Changing a DNS record is delicate work. One wrong step can affect whether your website or email can be reached, so it is handled carefully.
Before any change
Be clear about what the record is for and what its correct value is. Some outside services give you a specific value that you must copy exactly as it is.
Safe steps
- Open the domain's DNS settings in the control panel.
- Add the new record, or change the existing one, with the exact value.
- Check the type, name and value before saving.
- Wait for the change to spread before judging the result.