Domoticz

At which way I can grab info of a website and put them in a sensor in Domoticz?

I want to poll the website "https://oplaadpalen.nl/laadpaal/47957" and grab the data
"Laadpunten vrij: 0   bezet: 2   in storing: 0"
The numbers in this data I want to use in a sensor.

First hit in Google
http://www.oplaadpalen.nl/w/outbound-api/

I would retrieve the json data. Do you know how to handle this?

Testing by retrieving this data in your browser would be the first step