The reason I wanted to know about death certificates was that I'd tried all avenues to try and find two baptisms, I hoped that the place of birth and date of birth might have been on them for that period but it seems unlikely.

Death certificates do sometimes show a persons' religion, but do not include dates for Baptism or Christening.
On the death certificates, I have in my posession, for those dates, in Australia you have
1 Name of deceased
2 Date & place of death
3 Sex, age & occupation of deceased
4 Cause of death & length of illness
5 Medical Attendant and when last seen
6 Father's name & occupation; Mother's maiden name
7 Informant - the accuracy of every registration depends on this person!
8 Children of deceased (usually names & ages are listed, but sometimes only the number of males/females is listed)
9 Date & place of burial, and Undertaker
10 Minister, religion, and names of witnesses
11 Birthplace and length of time in NSW (if applicable)
12 Marriage place, age at marriage, and Spouse name
13 Date & place of Registration
I don't know where you are from but I've seen certificates from other countries and they are all pretty much the same. How much is filled in depends on the knowledge of the informant. Sometimes if there is no family the informant is a doctor or nurse.

Here's one from Sussex 1871

Someone might be able to find the baptisms for you if you post the names, birth dates and place of the two people you are looking for.