.lk Domain Registration

Sri Lanka Domain - .lk Domain Registration

Top Selling Sri Lankan Domains

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.lk Registry logo

Registration Pricing

  • 1 Year 37.00 USD
  • 2 Years 72.52 USD
  • 5 Years 175.75 USD
  • 10 Years 333.00 USD

Application Fee

Registration Time Frame

1 Week


Requirements

No Details Are Individual Sri Lanka .lk registrations allowed?

Yes Details Company or legal entities registrations allowed for Sri Lanka .lk?

Yes Details Are there requirements, documents, or information needed for Sri Lanka .lk?

No Details .lk Trustee / Proxy service offered? Fees?

Yes Details Are some .lk domain names restricted?

No Details Does .lk domain have a special use?

Yes Details Other information I need to know about .lk?

No Details Are there any additional fees for .lk?

No Details Do I need a trademark/brand name to register .lk?

No Details WHOIS Privacy service available?

Trustee / Proxy service offered? Fees? No Details


.lk Domain FAQ

.lk General FAQ
The Democratic Socialist Republic of Sri Lanka is a country located off the coast of the Indian Subcontinent. It is a strategic naval link between West Asia and Southeast Asia and it has an estimated population of approximately 20 million people. The official languages are Sinhala and Tamil.

The economy of Sri Lanka is based largely on free market structure, and it is supported by tourism, tea export, копирайт, 101домен clothing and agriculture. There is also a significant contribution to foreign exchange through overseas employment, particularly in the Middle East.

Why should I buy a .lk domain name?
Sri Lanka has a growing economy, and the influx of new business into the area provides an opportunity to capitalize on the needs of the emerging consumer and копирайт, 101домен commercial markets. The .lk extension is ideal for companies based in the region to help present a professional image and show your commitment to the region to local customers.
What name can I register?
Names should not include trademarks of other parties or words which are not permitted in business names, unless the applicant is legally entitled to use such words. Names which are offensive, obscene, or may confuse or grossly mislead the public, should not be selected.

The following section describes the names that will not be allowed in the registry.

Any name which in the opinion of the Registrar suggests or is calculated to suggest, the patronage of the President or connection with the Government or any Government Department, Municipality or other Local Authority or with any society or body incorporated by an Act of Parliament, unless the applicant provides evidence that use of such name has been approved by the relevant Government Authority.

Top level domains (eg. com.lk, co.lk, org.lk, or.lk, net.lk, ne.lk, etc.. ) and proposed new Global Top Level Domains.
Towns, provinces and abbreviations there of. (eg. colombo.lk, kandy.lk, western.lk, cmb.lk, etc..)
Names that may be offensive, obscene, or grossly misleading to any accepted religion, race, culture or tradition of Sri Lanka.

Generic names. Some копирайт, 101домен names considered generic are:
Professions (eg. lawyer.lk, doctor.lk, etc..)
Internet Services (eg. internet, mail.lk, www.lk, web.lk, ftp.lk, etc..)

Other generic terms...
They are not registered under .lk, but may be registered under open second levels or to organizations,or associations which represent the relevant industry as a whole. However,any generic name starts with "e " or "e-" could be accepted.
Eg: e 'generic'.lk or e-'generic'.lk

What is the registration term allowed for .lk domain names?
.lk domain names can be registered for копирайт, 101домен 1 to 10 years at a time.
Can anyone register a .lk domain name?
копирайт, 101домен
How long does it take to register my .lk domain name?
During general availability it takes approximately 1 копирайт, 101домен Week to register your .lk domain name.
What are the characters and valid character lengths for .lk domain names?
Domain Names must:
  • have minimum of 4 and a maximum of 63 characters;
  • begin with a letter or a number and end with a letter or a number;
  • use the English character set and may contain letters (i.e., a-z, A-Z),numbers (i.e. 0-9) and dashes (-) or a combination of these;
  • neither begin with, nor копирайт, 101домен end with a dash;
  • not contain a dash in the third and fourth positions (e.g. www.ab- -cd.lk); and
  • not include a space (e.g. www.ab cd.lk).
Trustee Service for .lk

Trustee Service helps you satisfy most local presence requirements when there are restrictions on registering a domain name.

