CoinTracking uses multiple IP addresses to retrieve transactions via Exchange APIs.
Some exchanges offer IP whitelisting for their APIs. If you want to use whitelisting, you need to enter all these IPs:

63.32.3.10

63.32.21.240

34.254.117.125


On exchanges with strong API restrictions, calls can also be made over these IPs:
18.202.90.187

18.202.210.42

18.203.26.123

34.241.219.17

34.248.103.244

52.18.20.232

63.32.177.239

63.33.123.58

63.34.82.235

52.50.200.166


We retain the right to change this addresses in the future if necessary or add additional addresses.