User-agent: sentibot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: SemrushBot
Disallow: /

# Based on https://facebook.com/robots.txt
User-agent: Bingbot
User-agent: Googlebot
Allow: /$
Allow: /index.php
Allow: /register.php
Allow: /faq.php
Allow: /forumdisplay.php
Allow: /showthread.php
Allow: /announcement.php

User-agent: *