This extra 30-day period - redemption period - extends the time available to renew expired domain names by 30 days. However, all names that enter the redemption period are removed from the zone files in the global DNS, as a result, any Web site or email services associated with the domain name gone into redemption period will stop working and would appear offline.
Pending Delete Phase
In addition, after the 30-day redemption period there is a 5-day Pending Delete Phase. When a domain is in Pending Delete Phase, no one is allowed to renew the domain and it cannot be yet registered because its still not returned to the public domain pool. After the 5-day Pending Delete Phase the Registry will release the domain name back into the public pool of available domain names enabling fresh registration. At this point, if the domain is registered by someone else, you will not ble able to recover it.
Renew domain before redemption phase
It is strongly recommended that you renew your domain registration in time before the domain name is placed in redemption lock because once its placed in redemption, the zone files of such domain gets automatically removed from the Domain Name Service and associated website and email etc services will cease to work.