Moving a web page project from legacy Express to the new Express

Will the URL of my web page change if I move it from legacy Express to the new Express? I logged in to make a change to my web page and I received a message that I can no longer edit it. The only way is to move it to the new Express. I am concerned that the URL address will change. Can anyone tell me if it will stay the same? I have printed material that includes a QR code leading to the link. Also, will my web page be exactly the same as it was? I hope my web page will not get messed up if I move it over. TIA!