It is recommended to rely on Google’s official SEO recommendations, tips and tools as compared to any third-party resources. Google offers many tools and resources that can be helpful to all need to optimize their own or their clients’ websites:
Following these guidelines will help Google find, index, and rank your site. Pay very close attention to the “Quality Guidelines,” which outline some of the illicit practices that may lead to a site being removed entirely from the Google index or otherwise impacted by an algorithmic or manual spam action. If a site has been affected by a spam action, it may no longer show up in results on Google.com or on any of Google’s partner sites.
Check out Google’s Search Engine Optimization Starter 30-page Guide. If you’re in a hurry, Google also has a one-page version for you.
Webmaster Tools is a free service offered by Google that helps you monitor and maintain your site’s presence in Google Search results. You don’t have to sign up for Webmaster Tools for your site to be included in Google’s search results, but doing so can help you understand how Google views your site and optimize its performance in search results.
Google Analytics is a service offered by Google that generates detailed statistics about a website’s traffic and traffic sources and measures conversions and sales. It’s the most widely used website statistics service.