Search engine optimization is not as easy today as it was before. With Google employing intelligent algorithms to filter and penalise bad links and potential spam, every webmaster’s top priority should now be to ensure that their website has a clean link profile. You definitely don’t want to be in danger of being de-indexed by Google, as a penalty for containing high-risk back-links. But you might ask yourself: where is exactly the line between a good and a bad link profile?

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