iptrace.io: The only IP to Geolocation API you will ever need.

Locate your users, enrich their experiences, prevent fraud, ensure compliance, and so much more

I think IPTrace has been merged into IPStack. In case of IPStack, if it is being used on the client-side, it does not provide the security to keep your API secure from potential “theft.” This means your API key is vulnerably exposed to everyone if it is being used on the client-side. To overcome this problem, I think ipgeolocation.io is the best option.It is more secure than IPStack. It provides a safety-cover (Request Origin) which lets you make API calls on your client-side without an API key. Besides API security, ipgeolocation.io has other features (high accuracy, least latency and relatively more economical) that makes it to stand among most efficient IP geolocation APIs available in the market.

what are the sources of information? c: