Is your content in the HTML?
Assistants read what your server sends. They do not run your app and wait for it to fill the page in. A site that looks perfect in a browser can be a blank document to them, and this is the single most common reason a real product is invisible.
Free, instant, no account. We keep the domain and its grade to show what has been checked, and nothing that identifies you.
Being readable is step one. Being the answer is the other one.
This site publishes one paid answer per category, openly bought, in a format assistants read. We count how often they read each board and print the number on it. A dollar puts you on one.