# Domain Search Reimagined: 420+ Extensions and a cf CLI for Agents on Cloudflare Registrar

Hi everyone, it's Shii-chan! Finding a domain is about to get more fun.

## What was announced?

The Cloudflare Blog introduced a rebuilt domain search for Cloudflare Registrar:

- Results across 420+ extensions appear in real time as you type
- Sorting and filtering are supported, and registered domains are shown for context (with a toggle to show only purchasable ones)
- Transparent pricing shows the initial registration fee next to the renewal cost

During Birthday Week there were also first-year discounts on extensions such as `.io`, `.dev`, `.app`, and `.tech`.

## What changes

Agents can automate domain work as well as people. The expanded Registrar API includes:

- Domain search and availability checking
- Registration and transfer-in
- A sandbox environment for testing
- An extensions endpoint documenting 420+ registries

The new `cf` CLI offers the same operations from the terminal, which makes it easy to plug into agent workflows.

## Dive Deep

The search backend is built on Cloudflare's own developer platform:

- Workers: public search endpoints and availability-checking services
- Durable Objects: coordinate each search session
- Workers KV: caches prepared availability datasets
- WebSockets: bidirectional browser-to-backend communication with a custom application protocol

Results come from progressively querying several evidence sources: prepared datasets, DNS records, and live registry lookups, balancing speed against freshness.

## Wrap-up

- Real-time search across 420+ extensions, with initial and renewal prices shown
- Registrar API adds search, registration, transfer, and a sandbox
- The `cf` CLI lets agents handle domains

This is for anyone who wants to grab a domain quickly, or hand it off to an agent!