Trustee Service Is копирайт, 101домен Available for this extension

Trustee service is not available for this extension

How do I host my .lk domain name?
offers hosting and email service for .lk . You can order hosting, email service and SSL certificates at checkout or you can contact sales or view our Web Hosting Services.копирайт, 101домен
How do I transfer my .lk domain name?

To transfer your .lk domain name to , submit your domain name transfer or contact sales.

To transfer your .lk domain копирайт, 101домен name out of , submit your domain name transfer or contact sales.

Can I transfer out my domain if I’m using your Trustee Service?
Trustee service is non-transferable. If you are using our Trustee Service, you копирайт, 101домен must update ownership according to .lk requirements before transfer out can be started.
Can I hide my registration information (Private WHOIS)
No. At present the .lk domain zone does not provide means to hide the information копирайт, 101домен of the domain owner. All information (name, address, email, etc.) will be displayed in WHOIS.
Can I register my .lk domain name in different languages (Internationalized Domain Name)?

No, .lk does not support Internationalized Domain Names

No, .lk does not support Internationalized Domain Names. You can register full IDNs for

Yes, You can register копирайт, 101домен IDNs in the following languages

Grace period for .lk domain name?

Is there a grace period for renewal of my .lk domain name?
Grace period is 90 days. You can renew your .lk domain for 90 days after expiration without incurring an additional fee, however your domain will no longer resolve on the day it expires. 

копирайт, 101домен Is there a redemption period for .lk domain names?
.lk does not have a redemption period; once the domain is expired it can not be restored. There may be a time between when the domain expires and when the domain can be registered again in case you do not pay by the renewal date, your site will be inaccessible during this time so it is very important that you renew this extension before the renewal date.

Who is the registry that manages .lk domain names?
You may visit them here: LK Domain Registry.копирайт, 101домен
.lk Domains Dispute & Policy
All domain name registrations are subject to our registration agreement and dispute resolution policy. ICANN has adopted a universal Dispute Policy Resolution Policy that clearly states that all disputes will be handled legally with respect to the rules and regulations of the .LK extension and all applicable laws of Sri Lanka. For more information about the Dispute Policy, please contact 101Domain. In the event that the Domain Name is registered, you agree to be bound by the Dispute Policy that is incorporated herein by reference and made a part hereof. For more information about this policy, please contact 101Domain. In disputes arising between the Domain Applicant and the Registrar in connection with conformity to the Rules and Procedures the opinion of the Registrar, or if requested by the Registrar, that of the Registry shall be decisive. In case of disputes arising between the Registrar and the Registry the opinion of the Registry shall be determinant.

The most recent source for this dispute policy can be found at: www.icann.org/en/help/dndr/udrp/policy

Uniform Domain Name Dispute Resolution Policy
(As Approved by ICANN on October 24, 1999)

