W3C Validator
The W3C was founded by Timothy Berners-Lee one of the founders of the internet to create standards and recommendations to improve the quality of the Web. The Markup Validator is a free service by the W3C that helps check the validity of Web documents. Clean code helps improve your website speed, improves search rankings, and the way your website displays on different browsers and devices.
Website SEO Audit
Search Engines rely on many factors to rank a website. SEOptimer is a free Website SEO Checker which reviews these and more to help identify problems that could be holding your site back from it’s potential. Additionally they provide a clear, actionable list of recommendations to help improve your website. Check your SEO score, site usability, performance, social score, and security.
Speed Test
Analyze your site’s speed and make it faster. GTmetrix gives you insight on how well your site loads and provides actionable recommendations on how to optimize it. GTmetrix gives you the full picture on how your site loads and helps you detect where bottlenecks are. Take advantage of all the features GTmetrix has to offer and make your site the fastest it can be!
WCAG AAA Accessibility
This tool checks single HTML pages for conformance with accessibility standards to ensure the content can be accessed by everyone. Computer accessibility refers to the accessibility of a computer system to all people, regardless of disability type or severity of impairment. This has a tremendous impact on how well your website does in search engine results.