# Checkmarx One DAST vs Source Defense Platform: side-by-side comparison (2026)

[Checkmarx One DAST](https://cybersectools.com/tools/checkmarx-one-dast) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [Checkmarx](https://cybersectools.com/companies/checkmarx). [Source Defense Platform](https://cybersectools.com/tools/source-defense-platform) is a commercial [runtime application Self-Protection](https://cybersectools.com/categories/rasp) solution by [Source Defense](https://cybersectools.com/companies/source-defense). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Checkmarx One DAST](https://cybersectools.com/tools/checkmarx-one-dast)

Best for: AppSec teams already using Checkmarx One

It is on this list because it is built for hard logins, from two-factor to single sign-on, and because it joins what code scans and live scans find about your APIs. It fits mid-sized and large AppSec teams already on Checkmarx One. If you do not run other Checkmarx scanners, the shared inventory and scores matter less, so judge it on its scanning alone.

From [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions) picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.

## Side-by-side comparison

| | Checkmarx One DAST | Source Defense Platform |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Dynamic Application Security Testing | Runtime Application Self-Protection |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Checkmarx | Source Defense |
| Headquarters | – | – |

### Use cases and capabilities

| | Checkmarx One DAST | Source Defense Platform |
|---|---|---|
| CI/CD | Yes | – |
| DAST | Yes | – |
| Web Security | Yes | Yes |

### Core features

**Checkmarx One DAST**

10 features listed. Sign in on the page to see them.

**Source Defense Platform**

10 features listed. Sign in on the page to see them.

### Integrations

**Checkmarx One DAST**

35 integrations listed. Sign in on the page to see them.

**Source Defense Platform**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Source Defense Platform](https://cybersectools.com/tools/source-defense-platform) fits if you are a small business.

## Checkmarx One DAST vs Source Defense Platform FAQ

Common questions when comparing Checkmarx One DAST vs Source Defense Platform for dynamic application security testing.

### What is the difference between Checkmarx One DAST and Source Defense Platform?

**Checkmarx One DAST**: Enterprise DAST solution for runtime app and API security testing, built by Checkmarx.

**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.

### Who makes Checkmarx One DAST and Source Defense Platform?

**Checkmarx One DAST** is made by Checkmarx. **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.

### Is Checkmarx One DAST a good alternative to Source Defense Platform?

In part. Checkmarx One DAST and Source Defense Platform are not in the same category on CybersecTools. Both cover Web Security. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Checkmarx One DAST vs Tenable One Web App Scanning](https://cybersectools.com/compare/checkmarx-one-dast-vs-tenable-web-app-scanning)
- [Checkmarx One DAST vs Qualys TotalAppSec](https://cybersectools.com/compare/checkmarx-one-dast-vs-qualys-totalappsec)
- [Checkmarx One DAST vs ImmuniWeb® Neuron](https://cybersectools.com/compare/checkmarx-one-dast-vs-immuniwebr-neuron)
- [Source Defense Platform vs Tenable One Web App Scanning](https://cybersectools.com/compare/source-defense-platform-vs-tenable-web-app-scanning)
- [Source Defense Platform vs Qualys TotalAppSec](https://cybersectools.com/compare/qualys-totalappsec-vs-source-defense-platform)
- [Source Defense Platform vs ImmuniWeb® Neuron](https://cybersectools.com/compare/immuniwebr-neuron-vs-source-defense-platform)

## Alternatives to each

- [See all Checkmarx One DAST alternatives](https://cybersectools.com/alternatives/checkmarx-one-dast)
- [See all Source Defense Platform alternatives](https://cybersectools.com/alternatives/source-defense-platform)

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Source: https://cybersectools.com/compare/checkmarx-one-dast-vs-source-defense-platform

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/checkmarx-one-dast.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Checkmarx One DAST and Source Defense Platform: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md