Website Analysis Tools can be used to generate the analysis reports about a website's performance. Different online tools are available for this purpose. Many of them are free and there are also many paid tools which provides many premium features. Some of such tools are GTmetrix, Alexa, Google Insights etc. This tools provide both free and premium features.
Using the Website Analysis Tools we can completely analyze a website. They provide the search engine ranking, traffic analysis to a website, history of a site, the suggestions to improve the site etc. such tools are really helpful in SEO for the improvement of a website.