Apple’s Safari 4 beta first browser to score 100% in Acid3 test

“The latest beta of the WebKit engine that runs beneath Apple’s Safari and other browsers has achieved 100/100 score in the Acid3 test, which means that the Safari 4 beta has reached a significant milestone in terms of web standards compliance. Opera closely follows Safari while Microsoft’s Internet Explorer versions score the lowest marks,” Christian Zibreg reports for TG Daily.

“The Acid3 test is generally considered as a benchmark to determine how well a web browser follows web standards and at least as of now, Safari 4 beta is the most compliant browser. To pass the test, a browser has to use default settings, the animation has to be smooth, the score has to end on 100/100, and the final page has to look exactly, pixel by pixel, like the reference rendering,” Zibreg reports.

“The WebKit team said that the perfect score is a result of the fast layout engine and optimizations relating to the Document Object Model (DOM) and JavaScript engine,” Zibreg reports.

Full article here.


  1. From the article: “…WebKit has raised the stakes of the game, which may prompt rivals to optimize their JavaScript and layout engines and comply with web standards. The more browsers render pages the same way, the less code tweaking is required to tailor a page for a particular browser.”…

    “If JavaScript performance increases, we should see many more desktop-like web applications in the future.”

    Gee… I wonder if MicroSoft wants to get as web-complianty with IE8 as it says it does? NotSafarisIcantell.

  2. And yet on the “What Works” test, crappy old IE6 is compatible with more Websites than any other single browser.

    I’m not saying IE is good or anything like that. I’m just asking how relevant is the ACID3 test when developers still almost uniformly only test with IE.

    Firefox testing is an after thought, and Safari testing is almost never done.

    Ask a developer, “Did you test Opera, Camino, or make sure your design was within Acid3 parameters” and you get “Huh?”

  3. Google McCloud, you are right – unfortunately. The reason has little to do with how compliant the browsers are with “web standards” applied by the non-proprietary industry, but with the web-design software published and sold by MS. And, of course, IIS – the web server software they provide along with the rest of their server package. They have built in a lot of “not industry standard” “features” that work only with IE (but they will license your browser, for a price) and IIS. Looks good, except when broken, but only works for IE.
    All the designers I know (except for enterprise wonks) test both Safari and Firefox along with IE. It used to be Netscape, rather than Safari … things change. Also, many test Firefox and Safari on both platforms. Also a new model.

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