Native Jira + Confluence integration is awesome, however, not all data can be reflected in a proper way through it. If you are using BI tools to make business decisions even more insightful, you can use specific plugins to have access to big data collected and used by those tools at hand, right in your Jira data dashboards in Confluence.
In other words, you will be able to merge data from Jira in Tableau and then in Confluence, which will let you run your web development projects even more successfully.