what is Negative SEO?

[Addpro]

If someone goes beyond Google policies to promote website then it is known as Negative SEO.

[blogging]

Negative SEO is related to build unnatural backlinks pointing towards your competitors website. Recently, Google has introduced Disavow tool to fight against negative SEO.

[Bob]

To sum it up in one sentence, Negative SEO is any malicious activity undertaken in an effort to lower a website’s search engine rankings. Sites have been known to use this technique on their competition in order to rank higher for certain keywords.

[Seo Wikipedia]

You can use disavow tool to fight against "negative SEO"" Both Google and Bing provides this too and its really works.

[Mack]

Thanks for sharing informatin.

[Pranith.E]

Negative SEO -

The process of demoting a webpage or a website from SERPs.

Negative SEO typically refers to one of a few different techniques designed to drive down the page rank of a competitor.
One of these techniques involves paying for links and pointing them straight at the competition’s website.
This can certainly have an impact especially considering the changes that Google has implemented through their Penguin updates.
Two other equally underhanded, and potentially illegal, means of employing Negative SEO include posting a massive number of top quality reviews at a competitors site so that it seems that they were paid for and hacking the site to add a great deal of malicious or suspicious code.

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[My Id]

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[Aswathy]

Negative Seo reffers spamming, the website will be blacklisted due to negative seo.

[Md Ariful Islam]

There are many kinds of negative seo can be created by your seo master or seo provider.
NO: 01. Suppose your seo provider use the same keyword into your website more than 3-4%
NO: 02. Suppose your page rank is 2, but you link build the site into N/A page rank site.
NO: 03. If anyone use software to build link, sometimes it can be spam by search engine and you will get negative rank.
NO: 04. However, if your article and title also keywords does not matching by title.
NO: 05. If you don't use the Google and Bing webmaster tools to verify your site.
NO: 06. Must you have to use and create the sitemap.xml and upload into webmaster tools. If you don't use so your site will get negative day by day.
NO: 07. Don't spamming by build same link into same domain pages.

[Mansoor]

There are two basic types of SEO, one is white hat SEO that is also known as friendly or positive SEO and second is Black Hat SEO which is also known as Negative SEO.