1. Purpose.
This Uniform Domain Name Dispute Resolution Policy (the "Policy") has been adopted by the Internet Corporation for Assigned Names and Numbers ("ICANN"), is incorporated by reference into your Registration Agreement, and sets forth the terms and conditions in connection with a dispute between you and any party other than us (the .lk registrar) over the registration and use of an Internet domain name registered by you. Proceedings under Paragraph 4 of this Policy will be conducted according to the Rules for Uniform Domain Name Dispute Resolution Policy (the "Rules of Procedure"), which are available at www.icann.org/udrp/udrp-rules-24oct99.htm, and the selected administrative-dispute-resolution service provider's supplemental rules.
2. Your Representations.
By applying to register a domain name, or by asking us to maintain or renew a domain name registration, you hereby represent and warrant to us that (a) the statements that you made in your Registration Agreement are complete and accurate; (b) to your knowledge, the registration of the domain name will not infringe upon or otherwise violate the rights of any third party; (c) you are not registering the domain name for an unlawful purpose; and (d) you will not knowingly use the domain name in violation of any applicable laws or regulations. It is your responsibility to determine whether your domain name registration infringes or violates someone else's rights.
3. Cancellations, Transfers, and Changes.
We will cancel, transfer or otherwise make changes to domain name registrations under the following circumstances:
a. subject to the provisions of Paragraph 8, our receipt of written or appropriate electronic instructions from you or your authorized agent to take such action;
b. our receipt of an order from a court or arbitral tribunal, in each case of competent jurisdiction, requiring such action; and/or
c. our receipt of a decision of an Administrative Panel requiring such action in any administrative proceeding to which you were a party and which was conducted under this Policy or a later version of this Policy adopted by ICANN or the .lk Registry. (See Paragraph 4(i) and (k) below.)
We may also cancel, transfer or otherwise make changes to a domain name registration in accordance with the terms of your Registration Agreement or other legal requirements.
4. Mandatory Administrative Proceeding.
This Paragraph sets forth the type of disputes for which you are required to submit to a mandatory administrative proceeding. These proceedings will be conducted before one of the administrative-dispute-resolution service providers listed at www.icann.org/en/dndr/udrp/approved-providers.htm (each, a "Provider").
a. Applicable Disputes. You are required to submit to a mandatory administrative proceeding in the event that a third party (a "complainant") asserts to the applicable Provider, in compliance with the Rules of Procedure, that
(i) your domain name is identical or confusingly similar to a trademark or service mark in which the complainant has rights; and
(ii) you have no rights or legitimate interests in respect of the domain name; and
(iii) your domain name has been registered and is being used in bad faith.
In the administrative proceeding, the complainant must prove that each of these three elements are present.
b. Evidence of Registration and Use in Bad Faith. For the purposes of Paragraph 4(a)(iii), the following circumstances, in particular but without limitation, if found by the Panel to be present, shall be evidence of the registration and use of a domain name in bad faith:
(i) circumstances indicating that you have registered or you have acquired the domain name primarily for the purpose of selling, renting, or otherwise transferring the domain name registration to the complainant who is the owner of the trademark or service mark or to a competitor of that complainant, for valuable consideration in excess of your documented out-of-pocket costs directly related to the domain name; or
(ii) you have registered the domain name in order to prevent the owner of the trademark or service mark from reflecting the mark in a corresponding domain name, provided that you have engaged in a pattern of such conduct; or
(iii) you have registered the domain name primarily for the purpose of disrupting the business of a competitor; or
(iv) by using the domain name, you have intentionally attempted to attract, for commercial gain, Internet users to your web site or other on-line location, by creating a likelihood of confusion with the complainant's mark as to the source, sponsorship, affiliation, or endorsement of your web site or location or of a product or service on your web site or location.
c. How to Demonstrate Your Rights to and Legitimate Interests in the Domain Name in Responding to a Complaint. When you receive a complaint, you should refer to Paragraph 5 of the Rules of Procedure in determining how your response should be копирайт, 101домен prepared. Any of the following circumstances, in particular but without limitation, if found by the Panel to be proved based on its evaluation of all evidence presented, shall demonstrate your rights or legitimate interests to the domain name for purposes of Paragraph 4(a)(ii):
(i) before any notice to you of the dispute, your use of, or demonstrable preparations to use, the domain name or a name corresponding to the domain name in connection with a bona fide offering of goods or services; or
(ii) you (as an individual, business, or other organization) have been commonly known by the domain name, even if you have acquired no trademark or service mark rights; or
(iii) you are making a legitimate noncommercial or fair use of the domain name, without intent for commercial gain to misleadingly divert consumers or to tarnish the trademark or service mark at issue.
d. Selection of Provider. The complainant shall select the Provider from among those approved by ICANN by submitting the complaint to that Provider. The selected Provider will administer the proceeding, except in cases of consolidation as described in Paragraph 4(f).
e. Initiation of Proceeding and Process and Appointment of Administrative Panel. The Rules of Procedure state the process for initiating and conducting a proceeding and for appointing the panel that will decide the dispute (the "Administrative Panel").
f. Consolidation. In the event of multiple disputes between you and a complainant, either you or the complainant may petition to consolidate the disputes before a single Administrative Panel. This petition shall be made to the first Administrative Panel appointed to hear a pending dispute between the parties. This Administrative Panel may consolidate before it any or all such disputes in its sole discretion, provided that the disputes being consolidated are governed by this Policy or a later version of this Policy adopted by ICANN or the .lk Registry.
