Validating a page
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Agileload - Load test tool from Agile Load SA for testing all types of web and mobile applications.
A script storyboard provides a graphical view of test scenarios; the scripting interface enables script customization.
They include tools for specific editors, too, such as Home Site, Front Page, Dreamweaver, others.
Load and Performance Test Tools Page Speed Testing Tools Mobile Web/App Testing Tools Visual Regression Testing Tools Link Checkers HTML Validators Web Accessibility Testing Tools Web Services Test Tools Note: Categories are not well-defined and some tools could have been listed in several categories; the 'Web Site Management Tools' category includes products that contain: site version control tools, combined utilities/tools, server management and optimization tools, and authoring/publishing/deployment tools that include significant site management or testing capabilities.
Go Replay - Performance testing tool that listens for traffic on production servers and feeds it to test and dev environments. Pro version supports replaying and keep-alive sessions to ensure that you get the exact same number of connections every time.
Octo Perf - Commercial Saas online platform load testing service for web and mobile applications. Apica Loadtest - Offers flexible self service and full service load testing able to test 2MM concurrent users, through a network of 50 locations around the world.