CCTE is a small utility to provide a way to run automated tests on Web applications. It acts like a Web browser GETing form data to different URLs, and logging output. It has two ways to understand if a CGI did OK: HTTP status, and user-definable strings for both (success and error).
The Cacheability Engine will check a URL you feed it for several things that will affect a Web cache, including web server clock skew, expires and Cache-Control headers, Last-Modified date presence, validation of LM date, Content-Length presence and more. It makes it easy to see how a cache will treat your content. There are also public engines running, so you don't have to install the software to use it for Internet-available sites.
Badge allows users to display a simple graphical "badge" that signifies membership with a particular group or project in a weblog signature. It is the digital analogue of an "I Voted" sticker, or the countless other bumper stickers given out by non-profit groups. Badge is a reasonably secure system for adding images to weblog singatures in a controlled way. IMG tags are generated dynamically by the weblog software, and since IMG tags are not normally allowed in weblog singatures, this should be pretty hard to forge. The Badge "server" generates the badge image on the fly.