# Checkmarx One DAST vs Source Defense How it works: 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 How it works](https://cybersectools.com/tools/source-defense-how-it-works) 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 How it works | |---|---|---| | 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 How it works | |---|---|---| | CI/CD | Yes | – | | DAST | Yes | – | | Web Security | Yes | Yes | | Sandbox | – | Yes | | Browser Security | – | Yes | ### Core features **Checkmarx One DAST** 10 features listed. Sign in on the page to see them. **Source Defense How it works** 8 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 How it works** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Source Defense How it works](https://cybersectools.com/tools/source-defense-how-it-works) fits if you are a small business. ## Checkmarx One DAST vs Source Defense How it works FAQ Common questions when comparing Checkmarx One DAST vs Source Defense How it works for dynamic application security testing. ### What is the difference between Checkmarx One DAST and Source Defense How it works? **Checkmarx One DAST**: Enterprise DAST solution for runtime app and API security testing, built by Checkmarx. **Source Defense How it works**: Client-side security for websites against 3rd party vendor attacks, 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 How it works? **Checkmarx One DAST** is made by Checkmarx. **Source Defense How it works** 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 How it works? In part. Checkmarx One DAST and Source Defense How it works 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 ImmuniWeb® Neuron](https://cybersectools.com/compare/checkmarx-one-dast-vs-immuniwebr-neuron) - [Checkmarx One DAST vs Mend DAST](https://cybersectools.com/compare/checkmarx-one-dast-vs-mend-dast) - [Source Defense How it works vs Tenable One Web App Scanning](https://cybersectools.com/compare/source-defense-how-it-works-vs-tenable-web-app-scanning) - [Source Defense How it works vs ImmuniWeb® Neuron](https://cybersectools.com/compare/immuniwebr-neuron-vs-source-defense-how-it-works) - [Source Defense How it works vs Mend DAST](https://cybersectools.com/compare/mend-dast-vs-source-defense-how-it-works) ## Alternatives to each - [See all Checkmarx One DAST alternatives](https://cybersectools.com/alternatives/checkmarx-one-dast) - [See all Source Defense How it works alternatives](https://cybersectools.com/alternatives/source-defense-how-it-works) --- Source: https://cybersectools.com/compare/checkmarx-one-dast-vs-source-defense-how-it-works 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 How it works: 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