Keyword Stuffing is not an optimization method at all. It’s instead a form of spam that happens when search engine spiders, like Googlebot, see keywords used excessively on your page.
Keyword stuffing is a set of activities to manipulate search engine results for a relevant keyword. These activities involve excessive keyword spamming through text or website meta tags. Google search engines downgrade websites from ranking practicing keyword stuffing.
It’s also known as ‘keyword density. The logic behind this technique is that by including “target terms” (the words or phrases people may be searching for) close to each other in their content; these words will show up more often within the SEP index and better match the person who may be looking for information about those words… But it can actually do more harm than good–in fact, Google warns users against keyword stuffing!
A site with excessive keyword usage might rank higher in SERPs (Search Engine Results Pages) in the short term, but in the long run, Google may make ranking adjustments that can negatively impact your organic search visibility.
Keyword stuffing is a common SEO mistake. I would even say it’s one of the most common issues when it comes to low-quality content. It also might be considered a webspam by Google. I highly recommend you not to use it.
There are many other types of optimization techniques you should be using, such as: optimizing your titles and headings tags, optimizing your meta-descriptions for those keywords that may help the web crawlers a bit more about what your pages are about, duplicate content vs canonicalization issues, and so on… I would rather recommend that you focus on these important issues first before trying to implement keyword stuffing.