A more complex version of Doorway pages, as it distinguishes visits between users and search engines. If the visit was made by a search engine, this page displayed content optimized for specific searches, so that the engines positioned it well, while it showed users other content.

5. Blog Spam:

As any blog allows comments, it was an easy task for a spammer to use it as platforms for creating and sending spam links.

The Google Penguin update that focused on penalizing black hat SEO made such techniques widespread. At that time, SEO professionals and companies used it to attack the competition, making it fall into positions or even hide from Google.

The use of this work methodology puts in doubt the professionalism of the one who carries it out. We do not want to defend the use of these techniques but rather inform you of how they work and how we can avoid carrying them out unconsciously.

Black Hat SEO today.

Today, there are groups of hackers who continue to put into practice the techniques of Black Hat SEO, which have come a long way over the years, without a doubt, which will continue to exist, although their effects are increasingly ephemeral.

Black Hat SEO is currently used for websites that will have a short life time. For example: A website with information about the 2018 World Cup in Russia.