Does it work in TouchUI? Do you see any error in browser's debug console when loading the page?Make sure that the component's node with the page includes sling:resourceType property.

Jineet, this is expected behavior and it will not be changed. You would not be able to unpublish your content if it does not exist on an author instance.

You can use CRXDe console:Or use a web console http://<hostname>:<port>/system/console/status-slinglogs

Did you restart an HTTP server after you mad a modification?

In order to find all that has been modified in Assets and Pages during a particular time frame you can employ teh folwing queries:path=/contenttype=cq:PageContentgroup.p.or=truegroup.1_daterange.property=cq:lastModifiedgroup.1_daterange.upperBound=2017-04-21T23:59:59.000-04:00group.1_daterange.lower...

A good step-by-step tutorial for a site with a esponsive design is a WKND workshop:Getting Started with AEM Sites Chapter 3 - Client-Side Libraries and Responsive Grid

If you are intending to deny json request you should edit /filter section of a dispatcher configuration file and not an /invalidate section.You can try a rule similar to:/filter.... /0087 { /type "deny" /method "GET" /extension 'json' "*.1.json" }

I think that you are missing  "Approve for Adobe campaign" workflow, which you need to employ before syncing with a campaign server

Just to add to the previous reply: official documentation for data-sly-test usage:HTL Block Statements

Dispatcher calculates rules from the top to the bottom. It's a best practice to set the first rule as deny all and then define an explicit allow only to specific URLs