You don't need to remove your username / password credentials from the code to use token authentication.
Token
To switch to token authentication:
auth-token
field under the HTTP Header. The DPV lock occurs when a seed address is returned. A seed address is a non-existent address that will deactivate DPV functionality if it's searched upon. Seed addresses are used to prevent the illegal creation of verified address lists. Please log in to Self Service Portal to unlock DPV functionality.
Experian maintain multiple data centers, geographically separated, to ensure the availability of the application.
AV SOAP uses DNS based failover mechanism to route your traffic away from data centers when they are no longer "healthy". For this to work you must only integrate against the published API endpoints for AV SOAP.
Should a failover occur then our backend technology will update the DNS record to point to a healthy data center.
Where possible we suggest
Customers should always ensure that their integration servers can communicate with IP's published by Experian.