Startup Name Check
ChatGPT pluginIs that name's domain taken?
Check whether the domain for a startup, product or business name is already registered before you fall in love with it.
Ask "is acme.com available?", "check if this startup name is taken" or "find an available .com for my bakery name".
Startup Name Check turns a name into a domain label, then asks Cloudflare Registrar's domain-check API whether that domain can be registered and what it costs. When that API is not configured, or does not cover the ending, it asks the registry's public RDAP service instead.
It checks up to five names or domains at a time across .com, .net, .org, .ai, .app and .dev by default, or the endings you choose.
For a taken domain it shows the registration, expiry and last-change dates when the registry publishes them. It never returns who owns it or any contact details.
When Cloudflare Registrar answers for an available domain, the answer includes the registration and renewal cost. That figure is not a charge and does not reserve the name.
Results are indicative: they show the status at that moment and do not reserve a name. Premium or reserved names can be unavailable or cost more.
Trademarks are not searched, so run a trademark check before you commit to a name.
It stores nothing about you: answers are cached for up to five minutes, and the only lasting record is a daily count of calls per tool.
Startup Name Check is #12,627 of 13,927 ChatGPT plugins by placement.
- Featured
- No
not on the featured shelf
Movement
From our daily snapshots over the last 30 days.
Rank by placement
Rank in Business & operations
In its category
How this plugin compares with others in the same category. Positions are counted within the category, not across the whole directory.
Business & operations2,173rd of 2,396 by placement
| # | Plugin | Position | 7d |
|---|---|---|---|
| 2171 | #12620 | 1,330places down | |
| 2172 | #12625 | — | |
| 2173 | #12627 | — | |
| 2174 | #12628 | 1,333places down | |
| 2175 | #12629 | — |
Also on other marketplaces
More from HIẾU VŨ TRUNG NGUYEN
All listings by HIẾU VŨ TRUNG NGUYENTrade Chart#6903 of 13,927 by placement
Transcript Kit#7132 of 13,927 by placement
Video Grab#7899 of 13,927 by placement
Remote Jobs by Country#7948 of 13,927 by placement
Document Tools#8103 of 13,927 by placement
CVE Risk Check#8182 of 13,927 by placement
17 more on the publisher’s page.
Example prompts
- “Is acme.com available?”
- “Check if the startup name Lumenly is taken”
- “Find an available .com for my bakery name, Rise & Crumb”
- Categories
- Made by
- HIẾU VŨ TRUNG NGUYEN · Website
- Sign-in
- On Install
- Capabilities
- Checks whether a name's domain is registered in .com, .net, .org, .ai, .app and .dev, Checks a full domain such as acme.com on its own, Compares up to five candidate names in one answer, Shows registration and expiry dates for domains that are taken, when the registry publishes them, Shows the registration and renewal cost when Cloudflare Registrar returns one, Never returns owner or contact details
- Availability
- Available
- Version
- 1.1.1
- Created
- October 4, 2026
- More info
- Sponsorship
- Promote this plugin