Acid3 is a web browser benchmark tool to test whether the web browser meets web standard compliance. This web browser benchmark tool is easy to use and very handy. Acid3 is developed by The Web Standards Project to test web browser standard compliance. The compliance criteria require that the test is run with a browser’s default settings. Acid3 tests range from 0-100. If the test is successful, the results of the Acid3 test will display a gradually increasing fraction counter with colored rectangles in the background. The number of subtests passed will indicate the percentage that will be displayed on the screen.
Acid3 test is a web test page from the Web Standards Project that checks the performance of a web browser regarding the issue of following certain selected elements from web standards, especially relating to the Document Object Model (DOM) and JavaScript.
Parts of the following standards are tested by Acid3:
- HTTP 1.1 Protocol
- DOM Level 2 Views
- HTML 4.01 Strict
- DOM Level 2 Traversal (subtests 1-6)
- DOM Level 2 Range (subtests 7-11)
- Content-Type: image/png; text/plain (subtests 14-15)
- <object> handling and HTTP status codes (subtest 16)
- DOM Level 2 Core (subtests 17, 21)
- ECMAScript GC (subtests 26-27)
- DOM Level 2 Events (subtests 17, 30-32)
- CSS Selectors (subtests 33-40)
- DOM Level 2 Style (subtest 45)
- DOM Level 2 HTML (subtest 60)
- Unicode 5.0 UTF-16 (subtest 68)
- Unicode 5.0 UTF-8 (subtest 70)
- HTML 4.0 Transitional (subtest 71)
- SVG 1.1 (subtests 74, 78)
- SMIL 2.1 (subtests 75-76)
- SVG 1.1 Fonts (subtests 77, 79)
- ECMAScript Conformance (subtests 81-96)
- Data URI scheme (subtest 97)
- XHTML 1.0 Strict (subtest 98)
Firefox 4 Acid3 Result:
Google Chrome 12 Acid3 Result:
Internet Explorer 9 Acid3 Result:
From the test results Chrome 12 got the perfect score, Firefox 4 came 2nd and Internet Explorer 9 came 3rd. I like to use Google Chrome and Firefox in my everyday life as a web developer and I find them fast and stable.
You can find more test results from the Acid3 Wikipedia page or test it yourself at Acid3 test page.