HTML5 Test Suite Conformance Results

“Interoperability is the ability of two or more systems or components to exchange information and to use the information that has been exchanged.”


Interoperability is important to web designers. Good test suites drive interoperability. They're a key part of making sure web standards are implemented correctly and consistently. More tests encourage more interoperability.

The HTML5 Test Suite Results aims to help implementers write applications that support HTML5. In no way are these conformance tests to be construed as providing certification or branding of HTML5 implementations. The only claim that could be made is that a particular implementation is conformant to a particular version of the HTML5 Test Suite.

The HTML5 Test suite is still being developed. The number of tests and the results on these tests will change.

The results in this document may be updated, replaced or obsoleted by others documents at any time.

It is inappropriate to cite those results as other than work in progress and unstable.

Below is the results obtained when using the approved HTML5 tests that have been agreed upon by the HTML WG as valid per the HTML5 specification. The tests can be run and inspected individually using our test runner, see the test harness. If you have feedback about the tests please send email to public-html-testsuite@w3.org list.

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This is the detailed results across the userAgents