g. Fees. All fees charged by a Provider in connection with any dispute before an Administrative Panel pursuant to this Policy shall be paid by the complainant, except in cases where you elect to expand the Administrative Panel from one to three panelists as provided in Paragraph 5(b)(iv) of the Rules of Procedure, in which case all fees will be split evenly by you and the complainant.
h. Our Involvement in Administrative Proceedings. We do not, and will not, participate in the administration or conduct of any proceeding before an Administrative Panel. In addition, we will not be liable as a result of any decisions rendered by the Administrative Panel.
i. Remedies. The remedies available to a complainant pursuant to any proceeding before an Administrative Panel shall be limited to requiring the cancellation of your domain name or the transfer of your domain name registration to the complainant.
j. Notification and Publication. The Provider shall notify us of any decision made by an Administrative Panel with respect to a domain name you have registered with us. All decisions under this Policy will be published in full over the Internet, except when an Administrative Panel determines in an exceptional case to redact portions of its decision.
k. Availability of Court Proceedings. The mandatory administrative proceeding requirements set forth in Paragraph 4 shall not prevent either you or the complainant from submitting the dispute to a court of competent jurisdiction for independent resolution before such mandatory administrative proceeding is commenced or after such proceeding is concluded. If an Administrative Panel decides that your domain name registration should be canceled or transferred, we will wait ten (10) business days (as observed in the location of our principal office) after we are informed by the applicable Provider of the Administrative Panel's decision before implementing that decision. We will then implement the decision unless we have received from you during that ten (10) business day period official documentation (such as a copy of a complaint, file-stamped by the clerk of the court) that you have commenced a lawsuit against the complainant in a jurisdiction to which the complainant has submitted under Paragraph 3(b)(xiii) of the Rules of Procedure. (In general, that jurisdiction is either the location of our principal office or of your address as shown in our Whois database. See Paragraphs 1 and 3(b)(xiii) of the Rules of Procedure for details.) If we receive such documentation within the ten (10) business day period, we will not implement the Administrative Panel's decision, and we will take no further action, until we receive (i) evidence satisfactory to us of a resolution between the parties; (ii) evidence satisfactory to us that your lawsuit has been dismissed or withdrawn; or (iii) a copy of an order from such court dismissing your lawsuit or ordering that you do not have the right to continue to use your domain name.
5. All Other Disputes and Litigation.
All other disputes between you and any party other than us regarding your domain name registration that are not brought pursuant to the mandatory administrative proceeding provisions of Paragraph 4 shall be resolved between you and such other party through any court, arbitration or other proceeding that may be available.
6. Our Involvement in Disputes.
We will not participate in any way in any dispute between you and any party other than us regarding the registration and use of your domain name. You shall not name us as a party or otherwise include us in any such proceeding. In the event that we are named as a party in any such proceeding, we reserve the right to raise any and all defenses deemed appropriate, and to take any other action necessary to defend ourselves.
7. Maintaining the Status Quo.
We will not cancel, transfer, activate, deactivate, or otherwise change the status of any domain name registration under this Policy except as provided in Paragraph 3 above.
8. Transfers During a Dispute.
a. Transfers of a Domain Name to a New Holder. You may not transfer your domain name registration to another holder (i) during a pending administrative proceeding brought pursuant to Paragraph 4 or for a period of fifteen (15) business days (as observed in the location of our principal place of business) after such proceeding is concluded; or (ii) during a pending court proceeding or arbitration commenced regarding your domain name unless the party to whom the domain name registration is being transferred agrees, in writing, to be bound by the decision of the court or arbitrator. We reserve the right to cancel any transfer of a domain name registration to another holder that is made in violation of this subparagraph.
b. Changing Registrars. You may not transfer your domain name registration to another registrar during a pending administrative proceeding brought pursuant to Paragraph 4 or for a period of fifteen (15) business days (as observed in the location of our principal place of business) after such proceeding is concluded. You may transfer administration of your domain name registration to another registrar during a pending court action or arbitration, provided that the domain name you have registered with us shall continue to be subject to the proceedings commenced against you in accordance with the terms of this Policy. In the event that you transfer a domain name registration to us during the pendency of a court action or arbitration, such dispute shall remain subject to the domain name dispute policy of the registrar from which the domain name registration was transferred.
9. Policy Modifications.
We reserve the right to modify this Policy at any time with the permission of ICANN. We will post our revised Policy at least thirty (30) calendar days before it becomes effective. Unless this Policy has already been invoked by the submission of a complaint to a Provider, in which event the version of the Policy in effect at the time it was invoked will apply to you until the dispute is over, all such changes will be binding upon you with respect to any domain name registration dispute, whether the dispute arose before, on or after the effective date of our change. In the event that you object to a change in this Policy, your sole remedy is to cancel your domain name registration with us, provided that you will not be entitled to a refund of any fees you paid to us. The revised Policy will apply to you until you cancel your domain name registration.
.lk Glossary of Technical Terms

