Ariana

This is a very simple plugin that adds a “robots” meta tag to the head of your site with “noindex” in it.
The effect of the noindex robots meta tag is that search engines will not index your pages and posts at all. 
This is a better solution then the wordpress default settings option, which tells search engines to not crawl the URLs in the robots.txt. Because Google (and other search engines) sometimes still index URLs they haven’t crawled, for which they determine relevancy based on anchor text of links which lead to the specific URL.

Simple Noindex

Denis Bisteinov

Have you encountered an obstacle while creating and editing robots.txt file on your website?
Bisteinoff SEO Robots.txt is an easy-to-use plugin that helps you generate and configure a correct robots.txt file, which is essential for search engine optimization (SEO). This file defines crawling rules for search engine bots such as Google, Bing, Yahoo!, Yandex, and others.
The plugin works perfectly both if the file robots.txt has never been created or if it already exists. Once installed the plugin makes an optimized robots.txt file that includes special rules common for WordPress websites. After that you can proceed further customization specific for your own website if needed.
If the plugin detects one or several Sitemap XML files it will include them into robots.txt file.
No FTP access, manual coding or file editing is required that makes managing settings easy and convenient!
<h4>Key Features</h4>
<ul>
<li>Automatic generation of optimized robots.txt with WordPress-specific rules</li>
<li>Special rules for Google and Yandex search engines</li>
<li>Custom rules support for any search engine bot</li>
<li>Automatic sitemap detection and inclusion</li>
<li>WooCommerce compatibility with specific rules</li>
<li>Multisite support</li>
<li>Easy-to-use admin interface</li>
<li>Modern PHP architecture with namespaces for conflict-free operation</li>
</ul>

Bisteinoff SEO Robots.txt

An easy-to-use plugin that generates and configures a proper robots.txt file, essential for effective search engine optimization (SEO).

Simple Noindex vs Bisteinoff SEO Robots.txt