Hi Ja,
A category lookup on the proxySG/ASG would return 4 possible answers
1. name of the category that it has matched
2. none - it looked up successfully but not matched category was found
4. unavailable - which indicates either database is not available / database build is not completed / corrupted (fully/partially)
If you have seen unavailable, I would recommend verifying some other known urls/sites like google.com facebook.com what happens with the lookup results for those? also its worth checking what is database status under proxySG àconfiguration à content filtering à bluecoat àview download status
For example this is a test result i got from my lab proxySG , where the lookup result show unavailable (test ran from CLI)
#(config content-filter)test-url google.com
Testing URL 'http://google.com/'
% categories:
Policy: none
Blue Coat: unavailable
#(config content-filter)
and I If check the status of the Bluecoat web filter download it shows below
#(config content-filter)bluecoat
#(config bluecoat)view
Download log:
Rebuilding existing database at: 2017/12/14 14:43:38 -0500
Database build failed
Previous download:
Rebuilding existing database at: 2017/11/01 20:21:52 -0400
Database date: Mon, 31 Jul 2017 16:45:50 UTC
Database expires: Tue, 19 Jan 2038 03:14:07 UTC
Database version: 372120300
So this indicates proxySG needs to redownload the database again (by hitting download now) and let it rebuild on its own OR the exiting DB needs to be purged and downloaded again. Referenced in KB https://support.symantec.com/en_US/article.TECH241744.html
Thanks
Akhter