Seasonality is something that most businesses deal with on an annual basis. Whether it's actual physical seasons or holidays, different times of year bring unique needs and demands. This is even true with something as technical as SEO. We account for seasonality in almost every other aspect of business, so why wouldn't we think about it regarding SEO? Seasonal SEO isn't all that different from traditional SEO - it just takes specific time periods into account. There are a couple different types of seasonal SEO.