How can I get the date of creation of my azure site

Solution 1:

You may review your Activity Logs- Through this, you can determine: • what operations were taken on the resources in your subscription • who initiated the operation (although operations initiated by a backend service do not return a user as the caller) • when the operation occurred (in your case WebApps) • the status of the operation • the values of other properties that might help you research the operation

The activity log contains all write operations (PUT, POST, DELETE) performed on your resources. It does not include read operations (GET). You can use the audit logs to find an error when troubleshooting or to monitor how a user in your organization modified a resource.

Note: Activity logs are retained for 90 days. You can query for any range of dates, as long as the starting date is not more than 90 days in the past.