My job as a web developer often consists of finding ways that I can break the site. I want to know if there are potential problems, so that the can be fixed.
To do this job, I use tools such as XHTML and CSS2 Validators. They tell me if my code is up to standards.
I recently came across a posting by Pam Blackstone that talked about a website called “The Scrutinizer.” It sounded like it really looks at a website with a finetoothed comb. So, I decided to investigate it for myself. I think you will really like what you find there. If you are into testing your websites, this could be an indespensable tool.