C Field45 field-book
Est. MMXXVI · Field Book · Open Web

Field45 field-book

Charting the open web — 833 verified outposts across 22 surveyed sectors


833 Sites
22 Sections
Free to log
Open Log

Add Your Outpost to the Field45 Register

Submit your site for review and, if verified, it will be assigned a log entry in the relevant sector of the Field45 expedition register. Listing is free

+ Log a site

Field-book questions

What is Field45?

Field45 is an expedition-style web directory that catalogues 833 verified sites across 22 organized sectors. Think of it as a field researcher's log of the open web — methodically mapped, manually verified, and openly available to browse.

How are sites organized in Field45?

Each listed site is assigned to one of 22 sectors based on its primary activity — from Field Medicine and Navigation Systems to Expedition Routes and Camp Provisions. Sectors make it easier to navigate by area of interest rather than searching by keyword.

Is it free to browse the directory?

Yes. The Field45 register is freely accessible with no account, login, or payment required. Browse any sector, check any listing, and navigate the full log at no cost.

How do I submit my site?

Use the submission form to send your site for review. Provide the URL, a brief description, and select the most relevant sector. Field45 staff will review the submission and, if verified, assign it a log entry in the register.

How long does the review process take?

Most submissions are reviewed within a few days of receipt. If your site is approved, it will appear in the relevant sector of the Field45 log. If additional information is needed, the review team may follow up before confirming the entry.

Can I update my listing once it is in the log?

If your site's details change after logging, you can submit an update request through the contact form. Field45 staff will verify the updated details before amending the register entry.

What kinds of sites does Field45 include?

Field45 catalogues active, reachable sites across a broad range of industries — from travel outfitters and health clinics to software engineering firms and legal advisories. The register does not restrict to specific geographies or languages, though all entries must be verified active at the time of logging.

About Field45

Field45 is an expedition log in the form of a web directory, charting 833 active outposts across 22 surveyed sectors. The register spans professional services, travel and hospitality, digital infrastructure, healthcare, and general trade — organized as a field researcher would catalog terrain: methodically, with cross-references and verification notes. Each entry in the Field45 log was reviewed before being assigned a sector position. The directory serves as a starting reference for navigating the broad landscape of the open web. Submissions from new outpost operators are reviewed and added to the active register on a rolling basis. Field45 operates as a permanent, openly accessible log — no credentials required to browse.