Icons in search results are displayed according to our Reputation Service (KSN). I guess everyone knows what the reputation is. It is about user's opinion. It shows how many our users trust a website (or consider it's dangerous). Grey icon means that there are still not enough opinions of our users. It is obviously connected to a website popularity and visiting rate. But it does not mean that the website is infected. Our databases will not detect and block safe website. But the reputation is a b