1. Hidden Content:
Top of our list of black hat SEO techniques is hidden content. Hidden content comes in many guises but the basic principle is that within the code for the site there will be content stuffed with keywords, this content will not be visible to the end user of the site.
2. Meta Keyword Stuffing:
There are two Meta tags that are generally used to inform search engines of the content on the page. They reside between the tag of a page and when used incorrectly they can alert a search engine that a site is using spam techniques in an attempt to improve its ranking.
The meta description should be used to describe the content of your page honestly and concisely and be 1 or 2 sentences, 3 at most.
3. Meta Keywords:
Meta Keywords should be a short list of words that inform of the main focus of the page. Meta keywords have been so misused in the past that there are few if any search engines that take any heed of them.
4. Doorway or Gateway Pages:
Doorway or Gateway pages are pages designed for search engines and not for the end user. They are basically fake pages that are stuffed with content and highly optimised for 1 or 2 keywords that link to a target or landing page. The end user never sees these pages because they are automatically redirected to the target page.
5. Link Farming:
In the real world if you were to build your house in a bad neighbour hood then your house would be affected by its surroundings. The same is true of the virtual world. Link farms or free for all (FFA) pages have no other purposes than to list links of unrelated websites. They won’t provide you with any traffic and you run the risk of having your site banned for participating. Don’t participate in link farming.