Sougata2006/ValidateX ? reverse-engineered prompt

Build me a simple web app called ValidateX that checks whether an email address is real in real time. I want a clean home page where I can type an email and तुरंत see feedback, like valid, invalid, or likely fake, without needing to refresh the page. If the email is valid, show a few basic details from the check, and if something is wrong, show a clear friendly error message.

Please make it look polished and responsive on both desktop and mobile, with a smooth interface and a loading state while the check is running. Also include a separate About page that explains what the app does, how it works, and a little about the tech behind it.

Use plain HTML, CSS, and JavaScript, and connect it to the EmailValidation.io API for the checks. If you need current API details, look up the latest docs online first.