Canonical + Meta Robots Checker
Review canonical references and robots directives together so you can spot conflicting indexation signals, understand what each page is communicating, and decide what needs correction.
What this tool checks
Canonical Tag Signals
Checks whether a canonical reference is present, whether its value is usable as a URL, and whether it points where you expect. Use the result to identify missing, malformed, self-referencing, or cross-domain canonical choices that deserve manual review before you change them.
Meta Robots Directives
Reads page-level robots instructions such as noindex and nofollow so you can see whether the document is asking search engines to exclude it from results or limit link following. Compare the directive with the page's intended search visibility before deciding that it is an error.
X-Robots-Tag Headers
Inspects response headers for X-Robots-Tag instructions that can affect crawl or index handling outside the HTML. This helps surface server-level directives that may conflict with, duplicate, or clarify the instructions found in the page markup.
Why Canonical and Robots Signals Need to Agree
Canonical references and robots directives solve different technical SEO problems, so they should be interpreted together rather than treated as interchangeable controls. A canonical can indicate a preferred version among similar URLs, while robots directives can request that a page not appear in search results. When those signals conflict with the page's intended role, search behavior can become harder to diagnose and maintain.
Frequently asked questions
What should a canonical tag tell search engines?
A canonical tag indicates the URL you consider the preferred version when multiple URLs contain the same or very similar content. It is a consolidation signal, not a substitute for redirects, access controls, or robots directives, so review it in the context of how the page is actually meant to be discovered and indexed.
When should I pay attention to noindex?
Pay attention whenever a page is intended to appear in search but carries a noindex directive, or whenever a page is intentionally excluded and you want to confirm that instruction is present. The directive asks search engines not to include the page in search results, so its correctness depends on the page's purpose.