Where you place your file is more important than you think. File type and size can affect whether your robots.txt file is not read. A disallow only prohibits reading non-index content (and is not focus on deindexing in the first place).
If the content is not read, then the HTML directives are obviously ignor
5. The wording of URLs is simple and very concrete, but their reading rules are not as intuitive as they might seem.
6. The alternatives to avoid crawling/indexing through robots.txt or meta-robots are not equally powerful.
All directives not cover by the robots definition are ignor
8. What happens when Google can’t access or finds strange things when accessing your robots file?
9. Blocking JS and CSS files can cause problems and is even frown upon by the search engine.
10. Google enters 400 content but twitter data not if it is block.
BONUS. It is possible to send a noindex from your server by creating a kind of robots.txt but for noindex and nofollow.
What exactly is robots.txt?
Robots.txt is a file intend to tell search engines which URLs it is allow to visit and which it should avoid. The way it works is simple: before visiting a site’s URL, a robot should look in this file to determine whether it should go there to various teams of people fully collect information, or whether, on the contrary, the owner of the site prefers that it not enter.
In short, these are just instructions
That any robot can ignore if it wants to, but which Google’s robot pays a lot of attention to (although not 100%).
The robots.txt file is one of those
Technical topics that every SEO must know enough about to be able to manipulate it successfully. That’s why Google itself tells us in its support how we can create our own. Many times we will declare access to everyone (user-agent:*) and sometimes tg data we will refer to a particular robot or crawler (user-agent: googlebot).