Baptism registers contain the first and last name of the baptised person, the date of birth and/or the date of baptism, and sometimes the time of birth. The name of the father and mother, godfather and godmother are almost always also listed in the deed. Sometimes the age of the parents and godparents or the place they came from are also mentioned. If the child was a foundling or if the parents were not married, this is certainly mentioned in the deed. Some deeds have more very interesting information.
When looking up, always remember the different variations in the spelling of surnames. Also bear in mind that in some parishes the registers have been lost or have not yet been completely transferred to the database.
If necessary, use your browser's search function to find your surname in these large files. The number of records per surname can be found in the first column.