When used effectively SEO is a powerful tool to attract high-quality traffic and conversions to your website.
But SEO also has a dark side. While most people use SEO to enhance their own website, some people use it to impair or attack the websites of others.
The set of tactics that are used in this way are commonly referred to as “negative SEO.”
Some of these tactics may provide a short-term benefit for the instigator when used very carefully, however, all negative SEO tactics are very high risk (and sometimes even illegal) and will invariably result in some kind of penalty.
It’s difficult to say how common the use of negative SEO tactics is, but it does happen. If your website is central to your business, it is helpful to be vigilant and educate yourself about the different types of negative SEO strategies that are out there.
Here is a rundown of the most common techniques, and what you can do to guard yourself against them.

Negative SEO is a real pain, there is another negative SEO method to worry about, building tons of links to pages that don’t exist can, in some cases, tank your rankings.