There are so many suffixes and different domains belong to different registries, so different rules can arise.
Note that some domain names do not have renewal period and redemption period, such as. Cm,. Im expired directly deleted.
Some domain names do not have renewal period, but have redemption period, so the system design of this site, as long as expired domain names, there will be restore button.
If you are worried about some good, expensive domain name forgot to renew, and did not pay attention to the mail, you can set the automatic renewal mode.
If the account balance is sufficient, the system will automatically renew the domain name at the beginning of the month.