Acid1

Last updated
Acid1
Acid1 reference.png
The "reference rendering" for Acid1
Type of site
Web standards test
Available in English language
OwnerThe World Wide Web Consortium
Created byTodd Fahrner
URL Acid1
CommercialNo
RegistrationNo
LaunchedJanuary 26, 1999
Current statusOnline
Example of a failed Acid1 test. Lobo-0.98.4-linux.png
Example of a failed Acid1 test.
Easter egg in Internet Explorer 5 for Mac About Tasman IE5 Mac OS X.png
Easter egg in Internet Explorer 5 for Mac

Acid1, originally called the Box Acid Test, is a test page for web browsers. It was developed in October 1998 and was important in establishing baseline interoperability between early web browsers, especially for the Cascading Style Sheets 1.0 specification. As with acid tests for gold which produce a quick and obvious assessment of the quality of a piece of metal, the web acid tests were designed to produce a clear indication of a browser's compliance to web standards.[ citation needed ]

Contents

History

Acid1 tests many features on one page against a reference image. Acid1 was developed by Todd Fahrner, who was frustrated with the lack of stringent tests to improve browser interoperability. After looking at tests developed by Braden McDaniel that used reference renderings to clarify the intended result, Fahrner developed a comprehensive test that resulted in a quirky-looking graphic. In 1999, the test was incorporated into the CSS1 test suite. [1] The text used in Acid1 is an allusion to T. S. Eliot's poem The Hollow Men. Acid1 is included as an offline Easter egg in Internet Explorer 5 for Mac OS, accessible by typing 'about: tasman', with the text replaced by the names of the developers. [2]

By early 2008, all major browsers passed the Acid1 test. [3]

Acid1 has served as inspiration for Acid2 and Acid3.

See also

Related Research Articles

<span class="mw-page-title-main">Netscape Navigator</span> Web browser by Netscape released in 1994

Netscape Navigator is a discontinued proprietary web browser, and the original browser of the Netscape line, from versions 1 to 4.08, and 9.x. It was the flagship product of the Netscape Communications Corp and was the dominant web browser in terms of usage share in the 1990s, but by around 2003 its user base had all but disappeared. This was partly because the Netscape Corporation did not sustain Netscape Navigator's technical innovation in the late 1990s.

The Book of Mozilla is a computer Easter egg found in the Netscape, Mozilla, SeaMonkey, Waterfox and Firefox series of web browsers. It is viewed by directing the browser to about:mozilla.

Web standards are the formal, non-proprietary standards and other technical specifications that define and describe aspects of the World Wide Web. In recent years, the term has been more frequently associated with the trend of endorsing a set of standardized best practices for building web sites, and a philosophy of web design and development that includes those methods.

This is a comparison of both historical and current web browsers based on developer, engine, platform(s), releases, license, and cost.

Trident is a proprietary browser engine for the Microsoft Windows version of Internet Explorer, developed by Microsoft.

<span class="mw-page-title-main">Internet Explorer for Mac</span> Web browser for Apple computers developed by Microsoft from 1996 to 2003

Internet Explorer for Mac was a proprietary web browser developed by Microsoft for the Macintosh platform to browse web pages. Initial versions were developed from the same code base as Internet Explorer for Windows. Later versions diverged, particularly with the release of version 5, which included the cutting-edge, fault-tolerant and highly standards-compliant Tasman layout engine.

about is an internal URI scheme implemented in various Web browsers to reveal internal state and built-in functions. It is an IANA officially registered scheme, and is standardized.

The blink element is a non-standard HTML element that indicates to a user agent that the page author intends the content of the element to blink. The element was introduced in Netscape Navigator but is no longer supported and often ignored by modern Web browsers; some, such as Internet Explorer, never supported the element at all.

<span class="mw-page-title-main">Acid2</span> Online HTML rendering test

Acid2 is a webpage that test web browsers' functionality in displaying aspects of HTML markup, CSS 2.1 styling, PNG images, and data URIs. The test page was released on 13 April 2005 by the Web Standards Project. The Acid2 test page will be displayed correctly in any application that follows the World Wide Web Consortium and Internet Engineering Task Force specifications for these technologies. These specifications are known as web standards because they describe how technologies used on the web are expected to function.

