C Keystone28 field-book
Est. MMXXVI · Field Book · Open Web

Keystone28 field-book

A hand-maintained curator's index of 833 active websites across 22 sections — browse a section, or submit your own site in under a minute.


833 Sites
22 Sections
Free to log
Add your site to the index

Submit a listing to Keystone28

Find the section that fits your site, enter your URL, and your listing is catalogued in under a minute. No account required. Free to list — always.

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Field-book questions

What is Keystone28?

Keystone28 is a hand-maintained web directory — a curator's index of active websites organised into 22 subject sections. Each entry was submitted by the site's operator and reviewed by our curatorial team before being logged in the index.

How do I add my site?

Open the section that best matches your site's subject, then use the submission form on the section page. Enter your URL and a brief description, and your listing will be reviewed and logged in the index.

Is it free to submit?

Yes. Submission to Keystone28 is free and does not require an account or registration. There are no paid placement options — all entries in the index are treated on equal terms.

How are sites organised?

Sites are arranged into 22 sections defined by trade or topic. Within each section, entries are ordered chronologically by submission date. There is no algorithmic ranking: the index is a flat, human-maintained register.

Do you review submissions before they appear?

Yes. Each submission is reviewed to confirm that the domain resolves to an active site and that the entry is not a duplicate. We do not assess the quality or content of the site beyond these basic checks.

How long does it take for my site to appear?

Most submissions are processed and listed within a short period after they are received. If your site does not appear after a reasonable wait, check that the URL was entered correctly and that the domain is publicly reachable.

Can I update or remove my listing?

To update the details of an existing entry or request its removal, use the submission form and note the change required. Our curatorial team will process the request and update the index accordingly.

About Keystone28

Keystone28 is a hand-maintained curator's index of the working web, cataloguing 833 active domains across 22 classified sections. Every entry was submitted by the site's operator and logged by our curatorial team without algorithmic ranking or paid placement. The index is arranged the way a reference librarian would arrange a subject catalog: sections are defined by trade or topic, entries within each section are ordered by submission date, and the whole structure is browsable without a search box, though one is provided. We do not rank, grade, or editorially endorse the sites we list — we record that they exist and that they were submitted. Keystone28 is updated continuously as new submissions arrive and entries age out. A curated, human-maintained register of sources remains more useful than an algorithmically ranked list of paid results, and that is the premise on which this index was built.