Oh oh!: Warning!: Your loading time is much too high! Your chances of indexing this page in the major search engines is slim and, unless your viewers have a good reason to wait, most will move on before your page has finished loading
The heart of the site is the Combo Tester, which allows web developers to see how different color combinations work together on the screen. <- as many as you want
Not knowing how fast Cufón could render when given a lot of text, I put a test together. PHP renders out a bunch of random text in blocks ranging from 10 characters to 1,000,000 characters. Then Cufón goes to task on each, in sequence. JS tells you how long it takes. Try it out here, but be advised it can crash your browser.
At 100,000 characters, FF3 threw "A script is running slow, blah blah" messages. IE7 just crashed. Safari 4 hung in there till 1,000,000 but then it gave up. It looks like Apple's claims about Safari 4's speed have some truth. I didn't test any of the past generation of browsers, I may go back and add them later.
Choose the request method, customize headers and POST parameters, add basic authorization, and even follow redirects. Then view the nicely formatted request and response.
It's the perfect tool for testing APIs. Just enter a URL and click send.
WebDigr provides free information to webmasters about their websites and competitors'. It collects website information and statistics, analyze them and translates into several simple and measurable metrics. WebDigr uses more than 10 different sources for its website data input. The numbers you see on WebDigr are estimate results and based on both widely accepted calculation methods and WebDigr own unique calculation methodology."
Adobe BrowerLab gives you the ability to preview and test your websites in multiple browsers and operating systems. Since building a website to be cross-browser compatible is one of the more annoying aspects of web design, this should be a valuable web app to all of us.