This research is a case study, but it has the possibility to make Web Accessibility guidelines for the hearing-impaired. Web Content Accessibility Guidelines by W3C suggests "Provide non-text equivalents of text“. We suppose this guideline is applicable to the hearing-impaired people. Our research expanded W3C's guidelines to specify that the "non text equivalents" convey a significant meaning about the contents accurately. We performed experiments and considered how different web designs effected WEB accessibility of people with different disabilities. We recorded the operation flow and the length of stay on each page as well as eye tracking and mouse movement. We found some differences between non-impaired and hearing-impaired people in this experiment. We have considered that two user types exist Text-oriented for the non-impaired vs. picture-oriented for the hearing-impaired. We formed hypothetic Web Accessibility Guidelines for the hearing-impaired people based on this case study.