Content and config changes not visible for public/anon

Hello,

I’ve made some edits and changed the <front> designation on the ndel.yale.edu site.    I can only see these changes

• when I am logged in
• when not logged in when I tack on a fake query string to the URL.

I have clicked on ‘Clear all caches’ and ‘Rebuild Permissions’ a few times.

I wasn’t paying attention to Varnish before, but I do notice that the site isn’t connecting to Varnish, in case that is important.

(PS, on another site we manage, I notice that it has a different Varnish setup ‘Cloud Simple Varnish Flush Settings - but not here, is there a site update I need to ask for for all of the sites we manage?)

Thanks!