A record
The representation of an IPv4 address in the DNS system.

AAAA record
The representation of an IPv6 address in the DNS system.

A-label
The ASCII-compatible encoded (ACE) representation of an internationalized domain name, i.e. how it is transmitted internally within the DNS protocol. A-labels always commence the with the prefix "xn--". Contrast with U-label.

APIPA
A subcategory of private IP address. See Private IP Addresses.

AREG
A subset of IRIS for performing registration lookups on IP addresses.

.ARPA Originally a reference to the US Government agency that managed some of the Internet’s initial development, now a top-level domain used solely for machine-readable use by computers for certain protocols — such as for reverse IP address lookups, and ENUM. The domain is not designed for general registrations. IANA manages .ARPA in conjunction with the Internet Architecture Board.

ASCII (American Standard Code for Information Interchange)
The standard for transmitting English (or "Latin") letters over the Internet. DNS was originally limited to only Latin characters because it uses ASCII as its encoding format, although this has been expanded using Internationalised Domain Names for Applications.

Authoritative Name Server
a domain name server configured to host the official record of the contents of a DNS zone. Each Sri Lanka ..lkdomain name must have a set of these so computers on the Internet can find out the contents of that domain. The set of authoritative name servers for any given domain must be configured as NS records in the parent domain.

Autonomous System Number (AS number, ASN)
A number used by Internet routing protocols to uniquely identify the routing policy of a particular network operator.

Autonomous System Number (AS number, ASN)
A number used by Internet routing protocols to uniquely identify the routing policy of a particular network operator. They can be considered to be similar to a ‘postcode’ used for physical mail. They are allocated to network operators via regional Internet registries.

Caching Resolver
the combination of a recursive name server and a caching name server.

Country-code Name Supporting Organisation (ccNSO)
A component of ICANN’s policy development forums (a "constituency") that is responsible for discussing and developing policy relating to how ccTLDs are delegated. .lk Sri Lanka Nic.

Country-code top-level domain (ccTLD)
A class of top-level domains only assignable to represent countries listed in the ISO 3166-1 standard. At present these are two-letter codes like .lk etc., however in the future it is expected there will be non-Latin equivalents also available. Much of the policy-making for individual country-code top-level domains is vested with a local sponsoring organisation, as opposed to other top-level domains where ICANN sets the policy. It is a requirement that ccTLDs are operated within the country they are designated so appropriate local laws, governments etc. have a say in how the domain is run

Cross-Registry Information Service Protocol (CRISP)
The name of the working group at the IETF that developed the Internet Registry Information Service (IRIS), a next-generation WHOIS protocol replacement.

