.ac.uk domains list

What is .ac.uk TLD

.ac.uk is the United Kingdom’s dedicated academic second-level domain, reserved for recognised higher-education institutions, research organisations, and closely related bodies. In practice, .ac.uk domains host official communications, scholarly resources, and services used by students and faculty, while .ac.uk websites provide trusted destinations for research outputs and institutional information. In our index, we currently observe 35 active .ac.uk domains, with 34 .ac.uk websites live and 34 showing DNS records; operational footprints appear across 5 countries due to global hosting, collaborations, and mirror services. This compact namespace exhibits high utilisation relative to its size, reflecting stringent eligibility and stable stewardship. Download webatla’s .ac.uk domain datasets to examine the namespace in detail.

History and key features of .ac.uk TLD

Introduced early in the UK internet naming framework, .ac.uk evolved to identify accredited academic entities and to separate them from commercial or governmental registrants. Policies governing .ac.uk domains emphasise verified eligibility, conservative naming practices, and continuity of institutional identity; as a result, .ac.uk websites tend to change holders infrequently and remain long-lived. Our telemetry shows subdued churn: new registrations were 0 last week and 0 in January 2026 overall last month, consistent with a mature, policy-restricted space. Within the active base, 34 domains reporting DNS against 35 total suggests near-complete technical configuration. Download webatla .ac.uk domain datasets to analyse governance, lifecycle, and configuration patterns.

Why and who choose the .ac.uk domain

Organisations choose the .ac.uk domain to signal UK academic status, align with sector governance, and convey trust to students, staff, funders, and partners. Typical registrants include universities, colleges, research councils, learned societies, and consortia managing shared infrastructure; many operate .ac.uk websites for admissions, repositories, identity, and collaboration services. Although nationally scoped, usage touchpoints extend to 5 countries through international hosting and partnerships. For situational context, we index 35 active addresses and observe 34 live sites, helpful for benchmarking institutional web presence across .ac.uk domains. Eligibility policies also reduce cybersquatting and encourage long‑term stewardship of academic identities. Download webatla .ac.uk domain datasets for reproducible research and benchmarking.