Monarx Threat Shield is a commercial runtime application Self-Protection solution by Monarx. Source Defense Platform is a commercial runtime application Self-Protection solution by Source Defense. Features, integrations, deployment and the company behind each one, side by side.
Real-time web application firewall with runtime protection for PHP apps
Client-side security platform protecting against JavaScript-based threats
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Based on what each listing shows: deployment, company size, price and open source.
Monarx Threat Shield fits if you need to run it on your own servers and you are a startup.
Source Defense Platform fits if you want a cloud product.
Common questions when comparing Monarx Threat Shield vs Source Defense Platform for runtime application Self-Protection.
Monarx Threat Shield: Real-time web application firewall with runtime protection for PHP apps, built by Monarx.
Source Defense Platform: Client-side security platform protecting against JavaScript-based threats, built by Source Defense.
The table above shows where their features, integrations, deployment and company size fit differ.
Monarx Threat Shield is made by Monarx. Source Defense Platform is made by Source Defense. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Monarx Threat Shield and Source Defense Platform are both Runtime Application Self-Protection products. Use the table above to see where features, deployment and company size fit differ.
No Runtime Application Self-Protection shortlist yet. This is the closest one.
Updated 2026-11-01
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