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In this blog, learn how enterprises can leverage HyperExecute for secure and efficient on-premise testing.

Wasiq Bhamla
January 13, 2026
When running automated tests with Selenium, testing large and complex web applications using traditional testing methods can take forever. Selenium Grid may distribute your test workload across multiple virtual machines, each running different browsers and operating systems. But there are other sides of the world as well.
Now, there are cloud-based Selenium Grid options, but some enterprises have stricter security needs or compliance regulations. For them, an on-premise Selenium Grid might be a better fit. This way, they keep all their test scripts and data within their network, behind their firewall.
In this blog, we look at how enterprises can leverage an on-premise Selenium Grid for secure and efficient testing.
Every enterprise tries to keep up with the pace to upgrade to the latest technology and trends to create quality web applications. Depending on the target audiences, they also prioritize their investments in building websites or web applications.
To provide a seamless end-user experience, it’s essential to test the website and web applications to ensure browser compatibility across various browsers, browser versions, and operating systems.
To achieve this kind of testing, there should be a remote test lab or a browser farm should be set up to execute the tests on them.
But the million-dollar question is:
Should you invest in building and scaling up an in-house infrastructure or opt for a cloud-based platform that provides an online Selenium Grid?
Well, we all know the monumental impact cloud technologies and platforms have on our lives! Before I talk a bit more about it, let me walk you through some of the integral aspects of Selenium Grid.
Selenium Grid lets you run multiple test scripts on different browsers, operating systems, and machines at the same time. The Hub and Node architecture of Selenium Grid acts as a central point for coordinating all the connected test machines.
This setup makes testing faster because it’s spread out across different machines. Plus, it can run tests in parallel, which makes testing more efficient. This is especially handy for complex testing setups and constantly integrating new code.

With some notable enhancements over Selenium 3, the latest version, released in October 2021, is Selenium 4. The adoption of the W3C WebDriver Protocol rather than the JSON Wire Protocol is one major addition of Selenium 4. This makes Selenium 4 even better than before.
You can check out this blog on Selenium 3 vs Selenium 4 to know the difference between Selenium 3 and Selenium 4. As mentioned above, Selenium Grid can have multiple options: cloud-based Selenium Grid and on-premise Selenium Grid.
Note: Experience 70% faster Selenium test execution on-premise. Try HyperExecute today!
A cloud-based Selenium Grid (aka online Selenium Grid) is a hosted version of the traditional Selenium Grid. Instead of managing an in-house test infrastructure, a cloud provider takes care of everything.
This comes with several advantages:
However, there are also some shortcomings to consider:
Cloud-based Selenium Grids are a viable option for enterprises valuing convenience, scalability, and testing environments. However, businesses with security needs or financial limitations might opt to establish their own on-premise Selenium Grid.
Take TestMu AI, a cloud-based testing platform, for instance. It offers scalability, reliability, and a secure infrastructure for automation testing requirements. Learn more about TestMu AI Security.
Now, let’s discuss about on-premise Selenium Grid and its benefits over the cloud Selenium Grid.
On-premise Selenium Grid is an internal setup within an enterprise’s infrastructure, running on its servers. This involves configuring multiple browsers and devices for testing purposes and integrating them into their Selenium Grid hosted internally – ensuring regular monitoring to keep it updated and operational.
While cloud-based Selenium Grids provide ease of operation, on-premise grids offer distinct advantages to enterprises with specific security needs:
While on-premise Selenium Grids require some initial setup and maintenance effort, the benefits of increased security, control, and cost-effectiveness can be significant for many enterprises.
However, the on-premise Selenium Grid may have a few shortcomings:
Scaling is also important because you must keep up with new versions of browsers getting released frequently and new brands and models of devices getting rolled out. It becomes very important to ensure your product is compatible with those versions of browsers and devices.
If the cloud solution of Selenium Grid is already available with TestMu AI, then why are we even discussing in-house or on-premise Selenium Grid solutions? Why can’t this cloud solution be used by all the enterprises?
To answer these questions, firstly, the cloud solution would solve all the requirements for any enterprises but some of them are very strict in using their users’ or customers’ data on devices or browsers that are shared by other customers of TestMu AI. Even though TestMu AI and most cloud providers purge the data from their browsers and devices after every test execution, these enterprises may feel insecure because the tests are not running in their infrastructure.
We have all heard that data is the new oil. As we browse the web, we are leaving our data trail on the web. Needless to say, there are devastating consequences of data breaches and data thefts! However, it’s recommended to go in a different direction.
Though every enterprise gives precedence to data privacy and data protection, certain institutions like banks, fintech, etc., might have concerns about adopting the cloud. However, what if they can leverage the convenience of the cloud infrastructure paired with security and performance behind their own firewall?
Does this sound something similar to a dedicated cloud?
Such a solution would help enterprises scale up their tests in a massive way and provide significant ROI from the tests. For instance, an AI-native test orchestration and execution platform like TestMu AI offers HyperExecute, an AI-native end-to-end test orchestration platform offering an on-premise Selenium Grid where enterprises can run tests on the cloud.
Developers and testers often struggle with slow test runs and the hassle of managing them efficiently. Until now, their options were limited: either rely on traditional cloud setups that haven’t kept up with modern needs or build their own in-house grid from scratch.
The challenge with traditional solutions is that they involve a lot of back-and-forth communication between different parts of the testing setup. Each test scenario has to travel through various points before execution, causing delays and making tests less reliable.
One standout feature of HyperExecute is the Auto Split feature. This feature enhances testing performance by allowing you to add concurrency for faster results, prioritize failed test cases for quicker feedback in subsequent executions, and easily distribute tests. This feature helps overcome the challenge of slow test execution and helps you distribute test cases evenly.
Watch the video below to learn more about this auto split feature.
Local setups, on the other hand, lack the advanced features of cloud solutions, forcing users to compromise. According to the Future of Quality Assurance Survey by TestMu AI, 42.10% of large organizations still use a local or self-hosted grid (on-premise) for automated test execution. This poses challenges for enterprises like poor test infrastructure, high test execution time, and flaky tests. This is where HyperExecute by TestMu AI comes into play.

HyperExecute is an end-to-end test orchestration cloud platform that lets enterprises test at scale, which is up to 70% faster than traditional cloud setups. It reduces friction for developers and testers, helping enterprises ship their software products faster.
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If you’re worried about keeping your data safe within your enterprise’s firewalls, HyperExecute has you covered. With HyperExecute on-premise cloud features, enterprises can create their cloud setup right within their servers. This means the data stays within their secure network at all times. Also, enterprises can easily adjust the setup scale to meet their software application needs, whether ramping up or scaling down.
HyperExecute also comes with a private cloud. Therefore, you can test with Selenium on-premise while leveraging the following benefits:
Enterprises can benefit from HyperExecute in leveraging an on-premise Selenium Grid as it provides a strong basis for an on-premise solution that can use existing tools and technologies.
Implementing an on-premise Selenium Grid gives enterprises more control over security and cost. With an on-premise Selenium Grid, test data would be protected behind the firewall, the test infrastructure environment could be customized, and reduce overall costs.
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