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.tr is the Internet country code top-level domain (ccTLD) for Turkey. It is administered by NIC.TR (under Middle East Technical University) Computer Center and Turkey Internet Society (Local Chapter of ISOC). .nc.tr and .ct.tr are used as second-level domains for the Turkish Republic of Northern Cyprus, which is a self declared state and not recognised by the United Nations, and as such has no country code assigned.
|TLD type||Country code top-level domain|
|Registry||NIC.TR (run by Middle East Technical University)|
|Sponsor||.tr Domain Registry (managed by Middle East Technical University Computer Center DNS Group)|
|Intended use||Entities connected with Turkey|
|Actual use||Very popular in Turkey, especially com.tr subdomain (as of 19 February 2008, there were 103,175 com.tr registrations); gets some other uses related to Turkey|
|Registered domains||403.394 (Feb 21, 2019).tr Registry daily domain count|
|Registration restrictions||Varying Restrictions on generic 3rd-level subdomain names, registrant must be located in Turkey or have representative there|
|Structure||Second-level registrations were initially prohibited; registrations are made directly at the third level beneath generic-category 2nd level domains, with the exception of the registrar website nic.tr|
As of March 2017, around 15.53% of all the .tr domains were served via secured HTTPS protocol, with the Let's Encrypt Authority X3 being the most popular SSL certificate. Microsoft-IIS is the most popular web server, serving 35.31% of the .tr domains, followed by Apache serving 35.14% of the total .tr domains.
nic.tr, the official registry's domain, is the only second-level domain under this TLD, other second-level domains are prohibited.
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