Keyword stuffing is the practice of including an excessive number of keywords in web content in an attempt to manipulate search engine rankings. This can include adding irrelevant keywords to a page, repeating the same keyword over and over again, or hiding keywords in the background of a page.
The intention behind keyword stuffing is to make a webpage more relevant and visible to search engines, however, it is considered a black hat SEO technique and can actually harm a website's search engine ranking. Search engines use sophisticated algorithms to determine the relevance and quality of a webpage, and keyword stuffing is easily detected as a manipulation attempt. It can lead to penalties or even a ban from search engines.
Instead of stuffing keywords, it's important to focus on creating high-quality, relevant and valuable content that naturally includes keywords that are important to your audience and business. Additionally, it's important to ensure that your website is technically optimized and user-friendly.