Validation result 

                

            

        


    


    

        

            

                

                    
After validation

                    
Read the result like BIND would

                

                
checkzone.dev runs your pasted zone through named-checkzone, the validation utility shipped with BIND9. Treat the result as a pre-flight syntax check before loading a zone file or sending it to another DNS operator.

            


            

                

                    Checks
                    
Can BIND load this file?

                    
Catches malformed SOA records, missing NS records, invalid A or AAAA data, CNAME conflicts, bad MX or SRV fields, TTL syntax issues, and out-of-zone owner names.

                

                

                    Limits
                    
It is not a live DNS test

                    
A clean zone can still have broken delegation, missing registrar glue, unreachable nameservers, DNSSEC chain issues, or web and mail services that do not answer.

                

                

                    Workflow
                    
Validate the complete zone

                    
Paste the full file with $TTL and SOA records, increment the SOA serial for changes, review warnings, and run named-checkzone locally for private zones.