Do a thorough link structure check for all your sites
If you have a lot of websites, you should check their internal linking structure to find out if they have dead ends or orphaned pages. Your pages should link to all your internal pages properly. This will allow crawlers to get to them easily and they’ll be considered more relevant to your site because you’re “endorsing” them through your links.
No internal linking is a mistake that most new webmasters make. They fail to consider the power of internal linking for boosting the rank of a new page. You’ll notice that all the major websites and blogs do internal linking. They link from one page or post to another. Most of them will also have navigation bars and site maps. These are useful to the readers but the main reason why they’re created is to allow search engine crawlers to find all the pages in your website and index them.Once indexed, they’ll become visible to search engines and you’ll start getting traffic.