Trust & Security For CrossBrowserTesting Web Platform
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CrossBrowserTesting's Security

You can be assured that a dedicated team of experts has your back when it comes to the security of data. Read below how we ensure the utmost privacy with each and every test and artifact.

At CrossBrowserTesting we hope to enable you to test faster, broader, and with more accuracy. We also recognize that entrusting your applications in our cloud requires a certain degree of trust, which is why we have worked hard to create a platform that allows customers of all sizes to test their web based applications without having to worry about security. The privacy of our customers’ testing and data is paramount and the entire service has been built around ensuring we protect both. The following includes details outlining how we continually prioritize security at CrossBrowserTesting to ensure trust for our users.

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Application Level Security

CrossBrowserTesting stores customer passwords in an encrypted format and all login and payment information is passed over secure HTTPS connections. We utilize for maintaining credit card account information and do not store any credit card information at CrossBrowserTesting. This means we can not access this information during or after your subscription, ensuring your complete financial security.

Network Access

HTTPS is used throughout the entire platform, providing a secure, encrypted connection that ensures safety of any data passing through the application. In addition, the HTML5 based VNC viewer utilizes secure web sockets (WSS) as the transport protocol between the CrossBrowserTesting servers and the end user's client, adding an additional layer of security.

Local Tunnels

CrossBrowserTesting allows you to test not only public sites, but also development and test sites behind firewalls and within your network. We create a secure web socket (WSS) tunnel from your machine to our server. When you launch a test in our system while you have a local tunnel connected, that browser sends all traffic via this secure tunnel to your machine, where the request is handled and sent back to the remote browser to be rendered. This allows you to test your website on full-scale browsers before going live, allowing you to keep information private from the access of the rest of the internet you don’t want seeing your content and data. You can read more about our local connection set up here.

We have two methods for creating the local connection: Both the Node.js module command line tool and the Chrome browser extension create a secure connection between CrossBrowserTesting servers and the client PC using secure web sockets (WSS). The tunnel is strictly limited to the user account that created the tunnel. All tunnels must be explicitly be initiated by the end user; CrossBrowserTesting has no ability to initiate connections into the user's environment. To disconnect the tunnel, you can:
  • Chrome Extension:
    • Click the Disable Tunnel button in the browser.
    • Close the browser window it was launched from.
  • Node.js module:
    • Stop the command line execution.
Should a user forget to stop the local Tunnel connection, the system will automatically disconnect the tunnel after one hour of inactivity.

Learn More About Local Tunnel Security

Privacy and Cleaning Process

All data from a testing session, including cookies, browser history, cached data, and saved browser passwords are cleansed after each use to ensure the next customer to request a configuration receives a pristine environment. This is done in different ways depending on the environment:
Virtual machines
The Windows, Linux, Windows Phone emulator, Android emulators, iPhone & iPad simulators and Mac OS X configurations are spun up from frozen disk images on virtual machines. These snapshotted images are reverted after each use to their original, frozen state and the images are never re-used for multiple tests. This process ensures the security and privacy of our customers' data.
Physical Mobile devices
Physical devices are locked down so only the browsers can be run. After each use, our unique cleaning process removes all traces of use including the browser history, cache, cookies, and any other saved data on the device. This ensures each test begins at a consistent starting point and doesn’t have to worry about data getting into the wrong hands or being sold to unauthorized sources.

Test Results

CrossBrowserTesting allows users to take snapshots and videos of live tests. These recordings are critical to the QA process, allowing users to document issues and securely communicate them to others without requiring the recipient to have a license to CrossBrowserTesting. In addition, users can capture network packet recordings of any tests, allowing them to see the HTTP request stream from a page request. Similarly, the Screenshot system also captures and saves screenshots of the URLs tested. All of these resources are transported over HTTPS and stored securely on Amazon S3.


CrossBrowserTesting uses a private hosting facility to ensure the security of the testing infrastructure. All systems, virtual machines, physical Mac minis, iPhones, iPads, and physical Android devices are located in this secured facility.

Data Center Details

  • Internet connectivity through multiple gigabit network connections utilizing Cisco high bandwidth routers.
  • High reliability (99.9%+).
  • Secure, temperature-controlled premises.
  • Secured rack space for email and/or other web server(s).
  • Network monitoring 24 hours a day, 7 days a week.
  • Security camera surveillance 24/7.
  • Controlled office alarm system.
  • Security guard protection services.
We’re always looking for customer feedback. For additional information on security or suggestions on how we can further guarantee user privacy, reach out to us at

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