Assuming you are referring to how often website owners should update their content, the answer may vary depending on who you ask. Some experts recommend updating content weekly or even daily, while others say it depends on the type of website and business. For example, a news site would need to update much more frequently than a site that sells products that don't change often.
As a general rule of thumb, most websites could benefit from adding new content at least once a month. This keeps things fresh for regular visitors and also helps with search engine optimization (SEO) by giving the search engines something new to index. Of course, there is no hard and fast rule - ultimately it's up to the website owner to decide how often to update their site.