Choose indexing directives deliberately
noindex can remove a URL from search results once crawled. nofollow changes how link-following directives are expressed. These are not cosmetic settings.
Distinguish HTML meta from HTTP headers
A robots meta tag belongs in HTML. X-Robots-Tag is an HTTP response header and is useful for non-HTML files or server-level control.
Avoid contradictory directives
The builder flags combinations that are redundant or confusing, but server/CDN headers can still conflict with page markup.
Verify live responses
Inspect the final HTML and HTTP headers after deployment. Search engines act on what they crawl, not what was intended in a local editor.