Just thought I would pass this along to those who may be new to Norton Safe Web Searches, and the Site Safety ratings, as I just figured it out today 
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If you have Google Instant selected in your Search Preference, your first search displayed in a web search, will have a blue scrolling arrow to the left of the search. A Norton Site Safety icon will not be displayed on that 1st listed search, even though it may be a Home Page of a well known vendor.
To see all the sites rated by Site Safety, go into your Google Search Settings and on Google Instant, enable Do not use Google Instant, save your changed preferences, and you will no longer have the blue arrow, and now all sites will have the Norton Site Safety icon next to them.
This has probably been mentioned here before, but just in case... 