I'm brand new to SEO, and I'm doing it for my own website and one of my relatives websites, I've been outreaching to many websites asking for guest posts, and showing them a tool we built asking if they can link back to our tool. On average, what is the ratio or amount of site owners who will end up linking for every 100 cold emails I send asking for links? And please drop down any other tips that might help me with link building, this is my website and this is the tool I built for my relatives website