Internet in the United Kingdom

.uk is the Internet country code top-level domain (ccTLD) for the United Kingdom. It was first registered in July 1985, seven months after the original generic top-level domains such as .com and the first country code after .us. .uk has used OpenDNSSEC since March 2010. , it is the fifth most popular top-level domain worldwide (after .com, .cn, .de and .net), with over 10 million registrations.

right|thumb|The GCHQ|Government Communications Headquarters (GCHQ) operates "Tempora"

UK digital rights advocacy group

Domain name registry for the UK

Internet mass surveillance and data collection programme operated by Britain's GCHQ