Website optimization is made up of different facets that need to be optimized individually in order for your site to slowly reach the top spot in the first page of the search results. Onsite optimization – consisting of different factors that are inside your website need to be checked and optimized, offsite optimization – consists of different factors that deal with links that connect other websites to yours, and technical optimization – everything technical (codes and other factors that need IT expertise). All of these are important for your rankings and should not be disregarded. But the challenge is to find the pain points out of all these facets and fix them.
To qualify to appear in the snack pack or the resulting local search pages, your business needs to be verified by the Google My Business service, which involves registering, getting a physical post card from Google with a code, validating the code and setting up perfect NAP (Name, Address, Phone Number) data across your site, Google Maps, and other citation services and directory listings.
Jaaxy is an online keyword finder owned by Kyle Loudoun and Carson Lim that promises to help you find low-competition keywords that will help you improve your rank in the search engines. Other Jaaxy features include alphabet soup, which allows you to brainstorm for keywords; saved list, which allows you to save your list of keywords so that you can view them later; and search analysis, which lets you search what is already on search engines such as Yahoo, Google, and Bing. Jaaxy offers a free trial as you get started, and you can also choose between the pro version and the enterprise version if you like how it works.
Of all the tools listed in this article, Moz Link explorer is an old one & quite popular.  If you want to compare backlinks between two or more domains, Open Site Explorer is worth trying. This tool works best when you have a paid account of SEOMOZ though a free version of this tool is good enough to get you started checking the backlinks of your site and the sites of your competitors.