Check distance between geo coordinate and IP location using ExtractIP /distance API

Verify Proximity with the Distance API

The ExtractIP Distance API is a powerful tool designed for security and fraud prevention. It allows you to verify if an IP address is located within a certain radius of a specific geographic coordinate. This is particularly useful for verifying user locations, detecting potential GPS spoofing, or ensuring that a request is coming from an expected area.

How it Works

The /geolocate/distance endpoint accepts a POST request with a geographic coordinate (latitude and longitude) and a radius (distance). The API then compares these coordinates with the detected location of the incoming request's IP address.

Scoring Logic

The API returns a proximity score based on the distance between the provided coordinates and the IP's actual location:

• Score 0: The provided coordinates match the IP's location exactly.
• Score 100: The coordinates are far from the IP's location, reaching the edge of the specified radius or beyond.

This scoring system provides a granular way to assess the risk or validity of a user's reported location.

Example Usage:

You can test the Distance API using a simple curl command. Here is an example of how to check if an IP is within 100km of a specific coordinate:

curl -X 'POST' \
'https://api.extractip.com/geolocate/distance' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
"lat": 5.4282,
"lon": 4.9041,
"distance": 100
}'

By integrating this API into your workflow, you can add an extra layer of verification to your security protocols, ensuring that your users are truly where they say they are.