Every CEO needs to understand SEO unless he/she is living in the stone age!
Rank Check Tool: Checks the ranking of your website/webpage across popular search engines
Web CEO: Gets the list of key words and key phrases that will bring most targeted visitors to your site and measures the effectiveness of the website
Google Webmaster: The tool answers all crawling and indexing questions that enhance and increase traffic to the site, and connect you with your visitors
Google Analytics: Helps to gain rich insights into website traffic with Advanced Segmentation, Custom Reporting, Motion Charts, and more
Link Popularity: Checks the link popularity status of the web site on search engines and compares it to other web sites on the Internet
Text Analyzer: Provides information on the readability and complexity of a text, as well as statistics on word frequency and character count
W3C HTML Validation: This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc
W3C CSS Validation: Helps Web designers and Web developers check Cascading Style Sheets (CSS)
W3C RSS Validation: Checks syntax of Atom or RSS feeds
Website Grader: A tool that measures the marketing effectiveness of the website
XML Sitemap Generator: Creates an XML sitemap that can be submitted to Google, Yahoo and other search engines to help them crawl your website better
Xenu’s Link Sleuth: Checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets