screen is cracked i can't go in my phone to look up for serial number

You may use a web browser to get Serial Number and IMEI Number. You cannot track using iMEI number. but you may need it so keep it handy

I removed my old iphone from the website before i recorded the serial number. I purchased a iPhone 7SE because my iPhone 7 would not boot up.

If i cannot recover recently deleted items from my apple id account, is there another way to get the serial number.