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'.
Enable GZip/DEFLATE Compression (Apache) Enable compressed responses using GZip or Deflate to reduce bandwidth and increase performance.
Add Caching for Static Assets (Apache) Add caching directives that browsers will use to cache static assets on the client side.
Redirect Default Document to Directory (Apache) Redirect all requests to default documents to their parent directory URL. Important SEO tactic to avoid duplicate content penalties.
Dynamic robots.txt (Apache) Rewrite requests for robots.txt to a dynamic file which generates robot directives.
Rewrite URL as Query String Parameters (Apache) Convert URL structure to query string parameters. Use to create SEO friendly URLs.
Add/Remove Trailing Slash (Apache) Add or remove the trailing slash in URLs to enforce consistent URL structure, good for SEO.
Enforce Lower Case URLs (Apache) Force lowercase URLs, especially important for SEO on Windows-based servers, which are case-insensitive.
Reverse Proxy To Another Server (Apache) Proxy an intranet, or other, server's content through a different webserver.
Block Specific User-agents (Apache) Block specific User-agents' requests. Useful for dealing with malicious bots.
