It is known that 0.5-2.5% of keyword density (the number of times the keyword appears in the content divided by the number of total words in the content) is considered safe. There are issues like helping Google understand the content on your pages and website, incoming links, page …

Instead of having one highly authoritative page, you're splitting your CTR to multiple moderately relevant pages. In-house advertising creates several advantages. Duplicated content - the same content that appears on multiple unique URLs - is not welcome by search engines and can cause a serious drop in a website's rankings. As I …