Can you define black hat SEO ?

[Sallynguyen]

Black Hat SEO is used to classify techniques which aim to control the SERPs, by causing bad effects to the reliability of a search engine's ability to bring significant results to what internet users are looking for through different search engines.

The advantage is that it allows for quicker results compared White Hat SEO.

In the world various SEO companies are utilizing this technique, which allows faster results. It also leads fulfillment of their consumers.

But the disadvantages of black hat seo are several. Black hat seo can even cause certain risk. Consequently, a website can be banned or penalized. Being banned is rare because it means an ultimate removal of a particular website from the SERPs.

[ngocptit]

Dark hat SEO is a kind of unscrupulous seo tactic utilized to improve a website's search engine page (SERP) rating illegitimately or reduce the position of a competitor's site.

[TomClarke]

There are many examples of black hat SEO. It can be cloaking, keyword stuffing, refferal networks, booster websites, comment spamming! Also there are a huge number of other black hat SEO methods. Substantially, everything that does not lead to a natural growth of the back links can be described as undesirable by search engines and therefore black hat SEO! 

[hoahong]

Keyword stuffing
cloaking
Doorway page
Link farms

[Kate Evans]

Hi! I wish you to know that Black Hat SEO is a type of SEO tactics which is used to raise a website's search engine results page ranking illegitimately or lower the ranking of a competitor's site. As for me, it is dengerous to use Black Hat SEO, I suggest you to use While Hat SEO which help a website feature prominently in organic search results.

[jaysh4922]

Black Hat SEO means not follow Google's Quality Guidelines by this method website may be penalize when Google will update their algorithm.