waybackpack : Waybackpack is a command-line tool that lets you download the entire Wayback Machine archive for a given URL.
Which loads faster? : Pages compete head-to-head in your browser to see who's fastest!
Sympl : Sympl is a collection of open-source scripts and templates which allow you to automatically and efficiently configure your website and email on a virt...
PURLs are persistent URLs, they provide permanent addresses for resources on the web.