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.

Enable GZip Compression (IIS) Reduce file sizes and increase response performance by enabling GZip compression of text-based responses.

Rewrite URL as Query String Parameters (Apache) Convert URL structure to query string parameters. Use to create SEO friendly URLs.

Redirect Old Domain to New Domain (NGINX) Redirect all requests for an old domain to a new domain.

Enable GZip Compression (NGINX) Enable compressed responses using GZip to reduce bandwidth and increase performance.

Redirect All HTTP Requests To HTTPS (NGINX) Redirect all non-secure requests to use an HTTPS connection.

Reverse Proxy To Another Server (Apache) Proxy an intranet, or other, server's content through a different webserver.

Enforce Lower Case URLs (NGINX) Force URLs to lowercase, very important for SEO to avoid duplicate content penalties in search engines.

Block Specific User-agents (Apache) Block specific User-agents' requests. Useful for dealing with malicious bots.