List of 15 Free SEO Tools

Have you ever  checked your website or blog to see how search engine optimized it is? Do you know your pagerank? How many backlinks you have to your site?

Do you know if your headings and content have the appropriate density of keywords in them?

If you don’t have a clue, don’t despair! There are many FREE SEO Tools available to help you learn how well you are doing. This list of 15 FREE SEO TOOLS will help you to identify how well your web site is optimized to appear in free search engine listings.

1. Bing Webmaster Tools – Take advantage of everything Microsoft has to offer and get the best results possible for your business or site.
2. DigitalPoint Tools – provides links to various tools to help webmasters with SEO.
3. Google Webmaster Tools –  Improve your site’s visibility in Google search results. It’s free. Google Webmaster Tools provides you with detailed reports about your pages’ visibility on Google.
4. GSiteCrawler – The GSiteCrawler will help you generate the best Google Sitemap file for your website. The GSiteCrawler uses different ways to find all the pages in your website and can generate all sorts of files, statistics and more. The sitemaps file format has lately been also adapted by Yahoo! – even MSN/Live.com is pledging it’s support.
5. Hubspot Grader – Welcome to Grader.com A family of tools that helps measure all that matters in inbound marketing.
6. Majestic SEO – Majestic-SEO provides Competitive Link Intelligence to SEO specialists. We believe we are the planets most comprehensive backlinks provider, and offer a number of tools to allow access to this valuable information.
7. Open Site Explorer – Open Site Explorer is a free tool that provides webmasters the ability to see up to 10,000 links to any site or page on the web via the Linkscape web index. Powered by SEOmoz
8. PostRank – PostRank is a scoring system developed by PostRank (formerly AideRSS) to rank any kind of online content, such as RSS feed items, blog posts, articles, or news stories.
9. LinkVendor by SearchMetrics – These SEO Tools found on Linkvendor were built to help you to understand search engine optimization and to adjust your website to different parameters search engines like. Use our tools to find out what competitors did and interpret all data for your advantage.
10.   SEOBook Tools – Free SEO Tools to Help You Optimize Your Website. Our free SEO tools allow you to create meta tags, perform keyword research, and spy on competitors with competitive research tools and …
11.   SEOChat Tools – SEO Chat Tools The SEO Tools found in this section were designed to assist you in configuring your website(s) for search engine optimization within the different search engines.
12.   SEOEng – SEOENG LLC. is a leader and innovator of Search Engine Technology. SEOENG® is an acronym for Search Engine Optimization Engine®, and is the only Search Engine of its kind. SEOENG®, unlike other Search Engines, is not used for “searching”; it is used as a “window” into what Search Engines see, empowering our users with previously guarded information about their Website’s rankings.
13.   SEOmoz Tools – The SEOmoz toolset includes over twenty SEO tools designed to help with every aspect of search engine optimization, including on-page targeting, site crawlability, competitive analysis, rank checking and keyword difficulty.
14.   WebCEO – If you are serious about search engine marketing and optimization, even the Free Edition of Web CEO 8.1 will help you:  a) Increase traffic from search engines, Understand visitors’ behavior, b) get complete analysis of revenues and sales conversions, plus measure efficiency of ad campaigns, c) Ensure your Web site is ultra-reliable.
15.   Yahoo! Site Explorer – Site Explorer allows you to explore all the web pages indexed by Yahoo! Search. View the most popular pages from any site, dive into a comprehensive site map, and find pages that link to that site or any page

My favorites are Hubspot grader and SEOmoz Tools. Which ones do you most like to use?