Whitelisting IP Addresses

We have one customer who is leery of whitelisting the two IP addresses provided ( and on every port. Can they limit the whitelist entry to a specific port (443?)?

Alternatively, if they whitelist https://api.cryptlex.com:443, do they still need to whitelist the two IP addresses specifically?

Can I get a response on this issue, please?

Is it sufficient to whitelist the url and not whitelist the IP addresses specifically?


It is sufficient to whitelist only the 443 port. As mentioned in our docs, whitelisting the URL with port should also work.