SEO or Search Engine Optimization is a process which is of utmost importance to most website owners and online businesses. People use different techniques or methods to optimize their websites for search engines like Google, Yahoo etc. There are many tools available online, that people can use to analyze the outcome of their SEO efforts and to determine if their website has been efficiently optimized.  Here is a list of tools that can help you in SEO analysis:DiagnosticowebThis tool is very helpful in SEO analysis and it’s quite simple to use.  You just need to enter your web address and click on the ‘generate results’ tab. Within a few seconds the site will give you access to this data:Charging time of a page
Date and time of last visit by Google bots and indexing software of Yahoo, Bing etc.
Page Rank as per Alexa Rank, Technorati Rank and other ranking sites
List of directories in which the webpage is included (like DMOZ, Yahoo, etc)
Pages with backlinks to your site, along with your own backlinks
Number of pages indexed in Google, Yahoo, and BingThis data will help you in identifying the areas where changes are necessary, in order to improve the positioning of the site. This tool also offers a couple of scripts that you can use to display these statistics on your website.w3optimizerThis is also a simple tool and it can be used to analyze several important aspects of SEO of a website. It provides a good understanding of the errors that can be found during the SEO analysis.  It also enables us to understand the importance of the different aspects of SEO, which are vital in positioning our website in search engines.  Among the things discussed are:Analysis of Meta Keywords and Meta Description
Correct use of the label

Weight of Keywords
Anchor Tag (very important)
Links generatedWebsite graderThis tool gives you an option to enter the URL of your website and get a detailed SEO analysis report about the same. They even send you the report by mail.The different data obtained are as follows:Meta Data Analysis
Analysis of inner pages
Analysis of several images
Domain Information
Directories in which the page is listed
Analysis of the Blogosphere
Links on different sites and moreThese are few of the tools that you can use in the process of SEO analysis.