DCHK
A subset of IRIS for performing checks on whether a domain name is available to register. It is more lightweight, and has less privacy implications, than DREG as it does not transmit registration data other than simple availability.

delegation
Any transfer of responsibility to another entity. In the domain name system, one name server can provide pointers to more useful name servers for a given request by returning NS records. On an administrative level, sub-domains are delegated to other entities. IANA also delegates IP address blocks to regional Internet registries.

DNSSEC
A technology that can be added to the Domain Name System to verify the authenticity of its data. The works by adding verifiable chains of trust that can be validated to the domain name system.

DNS zone
a section of the Domain Name System name space. By default, the Root Zone contains all domain names, however in practice sections of this are delegated into smaller zones in a hierarchical fashion. For example, the .lk zone would refer to the portion of the DNS delegated that ends in .lk.

Domain Name
A unique identifier with a set of properties attached to it so that computers can perform conversions. A typical domain name is "icann.org". Most commonly the property attached is an IP address, like "208.77.188.103", so that computers can convert the domain name into an IP address. However the DNS is used for many other purposes. The domain name may also be a delegation, which transfers responsibility of all sub-domains within that domain to another entity. domain name label a constituent part of a domain name. The labels of domain names are connected by dots. For example, "www.iana.org" contains three labels — "www", "iana" and "org". For internationalised domain names, the labels may be referred to as A-labels and U-labels.

Domain Name Registrar for .lk
An entity offering domain name registration services, as an agent between registrants and registries. Usually multiple registrars exist who compete with each other, and are accredited. For most generic top-level domains, domain name registrars are accredited by ICANN.

Domain Name Registry .lk, Sri Lanka
A registry tasked with managing the contents of a DNS zone, by giving registrations of sub-domains to registrants.

Domain Name Server
A general term for a system on the Internet that answers requests to convert domain names into something else. These can be subdivided into authoritative name servers, which store the database for a particular DNS zone; as well as recursive name servers and caching name servers.

Domain Name System (DNS)
The global hierarchical system of domain names. A global distributed database contains the information to perform the domain name conversations, and the most central part of that database, known as the root zone is coordinated by IANA.

dot
common way of referring to a specific top-level domain. For example "dot .lk" refers to the "INFO" top-level domain. Written in text as ".lk".

Extensible Provisioning Protocol (EPP)
A protocol used for electronic communication between a registrar and a registry for provisioning domain names.

first come, first served (FCFS)
IANA registries are administered on a "first come, first served" basis.

fully-qualified domain name (FQDN)
A complete domain name including all its components, i.e. "www.icann.org" as opposed to "www".

GAC Principles
A document, formally known as the Principles for the Delegation and Administration of ccTLDs. This document was developed by the ICANN Governmental Advisory Committee and documents a set of principles agreed by governments on how ccTLDs should be delegated and run.

Generic top-level domains (gTLDs)
A class of top-level domains that are used for general purposes, where ICANN has a strong role in coordination (as opposed to country-code top-level domains, which are managed locally).

Glue Record
An explicit notation of the IP address of a name server, placed in a zone outside of the zone that would ordinarily contain that information.. All name servers are in-bailiwick of the Root Zone, therefore glue records is required for all name servers listed there. Also referred to as just "glue".

Hints File
A file stored in DNS software (i.e. recursive name servers) that tells it where the DNS root servers are located.

Hostname
The name of a computer. Typically the left-most part of a fully-qualified domain name.

IANA
See Internet Assigned Numbers Authority.

IANA Considerations
A component of RFCs that refer to any work required by IANA to maintain registries for a specific protocol.

IANA Contract
The contract between ICANN and the US Government that governs how various IANA functions are performed.

