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.

adenergizer

Adenergizer helps you serve ads.txt and app-ads.txt for your WordPress website without much doing. 
It helps you create and manage ads.txt, app-ads.txt from within WordPress admin area. 
By installing and activating this plugin you’re ready to serve these files without much effort, 
as no need to manually create ads.txt and app-ads.txt on your server. Adenerngizer automatically 
serves these files for you and you can control what content is served.
With Adenergizer you can specify clear instructions to web crawlers which part of your website they are allowed to 
access and can improve transparency for your buyers. By serving ads.txt and app-ads.txt you can make sure that your 
content and products are known to search engines, so the user can easily find them. It also help protecting your data 
and content which is not meant to be visited by crawlers.

Ads.txt and App-Ads.txt – AdEnergizer

Create and edit ads.txt, app-ads.txt files from the convenience of admin dashboard.

A3 Robots Warning vs Ads.txt and App-Ads.txt – AdEnergizer