Common record types
- A and AAAA records point names to server addresses.
- CNAME records alias one name to another.
- MX records route email, while TXT records often verify ownership or email security.
Why changes need care
- Replacing nameservers can replace the entire DNS zone.
- Deleting an email record while fixing a website can stop mail.
- Changes may take time to appear because resolvers cache old answers.
Work safely
- Export or screenshot current records before editing.
- Change only the record required by documented instructions.
- Test website, email, and important services after the change.
Stop guessing when the problem keeps coming back
Ask for help before changing nameservers or when website and email records are mixed across several providers.