There are many provider agencies and identifying the best one can be difficult. However, there are simple techniques to find out if a professional search engine optimization company is authorized to lead your project. So, before signing a contract with an SEO Company, you will need:
Test your own positioning on the Google search engine: you cannot work with a Company that does not also benefit from a good positioning in the search engines. If she herself is not able to be among the top performers, will she is able to do you a good SEO?