Orphan pages are URLs that have no or barely any internal links pointing to them from other pages on the same website. They are hard for users and search engines to find.
An is a URL that exists and is often known but is not properly integrated into . It may appear in the , in Google Search Console, in analytics or in old campaigns, yet no internal link on the website itself leads to it.
Typical causes include new blog articles that were never linked, leftover campaign landing pages, products that disappeared from categories, or URLs forgotten after a relaunch.
An orphan page is not automatically bad. It becomes problematic when it is , has impressions or backlinks, or would be topically important. Deliberately isolated pages such as thank-you, login or checkout pages are usually uncritical and should often carry noindex. Real orphan pages cannot be found with a simple alone; they require matching crawl data against the sitemap, Search Console, analytics, log files and backlink data.