An organization is seeking a qualified vendor to undertake a comprehensive website redesign using a content management system (CMS). The project requires the delivery of a modern, visually appealing, and user-friendly web experience that addresses the needs of both desktop and mobile users.

Key objectives include ensuring full mobile responsiveness and compliance with accessibility standards, specifically WCAG 2.1 AA. The selected vendor will be responsible for creating wireframes for both desktop and mobile versions of all site pages, conducting cross-browser compatibility testing (including Chrome, Firefox, Safari, and Edge), and performing thorough mobile responsiveness testing on iOS and Android devices. In addition, the vendor must conduct accessibility testing and provide certification of accessibility compliance.

The project also emphasizes the importance of site performance and strong search engine optimization (SEO). This includes a comprehensive SEO audit and implementation of on-page optimization strategies to improve the site's visibility and effectiveness. Vendors with proven experience in CMS-based web redesign, accessibility compliance, and SEO are encouraged to respond.