The name is the first thing you ship.
Check any domain in seconds — straight from the registries via RDAP, not a reseller's cache. Taken? Get typo-near, meaning-near, and alt-TLD suggestions until one sticks.
Availability checks are free and unlimited. No account needed.
Honest availability
RDAP answers from the authoritative registry, with expiry date and registrar when a name is taken. We say “unknown” instead of guessing.
Names that don't suck
Alt extensions, flickr-style typo variants, and LLM-assisted semantic neighbors — ranked, deduped, and sanity-checked as real labels.
Idea → 20 candidates
Describe what you're building; get back name candidates with rationale and live availability. The fastest path from brief to brandable.
Never lose a drop
Watch any domain. We capture its expiry from RDAP and email you before it lapses — yours, or the one you're stalking.
TLD reality check
What .io actually costs vs .dev vs .ai, by category, with sample registrar prices. No first-year-teaser games.
API-first, really
Every feature in this UI is one documented /v1 call away. OpenAPI spec, bearer keys, consistent errors. The web app is just another client.
Fair-priced, like it should be
Registrars bury features under upsells. We sell the features and skip the circus.
- Unlimited availability checks
- 3 actions/day (suggestions, ideas)
- 1 watched domain
- Full API access with a test key
Built for builders
One key, six endpoints, zero surprises. Same error envelope as every MRR Maxxing API.
curl -H "Authorization: Bearer $DOMAIN_HELP_KEY" \
"https://api.domainhelp.dev/v1/availability?name=yourbigidea.com"
{
"domain": "yourbigidea.com",
"available": true,
"status": "available",
"source": "rdap",
"checkedAt": "2026-06-11T09:30:00.000Z"
}Full spec: openapi.yaml · Issue keys from the dashboard