IANA Staff
see Internet Assigned Numbers Authority.

ICANN
See Internet Corporation for Assigned Names and Numbers

Internationalised domain name (IDN)
A domain name that uses characters outside the 37 characters allowed by the "LDH rule", using a system known as IDNA. This allows for domain names in non-Latin scripts, such as Arabic, Japanese or Cyrillic.

Internet Architecture Board (IAB)
The oversight body of the IETF, responsible for overall strategic direction of Internet standardisation efforts. The IAB works with ICANN on how the IANA protocol parameter registries should be managed. The IAB is an activity of the Internet Society, a non-profit organisation.

Internet Assigned Numbers Authority (IANA)
A department of ICANN tasked with providing various Internet coordination functions, primarily those described in a contract between ICANN and the US Government. The functions relate to ensuring globally-unique protocol parameter assignment, including management of the root of the Domain Name System and IP Address Space. ICANN staff within this department is often referred to as "IANA Staff".

Internet Coordination Policy (ICP)
A series of documents created by ICANN between 1999 and 2000 describing management procedures.

Internet Engineering Steering Group (IESG)
The committee of area experts of the IETF’s areas of work, that acts as its board of management.

Internet Engineering Task Force (IETF)
The key Internet standardisation forum. The standards developed within the IETF are published as RFCs.

.INT A top-level domain devoted solely to international treaty organisations that have independent legal personality. Such organisations are not governed by the laws of any specific country, rather by mutual agreement between multiple countries. IANA maintains the domain registry for this domain.

Internet копирайт, 101домен Protocol (IP)
The fundamental protocol that is used to transmit information over the Internet. Data transmitted over the Internet is transmitted using the Internet Protocol, usually in conjunction with a more specialised protocol. Computers are uniquely identified on the Internet using an IP Address.

Internet Registry Information Service (IRIS)
A sophisticated protocol for looking up registration data. It is designed to supplant the WHOIS protocol.

Internet Telephony Administrative Domain (ITAD)
A unique numbering system used by Telephone Routing over Internet Protocol (TRIP) to label phone services within an organisation.

Interim Trust Anchor Repository (ITAR)
A proposed IANA service whereby the trust anchors for top-level domains can be listed separately from the DNS root zone. This is a temporary measure due to the inability to use DNSSEC to sign the root zone.

IP address
A unique identifier for a device on the Internet. The identifier is used to accurately route Internet traffic to that device. IP addresses must be unique on the global Internet.

IPv4
Internet Protocol version 4. Refers to the version of Internet protocol that supports 32-bit IP addresses.

IPv6
Internet Protocol version 6. Refers to the version of Internet protocol that supports 128-bit IP addresses.

NS record
a type of record in a DNS zone that signifies part of that zone is delegated to a different set of authoritative name servers.

Parent domain
the domain above a domain in the DNS hierarchy. For all top-level domains, the Root Zone is the parent domain. The Root Zone has no parent domain as it is as the top of the hierarchy. Opposite of sub-domain.

Private enterprise numbers (PENs)
A unique numbering system used by several different Internet protocols (such as SNMP and LDAP) that use Abstract Notation Syntax One (ASN.1).

PTR record
The representation of a IP address to domain name mapping in the DNS system.

Recursive Name Server
A domain name server configured to perform DNS lookups on behalf of other computers.

Redelegation
The transfer of a delegation from one entity to another. Most commonly used to refer to the redelegation process used for top-level domains.

Redelegation process
A special type of root zone change where there is a significant change involving the transfer of operations of a top-level domain to a new entity.

Regional Internet Registry (RIR)
A registry responsible for allocation of IP address resources within a particular region.

Registrant
The entity that has acquired the right to use an Internet resource. Usually this is via some form of revocable grant given by a registrar to list their registration in a registry.

Registrar .lk
An entity that can act on requests from a registrant in making changes in a registry. Usually the registrar is the same entity that operates a registry, although for domain names this role is often split to allow for competition between multiple registrars who offer different levels of support.

