We’ll discuss the idea of crawl depth and go over strategies that increase the likelihood that even your less popular pages get indexed. Another SEO issue to consider is getting the crawler to regularly visit less popular content within a site’s crawl budget as well, and that’s where the issue of crawl depth comes in. The term crawl depth refers to how many pages a search engine’s bot will access and index on a site during a single crawl. Recommended Reading: The Best Two Website Taxonomy Methods to Boost SEOCrawl depth is often confused with page depth. The bigger the page’s depth, the lower its chance of being crawled within the site’s crawl budget.