From my head on seo expert
SEO techniques can be very powerful and a good search engine marketing team should fully exploit the options available of the repertoire of the system. Some services offer SEO tools that provide only momentary search rankings and it is in your best interest to only engage those that provide more stable outcomes. As a matter of fact certain search engine marketing services employ questionable techniques, primarily black hat SEO, and since search engine algorithms undergo frequent updation the technique employed often become redundant. Even if the techniques they use may initially secure an impressive boost in site hits, avoiding such fly by night scammers is in your best interest in the long run. This is because search engines often rely on site credibility, and by employing fraudulent optimization techniques you only risk damage to the integrity and reputation that you may have built over time.