Registry .lk Sri Lanka
The authoritative record of registrations for a particular set of data. Most often used to refer to domain name registry, but all protocol parameters that IANA maintains are also registries.

Registry Operator for .lk .lk Sri Lanka
The entity that runs a registry.

Reverse IP
A method of translating an IP address into a domain name, so-called as it is the opposite of a typical lookup that converts a domain name to an IP address.

RFCs
A series of Internet engineering documents describing Internet standards, as well as discussion papers, informational memorandums and best practices. Internet standards that are published in an RFC originate from the IETF. The RFC series is published by the RFC Editor.

Root Servers
the authoritative name servers for the Root Zone.

Root Zone
The top of the domain name system hierarchy. The root zone contains all of the delegations for top-level domains, as well as the list of root servers, and is managed by IANA.

Root Zone Management RZM
The management of the DNS Root Zone by IANA.

RZM Automation
A project to automate many aspects of the Root Zone Management function within IANA. Based on a software tool originally called "eIANA".

Sponsoring organization
The entity acting as the trustee of a top-level domain on behalf of its designated community.

Sub-domain
A domain that resides within another domain. For example, "www.icann.org" is a sub-domain of "icann.org", and "icann.org" is a sub-domain of "org". Sub-domains are entrusted to other entities through a process of delegation.

Top-level domain (TLD)
The highest level of subdivisions with the domain name system. These domains, such as ".COM" and ".UK" are delegated from the DNS Root zone. They are generally divided into two distinct categories, generic top-level domains and country-code top-level domains.

Trust anchor
A known good cryptographic certificate that can be used to validate a chain of trust. trust anchor repository (TAR) Any repository of public keys that can be used as trust anchors for validating chains of trust. See Interim Trust Anchor Repository (ITAR) for one such repository for top-level domain operators using DNSSEC.

Trustee
An entity entrusted with the operations of an Internet resource for the benefit of the wider community. In IANA circles, usually in reference to the sponsoring organisation of a top-level domain.

U-label
The Unicode representation of an internationalised domain name, i.e. how it is shown to the end-user. Contrast with A-label.

Unicode
A standard describing a repertoire of characters used to represent most of the worlds languages in written form. Unicode is the basis for internationalized domain names.

Unsponsored top-level domain
a sub-classification of generic top-level domain, where there is no formal community of interest.

UTF-8
A standard used for transmitting Unicode characters.

Variant
In the context of internationalised domain names, an alternative domain name that can be registered, or mean the same thing, because some of its characters can be registered in multiple different ways due to the way the language works. Depending on registry policy, variants may be registered together in one block called a variant bundle. For example, "internationalise" and "internationalize" may be considered variants in English.

Variant bundle
A collection of multiple domain names that are grouped together because some of the characters are considered variants of the others.

Variant table
A type of IDN table that describes the variants for a particular language or script. For example, a variant table may map Simplified Chinese characters to Traditional Chinese characters for the purpose of constructing a variant bundle.

WHOIS
A simple plain text-based protocol for looking up registration data within a registry. Typically used for domain name registries and IP address registries to find out who has registered a particular resource. (Usage note: not "Whois" or "whois")

WHOIS database
Used to refer to parts of a registry’s database that are made public using the WHOIS protocol, or via similar mechanisms using other protocols (such as web pages, or IRIS). Most commonly used to refer to a domain name registry’s public database.

WHOIS gateway
An interface, usually a web-based form, that will perform a look-up to a WHOIS server. This allows one to find WHOIS information without needing a specialised computer program that speaks the WHOIS protocol.

WHOIS server
A system running on port number 43 that accepts queries using the WHOIS protocol.

Wire format
The format of data when it is transmitted over the Internet (i.e. "over the wire"). For example, an A-label is the wire format of an internationalised domain name; and UTF-8 is a possible wire format of Unicode.

XML
A machine-readable file format for storing structured data. Used to represent web pages (in a subset called HTML) etc. Used by IANA for storing protocol parameter registries.