Page Speed Insights is one of the great open source SEO tool introduced by Google. Just enter a URL of a page, the SEO score of which you want to analyze and click on Analyze button. It then shows the loading speed and optimization level (low, medium, or good) for desktop and mobile versions. Besides this, it also displays the steps for how to fix the optimization errors.
Google Keyword Planner is a keyword research tool introduced by Google. By using this tool, you can search for the most appropriate keywords for your article. It not only tells about the number of searches per month for every keyword but also lets you know the competition level and suggested bid of each keyword for marketing purposes. You can search for more than one keyword in this tool and it displays all the relevant keywords for each typed keyword. The entire information can also be downloaded in Excel format.
Google Analytics is a complete analysis tool in the field of SEO. You can use this tool of Google for free. It lets you track the traffic from the internet on your website. You can view different graphs for traffic on a website from different online media such as Gmail, Facebook, etc.
It is a handy SEO research tool available for free. Simply enter a keyword and it displays all the relevant keyword with respect to the entered keyword. You can copy all the keywords in just a click and export the entire list of keywords in CSV and Excel formats.
Moz Local Listing Store shows the results of your searches for more than 15 different sources such as Google, Foursquare, Facebook, etc. It displays the information which is good and the information which is to be fixed.