JavaScript vs. PlayCode vs. Roy vs. cside Comparison Chart

Developers interested in a playground and sandbox solution to write, run and test code

Security & front-end engineers who need real-time monitoring, forensic history, and PCI-ready reporting for every third-party script in production.

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The detection engine uses an open-source LLM that runs entirely inside a self-hosted environment

The c/side AI engine detected that the modified script exhibited keylogger behavior and was flagged as malicious. Customers can then review the script and, if necessary, block the corresponding hash values.

c/side is a cutting-edge client-side security solution designed to protect digital organizations from the growing threat of browser-based attacks. Unlike traditional security tools that rely solely on threat feed intelligence, c/side employs a fully autonomous detection system that uses historical context and AI to analyze the behavior and payload of third-party scripts. This proactive approach allows c/side to identify and block potential threats before they can reach your users, ensuring robust protection against zero-day vulnerabilities and supply chain attacks. With its unique proxy solution, c/side offers unparalleled defense for client-side applications, making it an essential tool for any organization looking to safeguard their web presence.

100 % session coverage, DOM-level diffing, conditional threat detection (geo/time/user cohort). c/side sits in the path of every third-party request, fetches the actual JavaScript, and inspects it in real time. So malicious code is blocked before the browser can execute a single line.

VikingCloud’s independent assessment confirms that, when properly configured, both the (hybrid) proxy and crawler modes fulfil these requirements by continuously hashing, analysing, and, if necessary, blocking scripts in real-time. The c/side platform offers a dedicated PCI DSS dashboard that explicitly covers insights into 6.4.3 and 11.6.1 requirements.

Proxy and crawler only store the requester’s IP address for incident scoping; that data is never brokered or used for advertising. All proxy and crawler data remains in c/side-managed clusters hosted in AWS.

Stop Magecart, formjacking, token hijacking, cryptojacking, and more! By integrating proxy-based architecture, a proxy sits between the third, fourth, and nth party script and the user's browser, allowing it to see the code fetched by the user's browser. The c/side proxy delivers continuous, full–spectrum visibility and control over all third party scripts executed in the user’s browser 100 % of the time without sampling.

By providing real-time payload inspection, automated blocking, full historical payload storage, and auditor-ready reports that map directly to the testing procedures in PCI DSS 4.0.1.

VikingCloud noted that the c/side platform intercepted and blocked the third-party script actively to prevent data leakage.

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