Noindex Alerter is a Chrome extension that will alert you when you visit a website that is noindexed, as well as provide you with the corresponding message that you need to be aware of. It allows you to have a full look at the noindex tag and the robots.txt file that is on the website.

The process is simple. First, click the 'Show' button. If the website has noindex tags or robots.txt file, then the extension will notify you, you will also be able to see it in your browser.

It is important that your browser has Google Chrome in its list of installed browsers, so that it is fully compatible.

If your Chrome version is not in the list, or your device does not have Google Chrome, then the extension will not work.