Note, just tried it, and if you put in a more likely cased "Putty" or "putty" in the URL, the official site badge isn't offered (though PuTTY official page does show up in top 3).
It's really AOL keywords all over again - nothing bad, but just not Google's style.
But what it does give you is the option to re-search on "PuTTY" from the quick-info box, which I almost always do when looking for an authoritative info source.
It's really AOL keywords all over again - nothing bad, but just not Google's style.