<span class="mw-page-title-main">Internet Explorer 5</span> Web browser for Windows released in 1999

Microsoft Internet Explorer 5 (IE5) is the fifth, and by now, discontinued, version of the Internet Explorer graphical web browser, the successor to Internet Explorer 4 and one of the main participants of the first browser war. Its distribution methods and Windows integration were involved in the United States v. Microsoft Corp. case. Launched on March 18, 1999, it was the default browser in Windows 98 Second Edition, Windows 2000 and Windows ME and can replace previous versions of Internet Explorer on Windows 3.1x, Windows NT 3.51, Windows 95, Windows NT 4.0 and the original release of Windows 98. Although Internet Explorer 5 ran only on Windows, its siblings Internet Explorer for Mac 5 and Internet Explorer for UNIX 5 supported Mac OS X, Solaris and HP-UX.

<span class="mw-page-title-main">Internet Explorer 4</span> Web browser for Windows released in 1997

Microsoft Internet Explorer 4 (IE4) is the fourth, and by now, discontinued, version of the Internet Explorer graphical web browser that Microsoft unveiled in Spring of 1997, and released on September 22, 1997, primarily for Microsoft Windows, but also with versions available for the classic Mac OS, Solaris, and HP-UX and marketed as "The Web the Way You Want It".

<span class="mw-page-title-main">Mozilla Application Suite</span> Discontinued Internet suite

The Mozilla Application Suite is a discontinued cross-platform integrated Internet suite. Its development was initiated by Netscape Communications Corporation, before their acquisition by AOL. It was based on the source code of Netscape Communicator. The development was spearheaded by the Mozilla Organization from 1998 to 2003, and by the Mozilla Foundation from 2003 to 2006.

<span class="mw-page-title-main">Netscape (web browser)</span> Family of web browsers

The Netscape web browser is the general name for a series of web browsers formerly produced by Netscape Communications Corporation, which eventually became a subsidiary of AOL. The original browser was once the dominant browser in terms of usage share, but as a result of the first browser war, it lost virtually all of its share to Internet Explorer due to Microsoft's anti-competitive bundling of Internet Explorer with Windows.

<span class="mw-page-title-main">Netscape Navigator 9</span> Last version of the classic web browser, essentially rebranded Firefox

Netscape Navigator 9 is a discontinued web browser that was produced by the Netscape Communications division of parent AOL, first announced on January 23, 2007. It was the ninth major release of the Netscape line of browsers. After AOL outsourced the development of Netscape Browser 8 to Mercurial Communications in 2004, Netscape Navigator 9 marked the first Netscape browser to be produced in-house since the Netscape 7 suite. It also saw the return of the classic Navigator name, which was previously used during Netscape's heyday between versions 1.0 and 4.08 in the 1990s. Netscape Navigator 9 is based on Mozilla Firefox 2.0.

<span class="mw-page-title-main">Internet Explorer 8</span> Web browser for Windows released in 2009

Windows Internet Explorer 8 (IE8) is the eighth and, by now, discontinued version of the Internet Explorer web browser for Windows. It was released by Microsoft on March 19, 2009, as the successor to Internet Explorer 7. It was the default browser in Windows 7 and Windows Server 2008 R2.

<span class="mw-page-title-main">Acid3</span> Online HTML rendering test

The Acid3 test is a web test page from the Web Standards Project that checks a web browser's compliance with elements of various web standards, particularly the Document Object Model (DOM) and JavaScript.

<span class="mw-page-title-main">CSS</span> Style sheet language

Cascading Style Sheets (CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.

<span class="mw-page-title-main">HTML5test</span> Web application for evaluating a browsers implementation of HTML5

HTML5test is a web application for evaluating a web browser's accuracy in implementing the web standards HTML5 and Web SQL Database, as well as the WebGL standard.

References

  1. CSS1 Test Suite: 5.5.26 clear
  2. Internet Explorer Easter Egg - IE5 Mac Team, The Easter Egg Archive, 2000-06-19
  3. "Acid Test Results on Popular Browser". SciActive. Archived from the original on 2008-05-05. Retrieved 2008-05-05.