prewk/stack_overflow_clones

stack_overflow_clones

to block stackoverflow clones from search results

first source was taken from : https://gist.github.com/foobarrio/0dde8b5c4713594cddf5

to block this sites from google search engine, you can use extensions and provide this list to them, for example:

Personal Blocklist (not by Google) for Firefox

Personal Blocklist (not by Google) for Chrome