Detailed Explanation of robots.txt and Robots META Tags

For website administrators and content providers, there are sometimes parts of a site that they do not wish to be crawled by robots and made public. To address this issue, the ROBOTS development community has provided two solutions: one is the robots.txt file, and the other is the Robots META tag.

### 1. What is robots.txt?

robots.txt is a plain text file. By declaring sections of the website in this file that should not be accessed by robots, either part or all of the website's content can remain unindexed by search engines, or search engines can be instructed to index only specified content.