A free gazetteer of 832 registered websites across 22 subject districts.
Keystone55 accepts submissions from site owners who wish to have their address recorded in the register. Submit your site and a curator will review it for inclusion in the appropriate district. Registration is free.
Add your siteKeystone55 is a web gazetteer — a structured register of online addresses organised across 22 named subject districts. The catalogue currently holds 832 entries and is maintained as an open reference resource.
Yes. Registration in the Keystone55 gazetteer is free of charge. Submit your site's address using the Add a Site form, and a curator will review it for placement in the appropriate district.
Sites are assigned to one of 22 named districts based on their primary subject or trade. The curator reviews each submission and determines the most suitable placement in the register.
Navigate to the Add a Site page, enter your site's URL, and select the district you feel best represents it. The curator will review the submission and assign it accordingly.
Review times vary with submission volume. Sites accepted for inclusion are typically added to the register within a few days. The gazetteer is updated on a rolling basis.
You may indicate a preferred district when submitting, but the curator reserves the right to reassign entries to the section that best represents their content.
Keystone55 is maintained by an editorial team. The register is updated as new submissions are reviewed, and existing entries are periodically checked for accuracy.
Keystone55 is a structured web gazetteer recording 832 online addresses across 22 named districts, from Finance & Capital to Geography & Travel. The register has been compiled as an open reference resource — each entry is reviewed and assigned to the sector that best represents its primary function. The catalogue spans a wide range of industries, services, and interests, and is updated on an ongoing basis as new addresses are submitted and reviewed. Browsing by district narrows the map to a specific sector; the full register is available for general survey. Keystone55 is free to consult and free to join — site owners may submit their address for inclusion using the form provided.