keycdn IP Location Finder

Overview

KeyCDN’s geo API resolves IPs to location, ISP, and timezone — with a free tier requiring a key.

⚠️ Gotcha (verified 2026-08): requests return HTTP 403 “User-Agent not properly defined” unless the User-Agent follows their format ({app_name}/{app_version}, e.g. my-app/1.0). Send a proper UA.

Quick Start

Lookup (use a proper User-Agent!):

curl "https://tools.keycdn.com/geo.json?host=8.8.8.8" \
  -H "User-Agent: my-app/1.0"

{
  "status": "success",
  "description": "Data successfully received.",
  "data": { "geo": { "ip": "8.8.8.8", "country_name": "United States", "city": "Mountain View", "isp": "Google LLC" } }
}

Authentication

• A key is optional for low volumes; the User-Agent must be {app}/{version} (403 otherwise, verified).

Rate Limits & Notes

• Free tier: limited requests/hour (check the docs); a key raises them.
• Returns location, ISP, timezone, and connection type.

FAQ

Is KeyCDN geo free? Free tier with hourly limits; more is paid.

Why 403? The API requires a {app}/{version} User-Agent (verified).

What data does it return? Location, ISP, timezone, and connection type.