vaniivan

This plugin warns you of server IP address changes, so you can take care of Search Engine Visibility settings. 
This can happen if you move your database between development, staging and production environments, or on the first deployment of your site. 
It’s bad to keep robots.txt on for production, but could also be bad if you leave the robots.txt off on staging or development, 
since the whole staging.example.com domain could be indexed by Search Engines.
<h3>External Services</h3>
This plugin makes use of the http://ipecho.net service for external IP address resolution. More info here: https://ipecho.net/developers.html

A3 Robots Warning

Warns you of server IP address changes, so you can take care of Search Engine Visibility settings.

DyadyaLesha

DL Robots.txt Позволяет редактировать содержимое вашего файла robots.txt и задавать оптимальные настройки для поисковых одним кликом мышки
Если вы хотите помочь в разработке этого плагина – добро пожаловать на <a href="https://github.com/dyadyal/dl-robots-txt" rel="nofollow ugc">github</a>

DL Robots.txt

DL Robots.txt Позволяет редактировать содержимое вашего файла robots.txt

A3 Robots Warning vs DL Robots.txt