Algorithms of search engines and optimization
The knowledge of search engine algorithms is now required to improve the ranking of a site in search results. Google, Yahoo and Bing have common rules but also differences.
However, there are rules of good practices to be followed and which are given by search engines, otherwise once blacklisted the Alexa graph of the traffic could look like the image below.
- SEO FAQ. Questions about optimization for search engines.
- Glossary. The terms used by SEO professionals.

Avoid black hat techniques (Alexa graph)
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