# Domain Availability — Zapi reference

> Check domain registration availability via RDAP protocol.

**Base URL:** `https://api.zpi.web.id`
**Auth:** Send `x-api-key: YOUR_KEY` header on every request. Get a free key at https://zpi.web.id/dashboard/keys.
**Response envelope:** `{ status, message, content }`
**Rate limit:** 60 req/min on free tier.

**Related:**
- Detail page: https://zpi.web.id/api/web-tools/rdap
- Endpoint catalog: https://zpi.web.id/category/web-tools
- Concise index: https://zpi.web.id/llms.txt
- Full reference: https://zpi.web.id/llms-full.txt

---

## Domain Availability

**Category:** web-tools · **Slug:** `rdap`
**Detail page:** https://zpi.web.id/api/web-tools/rdap

Check domain registration availability via RDAP protocol.

**Tags:** utility, domain, rdap, availability

### Check Availability

Check if a domain is registered or available.

- **Method:** `GET`
- **Endpoint:** `https://api.zpi.web.id/v1/web-tools:rdap/availability`
- **Cache TTL:** 300s

**Parameters:**

| Name | Type | Location | Required | Description |
|------|------|----------|----------|-------------|
| `domain` | string | query | yes | Domain name (akan di-normalize: strip protocol, www, path) |

**cURL:**
```bash
curl "https://api.zpi.web.id/v1/web-tools:rdap/availability?domain=google.com" \
  -H "x-api-key: YOUR_API_KEY"
```

**JavaScript / TypeScript:**
```javascript
const res = await fetch("https://api.zpi.web.id/v1/web-tools:rdap/availability?domain=google.com", {
  headers: { "x-api-key": process.env.ZAPI_KEY }
});
const data = await res.json();
```

**Python:**
```python
import requests
r = requests.get("https://api.zpi.web.id/v1/web-tools:rdap/availability?domain=google.com",
  headers={"x-api-key": "YOUR_API_KEY"})
data = r.json()
```

**Example response:**
```json
{
  "ok": true,
  "domain": "google.com",
  "expires": "2028-09-14T04:00:00Z",
  "available": false,
  "registrar": "MarkMonitor Inc.",
  "registered": "1997-09-15T04:00:00Z"
}
```

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_Generated: 2026-08-02T14:22:08.110Z_