Hi,
The information could include town, date of certificate, #, page, name, address, date of death, date of birth, age, cause of death, name of mother and father, relative if any offering info and more. It depends on the date and town, not all kept same records. You cal also find mistakes, for me is better to look at the books in Family Search and compare with the previous and next certificate. The cause of death can be copied from the doctors record, or the recorder interpretation and spelling or can be whatever information he was given, if any. Anyway, it would be nice if you can get your own copy for your records. Good Luck.