Match frequency to acceptable data loss
A brochure website may tolerate a weekly backup. A busy store may require daily or more frequent database protection.
Keep multiple restore points
One backup is not enough because corruption or malware can remain unnoticed. Retention gives you choices when selecting a clean restore point.
Test restores
A backup should be considered reliable only after a restore process has been tested. Schedule periodic tests and document the recovery steps.
Good practice: keep at least one isolated copy outside the primary hosting account.