Thanks again for your comments. I also own a SaaS related to SEO and I can confirm what you see. Some bots request URLs that don't exist by trying to guess them

Thanks again for your comments. I also own a SaaS related to SEO and I can confirm what you see. Some bots request URLs that don't exist by trying to guess them. One the other hand, I also often see errors in links where the HTML contains for example <a href="www.example.com/another-page"> and is resolved as "https://www.example.com/www.example.com/another-page" https://www.example.com/www.example.com/another-page". FYI, note that SingleFile is supposed to resolve all the links and that this should be reliable since it delegates this resolution to the browser.