# HTML5test
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> Source: https://en.wikipedia.org/wiki/HTML5test
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Web application for evaluating a browser's implementation of HTML5
HTML5Test.com HTML5Test.com on Tizen 2 as of 27 February 2013. Type of site Software testing Available in English Owner Niels Leenheer Created by Niels Leenheer URL html5test.com[1] html5test.opensuse.org html5test.co Commercial No Launched 12 March 2010; 16 years ago (2010-03-12) Current status Online, with a notice of outdatedness Content license MIT License[2] Written in JavaScript
**HTML5test.com** is a discontinued[3] [web app](/source/Web_app) for evaluating a [web browser](/source/Web_browser)'s implementation some of common [web standards](/source/Web_standards), including [HTML5](/source/HTML5), [Web SQL Database](/source/Web_SQL_Database), [Scalable Vector Graphics](/source/Scalable_Vector_Graphics) (SVG), and [WebGL](/source/WebGL).[4][1]
The test suite was developed by Dutch web programmer Niels Leenheer and published in March 2010.[5] The app returns an integer score out of a possible 555 points. The point total has changed multiple times over the software's evolution. Leenheer introduced the present scoring system as part of a major redesign of the test introduced in November 2013.[6] On 9 January 2024, Leenheer announced a problem with the app's server and added that he has no incentives to work on it anymore.[3] Since then third-party mirrors have been set up at [html5test.co](https://html5test.co) and [html5test.opensuse.org](https://html5test.opensuse.org/).
HTML5Test.com evaluates the browser's support for [Web storage](/source/Web_storage), the [W3C Geolocation API](/source/W3C_Geolocation_API), HTML5-specific [HTML elements](/source/HTML_element) (including the [canvas element](/source/Canvas_element)), and other features.[7][8] It does not evaluate a browser's conformance to other web standards, such as [Cascading Style Sheets](/source/Cascading_Style_Sheets), [ECMAScript](/source/ECMAScript), or the [Document Object Model](/source/Document_Object_Model). Conformance testing for those standards is within the purview of [Acid3](/source/Acid3), an automated test published by [Ian Hickson](/source/Ian_Hickson) in 2008.[9] Similarly, Acid3 does not evaluate a browser's HTML5 conformance. The test scope of HTML5Test.com and that of Acid3 are mutually exclusive.
Dekstop browsers scores, html5.test.co[10] Browser Version Score Google Chrome 68 528 Opera 45 518 Firefox 60 497 Edge 18 496 Safari 11.2 477 Internet Explorer 11 312
## See also
- [Acid1](/source/Acid1)
- [Acid2](/source/Acid2)
- [Acid3](/source/Acid3)
## References
1. ^ [***a***](#cite_ref-:0_1-0) [***b***](#cite_ref-:0_1-1) Brinkmann, Martin (6 June 2010). ["HTML5 Test Your Web Browser"](http://www.ghacks.net/2010/06/06/html5-test-your-web-browser/). *gHacks Technology News*. Retrieved 10 July 2014.
1. **[^](#cite_ref-2)** Leenheer, Niels (12 January 2015). ["LICENSE"](https://github.com/WebPlatformTest/HTML5test/blob/version-9.0/LICENSE). *WebPlatformTest/HTML5test repo* – via [GitHub](/source/GitHub).
1. ^ [***a***](#cite_ref-:1_3-0) [***b***](#cite_ref-:1_3-1) @html5test (January 9, 2024). ["The old html5test.com site is down maybe forever"](https://twitter.com/html5test/status/1744850900164686062) ([Tweet](/source/Tweet_(social_media))) – via [X (formerly Twitter)](/source/X_(formerly_Twitter)).
1. **[^](#cite_ref-4)** Leenheer, Niels. ["HTML5test Frequently Asked Questions"](http://html5test.com/about.html). *HTML5test.com*. Niels Leenheer. Retrieved 10 July 2014.
1. **[^](#cite_ref-5)** [Zeldman, L. Jeffrey](/source/Jeffrey_Zeldman) (1 August 2010). ["HTML5 Test"](http://www.zeldman.com/2010/08/01/html5-test/). *Zeldman.com*. [ISSN](/source/ISSN_(identifier)) [1534-0309](https://search.worldcat.org/issn/1534-0309). Retrieved 10 July 2014.
1. **[^](#cite_ref-6)** Leenheer, Niels (13 November 2013). ["The new HTML5test is here!"](https://web.archive.org/web/20140626033522/http://blog.html5test.com/2013/11/the-new-html5test-is-here/). *blog.html5test.com*. Archived from [the original](http://blog.html5test.com/2013/11/the-new-html5test-is-here/) on 26 June 2014. Retrieved 12 July 2014.
1. **[^](#cite_ref-7)** [Staff writer](/source/Staff_writer). ["Test Your Browser for HTML5 Compatibility"](https://web.archive.org/web/20160304022737/http://cybernetnews.com/html5-test/). *CyberNet News*. Archived from [the original](http://cybernetnews.com/html5-test/) on 4 March 2016. Retrieved 10 July 2014.
1. **[^](#cite_ref-8)** Zukerman, Erez (8 August 2010). ["Test your browser's HTML5 prowess with the HTML5 test"](https://web.archive.org/web/20190426061727/http://downloadsquad.switched.com/2010/08/08/test-your-browsers-html5-prowess-with-the-html5-test/). *Switched*. [AOL](/source/AOL). Archived from [the original](http://downloadsquad.switched.com/2010/08/08/test-your-browsers-html5-prowess-with-the-html5-test/) on 26 April 2019. Retrieved 10 July 2014.
1. **[^](#cite_ref-9)** ["Acid3: Putting Browser Makers on Notice, Again"](http://www.webstandards.org/press/releases/2008-03-03/) (Press release). [Web Standards Project](/source/Web_Standards_Project). 3 March 2008. Retrieved 10 July 2014.
1. **[^](#cite_ref-10)** ["how well does your browser support HTML5?"](https://html5test.co/results/desktop.html). *HTML5 test*. [Archived](https://web.archive.org/web/20250403205804/https://html5test.co/results/desktop.html) from the original on 2025-04-03. Retrieved 2025-04-21.
## External links
- [Official website](https://html5test.com/) - [Third-party mirror html5test.co (doesn't support all features of the original)](https://www.html5test.co) - [Third-party mirror html5test.opensuse.org](https://html5test.opensuse.org/)
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Adapted from the Wikipedia article [HTML5test](https://en.wikipedia.org/wiki/HTML5test) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/HTML5test?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.