How does a balance scale work
The HTML5 test score is an indication of how well your browser supports the HTML5 standard and related specifications. Find out which parts of HTML5 are supported by your browser today and compare the results with other browsers.
The HTML5 test does not try to test all of the new features offered by HTML5, nor does it try to test the functionality of each feature it does detect. Despite these shortcomings we hope that by quantifying the level of support users and web developers will get an idea of how hard the browser manufacturers work on improving their browsers and the web as a development platform.
The score is
calculated by testing for the many new features of HTML5. Each feature is worth one or more points. Apart from the main HTML5 specification and other specifications created the W3C HTML Working Group or WHATWG, this test also awards points for supporting related drafts and specifications.
Please be aware that although the HTML5 specification is now an official recommendation, other specifications that are being tested are still in development and could change before receiving an official status. In the future new tests will be added for new specifications and existing tests will be updated when the specifications change.
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This will allow us to spend more time on HTML5test.com and acquire more devices for our testing lab.Source: html5test.com