To improve the ranking if your website, the basis is to understand what is the principle of SEO (Search Engine Optimization) , and how does it works.

Search engines, automatic indexers, and robots are automated programs or scripts that browse the Internet in a well-organized way . Crawler is the most commonly used term in SEO practice.

Thus, Google and other search engines use robots which obey an algorithm (which has become very complex) that will cross the web by identifying links and analyzing the source codes of websites. SEO is the action of these robots, which will index and position your website in their database. And the work of the SEOs is to understand / analyze / guess / anticipate this algorithm and its evolutions, in order to improve the positions of a website.

How does SEO work on your site?

The search engine robots will not see the website as we can see it visually. They will see what’s under the hood , retrieve data, update it and collect your information . Robots provide the requested information by making a copy of the web pages that the search engine processes later. (This is called “Caching”, which you can also see when you do a search, as a preview)

Once the information has been processed, the search engines index the pages and are able to rank the pages, according to the criteria of the algorithm. Computer scientists call this process of classification “Spidering” (Like a spider that weaves a huge web, the points being linked together, by the links made between the different sites)

The search engines are not the only ones to use robots. Robots can also be used to collect e-mail addresses, and automatically send them (This is what spammers do).

Absolutely nothing is done manually (except in exceptional cases, as a legal demand for example). Because they can search and sort the data much more quickly than a human could do. And they’re right, I think automating on the internet is one of the secrets to success . Thus, if they are robots that index and classify the sites, it is very easy to provide them what they want to see , if the rules are known.

Another point to know is that this algorithm evolves constantly . Every week with small updates, and from time to time large changes. Also, robots scan the web every day to update their index. So if a competitor site did something better than you did yesterday, it may be that tomorrow it will be before you, and that risk it will be present every day.

How to give search engines what they want

Many criteria are known today because they are easy to test. SEO agencies, sometimes have a laboratory that allows them to do tests to compare several criteria , and thus draw conclusions.

That being said, there are two important things to know:

The search engines, tend to try to model in their algorithm, the behavior of the web surfers. So, if you even try to satisfy your visitor before then, in the long run, Google will favor you. Before it was enough to list several times the key word wanted on a page, now it is much more complex than that. Make sure your visitors are satisfied, and your SEO will progress even after a major update of the engines.

A robot will never replace a human. As you can see, it remains a robot, which obeys the finger and the eye to “Si” of “And” and “Or” . So the person who knows what these Si, these Et and these Or will be able to satisfy 100% the criteria of the engines. Conclusion: Never neglect the rules of SEO . Even if you have to satisfy your visitor, it is not enough. For example today, a visitor can be very satisfied, whereas you have repeated the keyword only once in your text. And yet, the more this keyword is repeated (with a certain limit, again set by the algorithm), the more relevant the page is to Google. (This is the case today, it may not be the case tomorrow)

Understanding the functioning of search engines, understanding SEO, it allows you to “imagine” what the criteria used by these. Take the place of a visitor, view the items that interest you, see on a given site, and write down them. For example: You see the title, description, and URL when searching. Then you see the headlines, pictures, why not a video, or many sites make links to it.

Compare these sites that interest you with those that do not interest you, and note the differences.


“Use the information found on the web and use your entrepreneurial instinct. These two skills will enable you to respect the two points mentioned above. An algorithm is a sequence of logical instructions, if you use your logic, you will then use the same principles as the search engine robots.”


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