Offsite SEO is focused on mainly backlinks and citations. Backlinks are hyperlinks from other sites pointing to this one, as well as things like Facebook Likes, Google +1 shares, Tweets, Diggs, StumbleUpon pages, etc. Citations are mentions but not necessarily direct backlinks, like a directory listing.
Get enough good backlinks and citations, and you will dominate the page one listings in Google for your niche. However, get enough bad backlinks and you will fall back several pages faster than you would think possible. Fall far enough (to page 3, 4, 5 or beyond) and your site will never been seen in organic searches.
Be aware of bad backlinks before they affect your ranking. In the SEO world, it can takes weeks or even months to know exactly what’s happening online. Google does not share all of its data and since Google represents around 70% of search traffic world-wide, what Google sees is what really matters. The fact it is so guarded with what it knows that it presents a serious challenge to stay on top of it. Plus, it sometimes takes a long time for Google to find backlinks and other content. Fortunately, there are online services that do a pretty good job of making up for what Google doesn’t tell us or for what Google chooses to hide. When you are facing negative SEO attacks, as recently threatened, it can take longer than you would like to determine whether you actually are under attack, the severity of said attack, and why it is happening to your site. You don’t know where the attack is coming from and you usually cannot see it until the damage is done.
Negative SEO usually involves building countless backlinks from low-quality and spam filled domains. The objective is to poison the targeted site. In other words, to convince Google into thinking the target site is not-trustworthy because it is being associated with bad neighborhoods. It’s well known in SEO circles that negative SEO does work. Fortunately, Google has a very good algorithm that tends to identify negative SEO attacks and squash them. The scammers, spammers, and people trying to harm your ranking can spend as much time and money as they want on negative SEO, but in the end most of their efforts won’t matter. However I said “most” for a reason. The reality is that there is a lot we don’t know about what’s happening online and only so much we can learn, since Google holds a lot of data back. The problem is first realizing whether we are actually under attack or not. At this point in time, we haven’t seen too much in the way of intentionally bad backlinks or SEO attacks. No more than there always has been, but that doesn’t mean negative SEO isn’t in the planning stages. It might well be the next thing to attack rankings and it is crucial that you are prepared to fight back.
Be aware and prepared to spot and stop a Negative SEO Attack