From Homestar Runner Wiki
The Index Page is the first page one sees when visiting the website, and offers the viewer the option to watch the Intro or go to the Main Pages. The Main Pages, which are the main menus of the site, split homestarrunner.com into 6 main categories: Toons, Games, Characters, Downloads, Store, and Email. A few of these categories host subcategories such as Strong Bad Email, and Teen Girl Squad.
The website also hosts several subdomains, such as podstar.homestarrunner.com, which hosts the menu and files for Podstar Runner. There are also a few folders within the domain, such as the folders housing Stinkoman 20X6 and Strong Sad's Lament.
Hidden among the website are various secret pages, ranging from toons never added to the main list, pages intended to be found, and unfinished toons. There have also been secret pages removed after fans found them, such as If I Ran the Camera.
 Filename Conventions
Many of the page files (.html files) and Flash files (.swf files) have consistent naming conventions. For example, the page file for a Teen Girl Squad issue is "tgsX.html", where X is the issue number. The same goes for Strong Bad Emails ("sbemailX.html", with a handful of exceptions), and Marzipan's Answering Machine (answerX.html).
Sometimes, the page file relates to the toon. For example, A Jorb Well Done is "cantsayjob.html". Usually, the Flash file will have the same filename as the html page, but there are some exceptions. If this is not the case, the Flash file may be found by viewing the page source and reading the filename from the line that includes "
<PARAM NAME=movie VALUE="FILENAME.swf">".
The domain is currently hosted by CaroNet, and was registered on December 6th, 1999 by Harmless Junk, Inc. Its IP is 188.8.131.52. The website used to be hosted by Yahoo!, but it was so popular that it had to be moved. It was hosted by Sagonet until sometime around October 2006.
 Other Domains
- Homestarrunner.com does not pass the W3C Validation Test, at least not on many of its pages. This is mainly due to no DOCTYPE and because it uses the EMBED HTML Object (Which is is not valid HTML 4.01, you must use flash satay in order to bypass validation errors.)