Domain status is displayed in WHOIS lookup under “status” box.

OK OK This is the standard status for a domain, meaning it has no pending operations or prohibitions. A domain name is active, thus capable of hosting web pages, e-mail or name servers. You can ask your registrar to enact status restrictions, like ‘client Transfer Prohibited’, ‘client Delete Prohibited’ and ‘client Update Prohibited’, thereby preventing unauthorized transfers, deletions, or updates to your domain.
Pending delete (quarantine) Pending delete, RGP Redemption period, quarantine A domain is being quarantined for 30 days as it has either expired or been set to be deleted. During this period none of the Internet services (e.g. website, e-mail) linked to the quarantined domain name, is functional. RGP status will tell you the precise state a domain is in. If RGP is set to Redemption Period, it means domain was set to be deleted. If there is no RGP status, it means domain has expired.
Registrar prohibits delete client delete prohibited This status code is set by Registrar and tells domain’s registry to reject requests to delete your domain. If you want to transfer your domain, you must first contact your registrar and request that they remove this status code.
Registrar prohibits renew client Renew Prohibited This status code is set by Registrar and tells domain’s registry to reject requests to renew your domain. Often, this status indicates an issue with your domain that needs resolution. If so, you should contact your registrar to resolve the issue. If your domain does not have any issues, and you simply want to renew it, you must first contact your registrar and request that they remove this status code.
Registrar prohibits update client Update Prohibited This status code is set by Registrar and tells domain’s registry to reject requests to update the domain. This domain name status indicates that it is not possible to update the domain, which can help prevent unauthorized updates resulting from fraud. If you do want to transfer your domain, you must first contact your registrar and request that they remove this status code.
Domain deactivated by Registrar client Hold This status code is set by Registrar and tells domain’s Registry to not activate your domain in the DNS and as a consequence, it will not resolve. It is an uncommon status that is usually enacted during legal disputes, non-payment, or when your domain is subject to deletion. Often, this status indicates an issue with your domain that needs resolution. If so, you should contact your registrar to resolve the issue. If your domain does not have any issues, but you need it to resolve, you must first contact your registrar and request that they remove this status code.
Transfer prohibited server Transfer Prohibited This status code prevents your domain from being transferred from your current registrar to another. It is an uncommon status that is usually enacted during legal or other disputes, or at your request (locking a domain name).
Domain deactivated by Registry server Hold This status code is set by Registry. Your domain is not activated in the DNS. If you provided delegation information (name servers), this status may indicate an issue with your domain that needs resolution. If so, you should contact your the Registry to request more information.
Registry prohibits update server Update Prohibited This status code is set by Registry and locks your domain preventing it from being updated. It is usually set at your request (Registry Lock). This status may indicate an issue with your domain that needs resolution. If so, you should contact your registrar for more information or to resolve the issue. If your domain does not have any issues, and you simply want to update it, you must first contact your registrar and request that they work with the Registry to remove this status code.
Delete prohibited server Delete Prohibited This status code prevents your domain from being deleted. It is an uncommon status that is usually enacted during legal disputes, or at your request (Registry Lock). This status does not prevent domain name from expiration.
Domain in legal or domain dispute server Transfer Registrant Prohibited This status code is set by registry and prevents your domain from being transferred from your current registrant to another. It is an uncommon status that is usually enacted during legal or other disputes.
Inactive inactive, RGP add period This status code indicates that delegation information (name servers) has not been associated with your domain. Your domain is not activated in the DNS and will not resolve. If also RGP status Add Period is present domain name can be returned and de-registered.