If your organization wants to allowlist Veeva sites, we recommend doing so by domain:
*.veeva.com*.veevavault.com*.veevavaultlearning.com and/or *.veevavaultlearning.cn for E-Learning content
Note: Veeva IP addresses are dynamic and can change with each release. We recommend all Veeva customers update their DNS caching so that integrations don’t cache the DNS indefinitely. We also recommend that you configure the DNS TTL value to no more than 60 seconds. This ensures that when a Vault resource IP address changes, your integration will be able to receive and use the new IP address by re-querying the DNS.
For more information on integration best practices, see the Developer Portal.