Positive Technologies XSpider PRO is a commercial vulnerability assessment solution by Positive Technologies. Semperis Purple Knight is a free vulnerability assessment solution by Semperis. Features, integrations, deployment and the company behind each one, side by side.
Russian vulnerability scanner for SMB infra up to 500 hosts, black/white box.
Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning
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Based on what each listing shows: deployment, company size, price and open source.
Positive Technologies XSpider PRO fits if you need to run it on your own servers.
Semperis Purple Knight fits if you want a cloud product, you are a startup or a mid-market company or an enterprise and you need a free product.
Common questions when comparing Positive Technologies XSpider PRO vs Semperis Purple Knight for vulnerability assessment.
Positive Technologies XSpider PRO: Russian vulnerability scanner for SMB infra up to 500 hosts, black/white box. Built by Positive Technologies.
Semperis Purple Knight: Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning. Built by Semperis.
The table above shows where their features, integrations, deployment and company size fit differ.
Positive Technologies XSpider PRO is made by Positive Technologies. Semperis Purple Knight is made by Semperis. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Positive Technologies XSpider PRO and Semperis Purple Knight are both Vulnerability Assessment products. Key differences: Positive Technologies XSpider PRO is Commercial while Semperis Purple Knight is Free. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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