Develop Informational Business Website

I need a clean, fast-loading website whose sole focus is to present clear, trustworthy information about my business to the general public. The site should be easy for first-time visitors to navigate, look professional across desktop and mobile, and leave room for future expansion such as a blog or service pages.

Core requirements
• Five to seven main pages (Home, About, Contact, plus three-four content pages I will outline).
• Modern, responsive design that works flawlessly on phones, tablets, and desktops.
• Simple CMS back-end (WordPress, Webflow, or a similarly user-friendly platform) so I can update text and images myself after launch.
• Basic on-page SEO setup: page titles, meta descriptions, and clean URL structure.
• Google Analytics integration so I can track visitor behaviour from day one.
• Delivery of all source files, login credentials, and a quick hand-off tutorial.

Please let me know your preferred stack, examples of past informational sites you have launched, and an estimated timeline for design, development, and final revisions.