There are various SEO practices done which are illegal as per the SEO and Google’s terms. If you use these practices, you can get penalized heavily and sometimes can even ban by search engines. Therefore, to keep your page in accordance with terms of SEO, make sure that you avoid such practices. This would be beneficial in avoiding the cost of penalties.
As per the leading SEO companies, if you are using a registered trademark as a keyword in your domain name, then that can be illegal. Therefore, you could have to face legal problems due to the use of trademarked keywords, even in Meta tags.
Keyword stuffing is also one of the illegal ways in SEO, and it is easily spotted in SEO if done on purpose. This is usually done with the motive of giving a high ranking to your content. Unfortunately, Google makes it difficult to reverse the damages once you have done this.
Doorway pages are poor-quality pages that are used explicitly for search engines instead of seen by visitors. The primary purpose of these is to emphasize specific keywords. The pages usually copy content from various other sites without any navigation menu. It is also considered highly illegal in the field of SEO.
This is also referred to as page jacking, mainly a process of copying others’ webpage or your competitor’s webpage. After copying the webpage, replacing it with your products and links is the main practice under this. It usually does not take much time to get flagged, and once it is flagged, that could lead to being banned from search engines.
Link farming is the practice of placing too many links on the page’s content. This is done with the motive of gaining link popularity. If this comes into consideration, you will be penalized heavily for doing this.