Free tools to track and improve SEO performance

Developing a Search Engine Optimisation (SEO) strategy is critical to draw consumer traffic to your website as well as grow sales and revenue. Professional SEO tools track data about rankings, referrals, links and more, to help analyse SEO strategies and create road maps for success. Here are some of the free online SEO tools for new webmasters.
Google Analytics
Google Analytics, the web analytics service offered by Google, tracks and reports website traffic, and is one of the most widely used web analytics service on the internet – offered in two additional versions: the subscription based Google Analytics 360, targeted at enterprise users and Google Analytics for mobile applications, that allows gathering usage data from iOS and Android applications.
The free software provides complete search insights and website statistics to analyse site traffic in three simple steps. Just sign up with Google analytics with providing some basic information about which site you would like to monitor. After you receive a tracking code, paste it into your pages so that Google knows when your site is visited. In a few hours, you will be able to see data about your site.
The tool can identify poorly performing pages with techniques such as funnel visualisation, where visitors came from, how long they stayed and their geographical position.
Moz Open Site Explorer
Moz, the software as a service company based in the US, sells inbound marketing and marketing analytics software subscriptions. It hosts an online community of over one million globally based digital marketers and marketing related tools, and has a series of tools in its SEO toolbox, including Moz Keyword Explorer, a leading keyword research tool that provides keyword suggestions, SEO competition, search engine results page (SERP) features, saved lists and accurate search volume data.
Google trends
Google Trends, a public web facility of Google Inc. based on Google searches, tracks changes in search volumes for key terms. It shows how often a particular search-term is entered relatively to the total search-volume across various regions of the world, and in various languages.
SimilarWeb
SimilarWeb is an appropriate tool for competitor research. The digital market intelligence company sells an Application Programming Interface (API) product, custom reports and professional services. SimilarWeb uses data extracted from four main sources – a panel of web surfers made of millions of anonymous users equipped with a portfolio of applications, browser plugins, desktop extensions and software; global and local ISPs and data partnerships; web traffic directly measured from selected websites and a colony of web crawlers.
Google Keyword Planner
To know what people are searching for, Google AdWords Keyword Planner tool provides data around the search queries that happen in Google and other resources. The tool helps to build new search network campaigns or expand existing campaigns to help you get keywords and ad group ideas, historical statistics, keywords trend, competitions, bidding etc.
SEO SiteCheckup
SEO SiteCheckup is a software that tracks changes in search volume for key terms. It instantly analyses your SEO issues by professionally monitoring it and automatically keeps a track of weekly changes in more than 30 SEO variables. Moreover, the tool also aids to understand competitors’ SEO profile and shows solutions of how your SEO can improve against the competition.