Building a strong site architecture and providing clear navigation will help search engines index your site quickly and easily. This will also, more importantly, provide visitors with a good experience of using your site and encourage repeat visits. It’s worth considering that Google is increasingly paying attention to user experience.
To do SEO, it is very important to know what search engines are looking for. A consultant can guide you how to move forward with SEO process, practices to be adopted to influence the results and the keywords to be optimized, technical upgradation to be done and optimization of the content in the website so as to perform better and friendly with search engines.