Square Bracket Hack Prevention

SpiderBlocker will block most common bots that consume bandwidth and slow down your blog.

This plugin makes it possible to override php settings.

Speed up WordPress with browser caching. Automatically adds expiry headers for images, CSS, JS & fonts via .htaccess Zero config (Apache only)

Simple editor htaccess file without using FTP client.

Blocks failed attempted IPs in htaccess

Add or Remove Www lets you easily configure your WordPress site to always (or never) use the www. subdomain in all links of the posts and pages.

Remove Feed Links is a simple plugin for removing feed links from the head of your web site.

Modifies robots.txt to allow Googlebot access JS and CSS files.

The Keyword Counter & Density Calculator plugin calculates how many times and how commonly each keyword is used in a post or a page.

Site Language Definition is a simple plugin for forcing the web browser to know what language your site is in.

Allows you to have one landing page, with different versions depending on the keyword -- so you can show each visitor a customized version of it!