# .dev domain name checker

.dev is a generic TLD run by Google Registry for developers and the things they build: tools, docs, portfolios and side projects. It's open to anyone.

Check a name: open https://availablewhois.com/?q=yourname.dev (replace `yourname`).

## .dev at a glance

- **Type**: Generic TLD (gTLD)
- **Best for**: Developers, docs, side projects
- **How we check**: Registry RDAP. ICANN requires generic TLD registries to publish registration data, so answers come from the source.

## Worth knowing

- The whole TLD is on the HSTS preload list, so browsers only connect over HTTPS. Most hosts issue certificates automatically, but plain-HTTP setups won't load.
- As a generic TLD, it publishes registration data over RDAP, so AvailableWhois checks the registry directly.
- Good for product docs and APIs (docs.yourname.dev) even if your main site lives elsewhere.

## Related TLDs

[`.app`](https://availablewhois.com/tlds/app.md) · [`.sh`](https://availablewhois.com/tlds/sh.md) · [`.io`](https://availablewhois.com/tlds/io.md) · [`.tech`](https://availablewhois.com/tlds/tech.md)

Compare them all in the [TLD guide](https://availablewhois.com/tlds.md), or try a [domain hack](https://availablewhois.com/domain-hacks.md) that ends in `.dev`.

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Canonical page: https://availablewhois.com/tlds/dev · Check a domain: https://availablewhois.com/ · All docs: https://availablewhois.com/llms.txt