the site.
For example: 'Work on the Internet' In simple words semantichekskoe core should encompass the theme site. If the site target highly specific, the semantic core of a pyramid of key phrases and words on the subject, ranging from the common key phrases with the most hits and ending with a highly directional key phrases the fewest hits per month. If the site does not target highly specific, the semantic core must be a multiple of the pyramids of keywords and phrases, each of which covers his subject present on the site. There is a standard sequence of operations to produce semantic site.