Quality Assurance of website

I am looking for a talented freelancer to provide quality assurance on my website. The website is a referral program, so I am looking for someone to conduct functionality testing to ensure all parts of the site are working properly. This is why I need manual testing, so that I have visibility into any user-facing issues or discrepancies that might occur. My goal is to make sure my website is running smoothly and efficiently, so I am counting on your expertise to make sure this happens.