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Is there a way to remove or block external backlinks? There was a drop in the Google results from page 1-2 to page > 8.
I am now looking at the external backlinks and I see now multiple domains that I don't want them to be linked to our website ( sex sites, spi directories, ... ).
Also I have a domain with >1300 links on 1 page ( I see this in Google webmaster tools ). Can this also be the reason of the drop?