Rewrite URL as Query String Parameters (Apache) Convert URL structure to query string parameters. Use to create SEO friendly URLs.
Block Specific User-agents (Apache) Block specific User-agents' requests. Useful for dealing with malicious bots.
Remove File Extensions From URLs (Apache) Simplify URLs slightly by removing file extensions. Used to tidy up URLs a bit, not to 'cloak the technology in use'.
Add Caching for Static Assets (Apache) Add caching directives that browsers will use to cache static assets on the client side.