SEO Web Tools, Social Media Optimization (SMO, SEO) Tools
Free SEO tools
Free Web Tools found in this section were built to assist webmasters in designing and adjusting their website(s) for search engine optimization with different search engines.
The Social Media Optimization (SMO) tool will analyze your markup code for Facebook's Open Graph protocol, Google+ Authorship, LinkedIn, and Twitter's Summary card data.
SeoCeros - Search engine optimisation audit.
Test how much you can save by compressing your images.
Compress Images Online:
Run the open source PageSpeed Modules on your Apache or Nginx server to automatically rewrite and optimize resources on your web site.
Social media marketing (SMM)
SMMplanner - the TOP social networks management system.