.UK is the so-called country code Top-Level-Domain (ccTLD) of the United Kingdom. An .CO.UK domain is normally used by companies who are located in the UK or who have business relationships with the UK.

• Registry
• Periods
• API
• TLD specific
• Addons
• RegistrarOC

TLD	.co.uk
Registry	Nominet
Dispute Policy	Rules
Registrar	1api GmbH
WHOIS-Server	whois.nic.uk
WHOIS-Update	5 min.
Min. Characters	1
Max. Characters	63
Character Set	Letters and numbers Hyphens ("-"), however not at the beginning or directly in front of the TLD IDN: not allowed
Limitations	Registrant Contacts: Required: 1 / Maximum: 1 Admin Contacts: Required: 0 / Maximum: 1 Tech Contacts: Required: 0 / Maximum: 1 Billing Contacts: Required: 0 / Maximum: 1
{{{Possible Extensions}}}
IDN capable	No
Restore capable	Real-Time
Handle Updates	Supported
Registration System	Real-Time
Allowed number of NS	0 to 10
Registry Nameservercheck	No
Host IP-Addresses Type	IPv4 / IPv6
Hosts managed as	Object
Root Nameserver Update	random times a day
SEC DNS Interface	DS data interface
Transferclass	Push
Transfer Authcode required	No
Transfer Real-Time	Yes
Transfer Lock	Yes
Owner Change by	Update
Trade Real-Time	Yes
Transfer included	No
Trade ACK by	-
Trade NACK by	-

{{{Possible Extensions}}}
Registration Periods	1-10 years
Add Grace Period	0 days
Accounting Period	-1 week
Finalization Period	-1 day
Failure Period	89 days
Payment Period	-61 days
Deletion Restorable Period	1 day
Deletion Hold Period	0 days
Explicit Renewals	Yes
Renewal Periods	1-10 years

Domain Registration

Domains can be registered in Real-Time with the API AddDomain command.

command = AddDomain
domain  = (DOMAIN)

REQUIRED

ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 = (CONTACT)
billingcontact0 = (CONTACT)
nameserver0 = (NAMESERVER)
nameserver1 = (NAMESERVER)

OPTIONAL

auth = <TEXT> | <NULL>
transferlock = 0 | 1 | <NULL>
subuser = <TEXT> | <NULL>

Domain Transfer

The losing registrar has to inititate the transfer to push the domain to the gaining (new) registrar. The gaining registrar has to be aware of the planned domain transfer. Hence the transfer has to be requested with the API TransferDomain command.

command = TransferDomain
domain = (DOMAIN)

REQUIRED

action = REQUEST | APPROVE | DENY | CANCEL | USERTRANSFER
auth = <TEXT>

OPTIONAL

order = CREATE | REPLACE | UPDATE

subuser = <TEXT> | <NULL>
period = <PERIOD>
transferlock = 0 | 1 | <NULL>

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is a Deletion Restorable Period of 1 day.

command = DeleteDomain
domain = (DOMAIN)

REQUIRED

n/a

Restore Domain

Restores can be processed in realtime. A restore is possible within 1 day upon deletion. Please use the command RestoreDomain.

command = RestoreDomain
domain = (DOMAIN)

OPTIONAL

renewalmode = <NULL> | <TEXT>
subuser = <TEXT>

Ownerchange

An Ownerchange is free of charge and can be done with the API ModifyDomain command.

There are no specific parameters available

The following overview shows you all available Domain Addons which can be used for this special kind of TLD. It also shows the respective API parameters which are required to activate the Domain Addons:

Addon Class	Parameter to (de)activate *1)	Renewal term *2)	Affected Parameters *3)
Proxy (WHOISTRUSTEE_UK)	X-ACCEPT-WHOISTRUSTEE-TAC = 0 | 1	1 month	All Contacts

*1) Parameter to (de)activate: When accessing our backend through the API, you can either activate the addon with X-ACCEPT-WHOISTRUSTEE-TAC=1 or deactivate it with
      X-ACCEPT-WHOISTRUSTEE-TAC=0

*2) Renewal Term: Is the minimum renewal term of the "Addon Class"

*3) If you are using a "Proxy" Domain Addon normally all contact handles are affected (registrant, admin, tech, and billing contact).
      

Restore Process

To restore a domain as a RegistrarOC customer, you simply have to execute the RestoreDomain command. HEXONET directly forwards the restore request to the registry, which performs the restore in real-time. As soon as the restore is complete, the domain will get assigned to your account with the original domain data.

Please do not initiate a restore directly at the registry (e.g. using the registrar webinterface). All restore operations must be performed through our system.