when i run full crawl it completed withing very short time 20 seconds and searchable items are 0, and users unable to search the site.
In search server event viewer i found below errors 1. The start address cannot be crawled.
Context: Application 'Search_Service_Application', Catalog 'Portal_Content'
Details: An unrecognized HTTP response was received when attempting to crawl this item. Verify whether the item can be accessed using your browser. (0x80041204) our site is running on https