What’s cross-browser testing?

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Cross-browser testing is the process by which a website or application developer ensures that a particular page or program runs correctly in multiple web browsers. This process is essential for developers, as no single browser is used by the entirety of Internet users. Developers who want to ensure that the largest possible segment of Internet users can view and successfully use the website or application they have produced should run these tests on a regular basis. Cross-browser testing can be done in a number of ways and can involve viewing a web page or application in different browsers or using a program that checks a page across multiple browsers and displays the results of the test.

The basic purpose of cross-browser testing is to ensure that a program is compatible with multiple web browsers. A web browser is a computer program used to browse websites on the Internet. Popular web browsers include Mozilla Firefox®, Microsoft Internet Explorer® and Google Chrome®, although there are many other web browsers that Internet surfers can use. Because these different programs use different source code and can perform different functions when a web page loads, cross-browser testing is used to ensure that all features of a website or online application work across multiple browsers.

Cross-browser testing not only ensures that site layouts and functions work well in different browsers, but it can be used to test a site with different versions of popular browsers. Many of these browsers are updated fairly regularly which means that multiple users of the same program may be using different software versions. As new features are added and the coding changes from one version to another, it is often important for a website developer to ensure that their sites work with each new version and remain compatible with older but still commonly used versions.

There are several ways a website or application developer can test across multiple browsers. One of the simplest methods used is for a developer to simply navigate their site using different browsers. While this can be a comprehensive method, it is also time-consuming, requiring one or more members of a development team to test each site and make sure that every feature, link, and format is compatible across browsers. There are also software programs that can be used for cross-browser testing, where a user enters the address of a website or application, the program checks for compatibility using different browsers, and then displays any errors or problems it encounters while the test.

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