"Google typically doesn't go after individual Web sites," he said, adding that filters usually search the Web for spam. When the spam team finds sites that are breaking the rules, they contact them and go through a reconsideration process to bring the site in line.
Earlier this year, the search engine community -- and Internet users around the world -- had another chuckle.
In January, Google flagged the entire Internet as Malware for one Saturday morning.
Usually the warnings are meant to alert users to sites that could harm their computers, but the error meant that every person who used Google to search saw a warning next to every site listed.
Search Engine Land's Sullivan estimated that the short-lived problem probably meant that the company took some kind of revenue hit. At the very least, it gave the larger-than-life tech firm a moment of humility.