Principles for search engines | Number of keywords on the page.

Number of keywords on the page:

Keywords must be used at least three to four times in the text on one page. The upper limit depends on the overall size of the text on the page. The larger the site, the more repetitions of keywords on the page can be. If we have more keywords, then we can write out as the key phrase, which is a combination of words consisting of a few key words.

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The best results in terms of SEO is achieved, if the keyword used in the text several times and it is always exactly the same shape and order. Furthermore, any words phrase should be used several times separately in other texts. There should also be some difference / variance in the mail characters between each repeated word.

Let's take an example. Suppose we have optimized the site for the term "SEO". Then it would be good for the site has been used about 7 times this term, as well as that in other parts of the text was about 5 times used the word "SEO", and other parts then about 3 times used the word "optimization". The numbers listed here are purely for guidance, but in principle the idea of ​​showing general SEO.

Principles for search engines :

For good SEO must know architecture such as search engines and search engine works. All search engines have the following main elements:

1. Spider - A program that is disguised as a web browser and can download website.


2. Crawler - a program that automatically follows all links on each web page.


3. Indexer - a program that analyzes web pages downloaded Spider and Crawler.


4. Database - A repository for downloaded and processed pages.


5. Results - A listing of search results from the database.


6. Web server - which is responsible for the interaction between the user and the search engine.

Specific implementations of search algorithms can vary and differ. For example, often works as one Spider + Crawler + Indexer that downloads web pages, analyzes them, and then index the is it uses to find new sources. However, that all components SOU own search engines and on the principle of SEO is not affected. Principles

1. Spider. This program download website works as a web browser. The difference is that the browser displays information to users mostly graphically, while Spider has no visual display, works directly with the HTML page code.


2. Crawler. This program finds all links on each page. The task is to find out where they are and what links where these links lead. The program aims to find new links and thus new documents that are not yet known for search engines.


3. Indexer. The program analyzes each page and then also analyzes individual page elements such as text, headers, footers, page structure, stylistic features, special HTML tags, etc.


4. Database. This is a space for storing data, whether it is a website or downloaded for analysis of the site. Sometimes called a database search engine index.


5. Results. They're listing search results based on user query and requirement. Determines here in what order the results are displayed on the page. All this is accomplished by internal search engine algorithms including evaluation page rank.


6. Web server. Search usually includes HTML page with an input field where the user can enter a search query and a Web server processes a query and is responsible for the correct display of search results the user as an HTML page. Principles