A regular auditing of the website is important as it helps in finding out the errors or mistakes which affect the search engine crawling & ranking. A site once launched would have duplicate issues, server problems, linking & others which raises a red flag for the search engine penalty. There are many free auditing tools available online which can be run regularly to uncover any issues related to sites & they can be corrected. The tools provide information on meta tags, alt tags, navigation, site map, header tags, linking errors & others. A regular auditing would help in fixing the errors & achieve higher rankings in search engines. The audit tools also check robots.txt file & social media profiles on facebook, twitter & others. Tools also have a scoring system based on which a score would be assigned to the website after auditing. The score can be improved over time with required changes to the site.