If you do any software development, you probably use the Google search engine to look up lots of details.
Have you ever had to pick through your search results to avoid websites whose search engine optimization is better than their information? I’m looking at you, W3 Schools and Experts – Exchange!
You can configure it to conceal those web sites from your search results.
If you are looking for information about gender reassignment, what are you doing on the intertoobz? Consult an expert!