W3C Markup Validation Service validator.w3.org
This validator checks the markup validity of Web documents. Validate by URL, File upload, or enter code directly for validation.
WebAim WAVE Web Accessibilty Tool http://wave.webaim.org
Online tool checks page accessibility, displays page with tags to show good and bad points.
W3C Link Checker http://validator.w3.org/checklink
This validator checks links and anchors in Web pages or full Web sites.
W3C mobileOk Checker http://validator.w3.org/mobile/
This checker performs various tests on a Web Page to determine its level of mobile-friendliness.
Web accessibility in mind. WebAIM offers complete web accessibility services. WebAIM can help ensure that your site is accessible and usable to those with disabilities
W3C Introduction to Web Accessibility http://www.w3.org/WAI/intro/accessibility.php
Web accessibility means that people with disabilities can use the Web. More specifically, Web accessibility means that people with disabilities can perceive, understand, navigate, and interact with the Web, and that they can contribute to the Web.
WebAim Section 508 Checklist http://webaim.org/standards/508/checklist
The following standards are excerpted from Section 508 of the Rehabilitation Act, §1194.22. The pass/fail criteria in this document represent an interpretation of Section 508 web standards.
AFB Creating Accessible Websites http:/www.afb.org/info/accessibility/creating-accessible-websites/
The American Foundation for the Blind removes barriers, creates solutions, and expands possibilities so people with vision loss can achieve their full potential.
AFB Web Accessibility Tips and Tricks http://www.afb.org/info/accessibility/creating-accessible-websites/tips-and-tricks/235
The American Foundation for the Blind removes barriers, creates solutions, and expands possibilities so people with vision loss can achieve their full potential. Here are seven useful and simple tips to make your webpages accessible.