.eco is a global top-level domain for businesses, organizations, governments and individuals committed to positive environmental change. It provides .eco domain names as a way for people and groups to communicate their environmental values and help visitors identify websites connected with sustainability. The domain is intended for those working toward a sustainable future who are willing to disclose the environmental actions they are taking.

To get a .eco name, customers search for an available domain, purchase it through a preferred retailer, take the .eco pledge, create a profile and set up their website. The .eco community includes thousands of businesses, non-profits, governments and individuals, with examples spanning recycling, sustainable packaging, community resilience, low-carbon construction and conservation. More than 50 environmental non-profit and intergovernmental organizations have contributed to a coalition advising on .eco policies.

Alongside domain registration, .eco offers information about the extension, community news, support articles, FAQs and contact assistance. The registry is associated with Big Room Inc., and provides policy information covering privacy, sustainability and accessibility.