Google does not read or use the content within your HTML comments for Google Search or ranking purposes. Google’s John Mueller confirmed this once again saying, “Googlebot doesn’t understand your HTML comments.”
John said this on Reddit after he was asked about putting content in the HTML comments so that Google can read that content, since the website was lacking content in general.
Here was the question:
It goes back to Google saying that you should put content on your pages, not just in your images.
John Mueller replied:
This is not new, we covered that Google ignores links in HTML comments a few years ago.
Forum discussion at Reddit.
