What this extension does:
With this extension you can edit the file robots.txt.

Features:

• Editing the file robots.txt;
  
• No core files are changed or replaced.

Demo:
Admin:
https://oc4.secretsergey.com/admin/
Username: demo
Password: demo

How to install (4.x):

1. Login to your OpenCart Administration panel;
   
2. Go to Extensions > Installer and upload zip file suited for your OpenCart version;
   
3. After successful installation, find the extension in the list below and install it;
   
4. Go to Extension > Extensions and select "Other" on dropdown list;
   
5. Find the extension in the list below and install it.

Support:
Email - sergey@secretsergey.com
Telegram - t.me/secretsergey
This extension is free and distributed "as is". Support for free extensions is paid.

I will be grateful for the evaluation and feedback on the extension page.
Thanks for your choice!