Question 1

What does this Noindex Checker actually check?

Accepted Answer

The tool checks five signals that affect Google indexing: (1) HTTP status code — 4xx/5xx pages won't be indexed. (2) X-Robots-Tag HTTP header — a server-level noindex directive. (3) tag — the most common noindex method. (4) tag — Google-specific meta override. (5) robots.txt — whether Googlebot is blocked from crawling the URL entirely. All five are checked simultaneously and a verdict is determined.

Question 2

How accurate is this compared to checking Google directly?

Accepted Answer

This tool checks exactly the same signals Google reads when it crawls a page. Google's indexing decisions are based on these signals — X-Robots-Tag headers, meta robots tags, and robots.txt rules. What we cannot check is whether Google has already crawled and cached the page, or whether it's been manually removed via Search Console. For that, use Google Search Console's URL Inspection tool.

Question 3

What is the difference between noindex and robots.txt blocking?

Accepted Answer

They work differently. A noindex directive (in a meta tag or X-Robots-Tag header) tells Google it can crawl the page but must not add it to the index. A robots.txt Disallow rule tells Google not to crawl the URL at all — but Google may still show the URL in search results based on external links, even without crawling it. Noindex is the more reliable way to remove a page from search results.

Question 4

What is the X-Robots-Tag header?

Accepted Answer

X-Robots-Tag is an HTTP response header that works exactly like a meta robots tag, but is set at the server level rather than in the HTML. It's useful for non-HTML files (PDFs, images) that can't contain meta tags, and for applying noindex rules to entire sections of a site via server config.

Question 5

Why does the tool send requests as Googlebot?

Accepted Answer

We use a Googlebot User-Agent string so the page responds as it would to Google's actual crawler. Some servers, CDNs, and caching layers serve different content or headers to different user agents — including different robots directives. Using the Googlebot user agent gives the most accurate result.

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