On what is SEO, sem correct understanding SEO and SEM

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Many just contact SEO friends, for SEO are some confused and puzzled. Today, if the words on the simple for you to introduce what is SEO, what is sem, SEO and sem differences, I hope we can help! Search engine optimization (searching engine optimization, short seo). According to the theoretical mechanism of search engine, the interactive diplomatic strategy between the website text language and the site is designed and deployed to explore the maximum potential of the website. So that it in the search engine has a strong natural ranking competitive advantage. Thus, promote the enterprise online sales and strengthen the network brand.

Speaking more commonly, is to search engine for their own site optimization. SEO is mainly through the site's structure, labels, content and other aspects of optimization, so that Baidu, Google, Yahoo and other search engines more easily to search the content of the site, and so that each page of the site in Baidu and other search engines to obtain a higher weight, so as to get good rankings and traffic.

So what is a search engine? A search engine is a software program that helps users find information stored in personal computers and computer networks (for example, Baidu, Google). Many people think that SEO is to optimize the site to do good keyword ranking to do it. Personally think, SEO can not be too limited. SEO is not only the keyword ranking to do so simple, more should consider is the keyword ranking of the actual conversion rate. So, SEO done, and then extended the SEM (search engine marketing).

So, what is SEM (search engine marketing)? Search engine marketing is based on the search engine Platform Network marketing, the use of people for search engine dependence and use habits, when people search for information, the marketing information to show in front of the user.

What are the differences between SEO and SEM? SEO is mainly for the ranking of keywords, site traffic, the structure of the site, search engine pages included in the data; SEM is based on the SEO technology to expand the search engine to bring the commercial value, planning an effective network marketing program, including a series of web site operation strategy analysis, and implementation, marketing results to detect. SEM search engine marketing methods have three kinds: SEO (search engine optimization), keyword ads, PPC bidding rankings.

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The above is if the words for SEO and SEM do some simple introduction, welcome everyone to shoot bricks!