Checkmarx One DAST is a commercial dynamic application security testing solution by Checkmarx. Source Defense How it works is a commercial runtime application Self-Protection solution by Source Defense. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
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, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Enterprise DAST solution for runtime app and API security testing
Client-side security for websites against 3rd party vendor attacks
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Source Defense How it works fits if you are a small business.
Common questions when comparing Checkmarx One DAST vs Source Defense How it works for dynamic application security testing.
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.
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.
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.
Need the answer fast? Best DAST Solutions for Business picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.See the shortlist
