Allow my Wix site IP only

I have a site that sends requests to my external API (AWS Load Balancer). In my Load Balancer I want to allow requests from this Wix site IP only.

So, my question, how can I know from which IP Wix sends requests to my external API? Is this IP static or dynamic? If it is dynamic IP, can I change it to static?

Wix is based on a Cloud environment and your site will not have a static IP.

Check out posts on a similar matter:
https://www.wix.com/corvid/forum/community-discussion/backend-ip-range
https://www.wix.com/corvid/forum/community-discussion/corvin-fetch-ip-address

Hey, take a look here:

B.