Developer interface
WHO-IS API
Retrieve domain registration and ownership data programmatically.
The Velohost WHO-IS API provides structured access to domain registration data using modern RDAP sources.
It is useful for security checks, compliance workflows, and automation.
Base API URL
All endpoints listed below are relative to this base URL.
https://api.velohost.co.uk/whois/ Rate limiting
This API is protected by a global rate limit to ensure fair usage and platform stability.
- Limit: 30 requests per 10 seconds per IP address
- Burst traffic is allowed
- No authentication required
-
Requests exceeding the limit return
HTTP 429
This limit applies across all Velohost public APIs.
Error responses
The API uses standard HTTP status codes to indicate errors.
Returned when the global rate limit is exceeded.
{
"detail": "Rate limit exceeded"
}
Returned when the domain parameter is missing or invalid.
Endpoints
WHO-IS domain lookup
Retrieves domain registration and ownership data.
GET /lookup?domain=example.com
{
"domain": "example.com",
"registered": true,
"registrar":
"RESERVED-Internet Assigned Numbers Authority",
"created_at": "1995-08-14T04:00:00Z",
"updated_at": "2025-12-16T17:28:41Z",
"expires_at": "2026-08-13T04:00:00Z",
"nameservers": [
"elliott.ns.cloudflare.com",
"hera.ns.cloudflare.com"
],
"status": [
"client delete prohibited",
"client transfer prohibited",
"client update prohibited"
],
"rdap_url":
"https://rdap.verisign.com/com/v1/domain/example.com",
"iana_whois_server": null,
"source": "rdap"
} Learn more
Explore the tool, documentation, and guides.