true, it looks similiar. But due to my recent research on this, from stackoverflow [https://stackoverflow.com/questions/41480688/what-is-the-difference-between-bans-and-purge-in-varnish-http-cache](https://stackoverflow.com/questions/41480688/what-is-the-difference-bet...

What is the difference between Purge and Ban?

• Purge is like doing a “hard delete” on a cache entry: it is removed right away so that any subsequent requests must go back to the origin server.
• Ban is more like flagging an entry as no longer valid. The en...