Acid3 Browser Test Now Live

by Karthik on January 31, 2008 · 12 comments


Ian Hickson, the Google Employee was assigned the job of working on the next generation Acid test has completed his work and the Acid3 test is live at its new home The Acid test is a test which we all use to measure a Web Browser’s adherence to standards. Read more about Acid tests on this wikipedia page.

Unlike the first acid test, which focused on the box model, and the second acid test, which covered a broad variety of basic HTML and CSS features, Acid3 covers 100 of the nooks and crannies of HTTP, HTML, CSS, ECMAScript, SVG and XML, all through the medium of DOM scripting, a critical requirement for any modern web application.

Ian Hickson wrote 90 tests while the other 10 tests were written by web developers and browser vendors. The Acid3 test assumes much importance after the team behind IE8 recently allowed that it clears the Acid2 test. The IE team has said that a special HTTP header will be required for the browser to clear the Acid2 test. Whether or not, such HTTP headers are required for the Acid3 test remains a big question..

I have begin my preliminary testing on all the popular browsers operating in default settings, and I will update this post with the results sometime tomorrow. Until then I suggest you perform the Acid3 test yourself and see how you fare…


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{ 10 comments… read them below or add one }

octavian February 1, 2008 at 4:12 am

i am using safari, version 3.0.4 ( on a mac ) and i have scored 40 out of 100. the animation was not smooth at all. in firefox ( version ) i have scored 50 out of 100 ( no smooth animation either ).


Vinitneo February 1, 2008 at 7:14 am

Firefox 3 should pass this test.


Kostya February 1, 2008 at 8:11 am

Wow, this test is hard for browsers. This is how mine did under Vista.

Opera 9.6 beta (latest build): 60/100
Firefox 3 Beta 2: 56/100
Internet Explorer 7: completely failed.


Kostya February 1, 2008 at 8:11 am

*Opera 9.5 beta


Karthik Kastury February 1, 2008 at 2:31 pm

The weird thing is that, I’m getting different results everytime I run the test on the same browser..


Rahul Ghai February 2, 2008 at 4:50 pm

With Firefox 3.0beta3pre (minefield) its a slight improvement but still a pathetic total of 58. Weirdly the colors aren’t being displayed : )


GranitW February 11, 2008 at 8:39 am

So far Safari is in the lead for me on the Mac with 64 points. Firefox 3 has 56, Opera 9.5 has 60.


ktx February 22, 2008 at 6:29 am

it will probably take IE8 10 years to pass this one :) ))


spuffler April 1, 2008 at 2:59 am

Problem is, almost nobody leaves their browser at ‘default’ settings.


Spuffler May 3, 2008 at 7:46 am

Ok, I forgot to ask…. “If my browser is failing specific tests that only Internet Explorer can pass, failing because the extensions were added to normal HTML by Microsoft’s insistence, is that necessarily a bad thing?”

We tend to forget that Microsoft web suites can create web pages that only Internet Explorer can proper interpret.


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