noindex
noindex is an instruction in a page's code telling search engines not to include it in results.
In a little more detail
It is a common accidental cause of disappearance, usually left behind after a site launch. It is also the tag that most often blocks a page nobody realises is blocked.
Related terms
- Index: The index is the searchable copy of the web a search engine keeps. If a page is not in it, that page cannot appear in results.
- robots.txt: robots.txt is a plain text file at the top level of a website that lists which automated visitors are allowed in and which are not.
See it on your own site
The scan reads your site the way AI search does and reports where you stand on this and sixteen other checks.